open-vault/builtin/logical/pki/storage_migrations_test.go

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Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
package pki
import (
"context"
"strings"
"testing"
"time"
"github.com/hashicorp/vault/sdk/helper/certutil"
"github.com/hashicorp/vault/sdk/logical"
"github.com/stretchr/testify/require"
)
func Test_migrateStorageEmptyStorage(t *testing.T) {
t.Parallel()
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
startTime := time.Now()
ctx := context.Background()
b, s := CreateBackendWithStorage(t)
sc := b.makeStorageContext(ctx, s)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
// Reset the version the helper above set to 1.
b.pkiStorageVersion.Store(0)
require.True(t, b.useLegacyBundleCaStorage(), "pre migration we should have been told to use legacy storage.")
request := &logical.InitializationRequest{Storage: s}
err := b.initialize(ctx, request)
require.NoError(t, err)
issuerIds, err := sc.listIssuers()
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.NoError(t, err)
require.Empty(t, issuerIds)
keyIds, err := sc.listKeys()
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.NoError(t, err)
require.Empty(t, keyIds)
logEntry, err := getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry)
require.Equal(t, latestMigrationVersion, logEntry.MigrationVersion)
require.True(t, len(strings.TrimSpace(logEntry.Hash)) > 0,
"Hash value (%s) should not have been empty", logEntry.Hash)
require.True(t, startTime.Before(logEntry.Created),
"created log entry time (%v) was before our start time(%v)?", logEntry.Created, startTime)
require.Empty(t, logEntry.CreatedIssuer)
require.Empty(t, logEntry.CreatedKey)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.False(t, b.useLegacyBundleCaStorage(), "post migration we are still told to use legacy storage")
// Make sure we can re-run the migration without issues
request = &logical.InitializationRequest{Storage: s}
err = b.initialize(ctx, request)
require.NoError(t, err)
logEntry2, err := getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry2)
// Make sure the hash and created times have not changed.
require.Equal(t, logEntry.Created, logEntry2.Created)
require.Equal(t, logEntry.Hash, logEntry2.Hash)
}
func Test_migrateStorageOnlyKey(t *testing.T) {
t.Parallel()
startTime := time.Now()
ctx := context.Background()
b, s := CreateBackendWithStorage(t)
sc := b.makeStorageContext(ctx, s)
// Reset the version the helper above set to 1.
b.pkiStorageVersion.Store(0)
require.True(t, b.useLegacyBundleCaStorage(), "pre migration we should have been told to use legacy storage.")
bundle := genCertBundle(t, b, s)
// Clear everything except for the key
bundle.SerialNumber = ""
bundle.CAChain = []string{}
bundle.Certificate = ""
bundle.IssuingCA = ""
json, err := logical.StorageEntryJSON(legacyCertBundlePath, bundle)
require.NoError(t, err)
err = s.Put(ctx, json)
require.NoError(t, err)
request := &logical.InitializationRequest{Storage: s}
err = b.initialize(ctx, request)
require.NoError(t, err)
issuerIds, err := sc.listIssuers()
require.NoError(t, err)
require.Equal(t, 0, len(issuerIds))
keyIds, err := sc.listKeys()
require.NoError(t, err)
require.Equal(t, 1, len(keyIds))
logEntry, err := getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry)
require.Equal(t, latestMigrationVersion, logEntry.MigrationVersion)
require.True(t, len(strings.TrimSpace(logEntry.Hash)) > 0,
"Hash value (%s) should not have been empty", logEntry.Hash)
require.True(t, startTime.Before(logEntry.Created),
"created log entry time (%v) was before our start time(%v)?", logEntry.Created, startTime)
require.Equal(t, logEntry.CreatedIssuer, issuerID(""))
require.Equal(t, logEntry.CreatedKey, keyIds[0])
keyId := keyIds[0]
key, err := sc.fetchKeyById(keyId)
require.NoError(t, err)
require.True(t, strings.HasPrefix(key.Name, "current-"),
"expected key name to start with current- was %s", key.Name)
require.Equal(t, keyId, key.ID)
require.Equal(t, strings.TrimSpace(bundle.PrivateKey), strings.TrimSpace(key.PrivateKey))
require.Equal(t, bundle.PrivateKeyType, key.PrivateKeyType)
// Make sure we kept the old bundle
_, certBundle, err := getLegacyCertBundle(ctx, s)
require.NoError(t, err)
require.Equal(t, bundle, certBundle)
// Make sure we setup the default values
keysConfig, err := sc.getKeysConfig()
require.NoError(t, err)
require.Equal(t, &keyConfigEntry{DefaultKeyId: keyId}, keysConfig)
issuersConfig, err := sc.getIssuersConfig()
require.NoError(t, err)
2022-11-08 19:40:29 +00:00
require.Equal(t, issuerID(""), issuersConfig.DefaultIssuerId)
// Make sure if we attempt to re-run the migration nothing happens...
err = migrateStorage(ctx, b, s)
require.NoError(t, err)
logEntry2, err := getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry2)
require.Equal(t, logEntry.Created, logEntry2.Created)
require.Equal(t, logEntry.Hash, logEntry2.Hash)
require.False(t, b.useLegacyBundleCaStorage(), "post migration we are still told to use legacy storage")
}
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
func Test_migrateStorageSimpleBundle(t *testing.T) {
t.Parallel()
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
startTime := time.Now()
ctx := context.Background()
b, s := CreateBackendWithStorage(t)
sc := b.makeStorageContext(ctx, s)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
// Reset the version the helper above set to 1.
b.pkiStorageVersion.Store(0)
require.True(t, b.useLegacyBundleCaStorage(), "pre migration we should have been told to use legacy storage.")
bundle := genCertBundle(t, b, s)
json, err := logical.StorageEntryJSON(legacyCertBundlePath, bundle)
require.NoError(t, err)
err = s.Put(ctx, json)
require.NoError(t, err)
request := &logical.InitializationRequest{Storage: s}
err = b.initialize(ctx, request)
require.NoError(t, err)
issuerIds, err := sc.listIssuers()
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.NoError(t, err)
require.Equal(t, 1, len(issuerIds))
keyIds, err := sc.listKeys()
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.NoError(t, err)
require.Equal(t, 1, len(keyIds))
logEntry, err := getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry)
require.Equal(t, latestMigrationVersion, logEntry.MigrationVersion)
require.True(t, len(strings.TrimSpace(logEntry.Hash)) > 0,
"Hash value (%s) should not have been empty", logEntry.Hash)
require.True(t, startTime.Before(logEntry.Created),
"created log entry time (%v) was before our start time(%v)?", logEntry.Created, startTime)
require.Equal(t, logEntry.CreatedIssuer, issuerIds[0])
require.Equal(t, logEntry.CreatedKey, keyIds[0])
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
issuerId := issuerIds[0]
keyId := keyIds[0]
issuer, err := sc.fetchIssuerById(issuerId)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.NoError(t, err)
require.True(t, strings.HasPrefix(issuer.Name, "current-"),
"expected issuer name to start with current- was %s", issuer.Name)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.Equal(t, certutil.ErrNotAfterBehavior, issuer.LeafNotAfterBehavior)
key, err := sc.fetchKeyById(keyId)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.NoError(t, err)
require.True(t, strings.HasPrefix(key.Name, "current-"),
"expected key name to start with current- was %s", key.Name)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.Equal(t, issuerId, issuer.ID)
require.Equal(t, bundle.SerialNumber, issuer.SerialNumber)
require.Equal(t, strings.TrimSpace(bundle.Certificate), strings.TrimSpace(issuer.Certificate))
require.Equal(t, keyId, issuer.KeyID)
require.Empty(t, issuer.ManualChain)
require.Equal(t, []string{bundle.Certificate + "\n"}, issuer.CAChain)
require.Equal(t, AllIssuerUsages, issuer.Usage)
require.Equal(t, certutil.ErrNotAfterBehavior, issuer.LeafNotAfterBehavior)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.Equal(t, keyId, key.ID)
require.Equal(t, strings.TrimSpace(bundle.PrivateKey), strings.TrimSpace(key.PrivateKey))
require.Equal(t, bundle.PrivateKeyType, key.PrivateKeyType)
// Make sure we kept the old bundle
_, certBundle, err := getLegacyCertBundle(ctx, s)
require.NoError(t, err)
require.Equal(t, bundle, certBundle)
// Make sure we setup the default values
keysConfig, err := sc.getKeysConfig()
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.NoError(t, err)
require.Equal(t, &keyConfigEntry{DefaultKeyId: keyId}, keysConfig)
issuersConfig, err := sc.getIssuersConfig()
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
require.NoError(t, err)
2022-11-08 19:40:29 +00:00
require.Equal(t, issuerId, issuersConfig.DefaultIssuerId)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
// Make sure if we attempt to re-run the migration nothing happens...
err = migrateStorage(ctx, b, s)
require.NoError(t, err)
logEntry2, err := getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry2)
require.Equal(t, logEntry.Created, logEntry2.Created)
require.Equal(t, logEntry.Hash, logEntry2.Hash)
require.False(t, b.useLegacyBundleCaStorage(), "post migration we are still told to use legacy storage")
// Make sure we can re-process a migration from scratch for whatever reason
err = s.Delete(ctx, legacyMigrationBundleLogKey)
require.NoError(t, err)
err = migrateStorage(ctx, b, s)
require.NoError(t, err)
logEntry3, err := getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry3)
require.NotEqual(t, logEntry.Created, logEntry3.Created)
require.Equal(t, logEntry.Hash, logEntry3.Hash)
Allow Multiple Issuers in PKI Secret Engine Mounts - PKI Pod (#15277) * Starter PKI CA Storage API (#14796) * Simple starting PKI storage api for CA rotation * Add key and issuer storage apis * Add listKeys and listIssuers storage implementations * Add simple keys and issuers configuration storage api methods * Handle resolving key, issuer references The API context will usually have a user-specified reference to the key. This is either the literal string "default" to select the default key, an identifier of the key, or a slug name for the key. Here, we wish to resolve this reference to an actual identifier that can be understood by storage. Also adds the missing Name field to keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add method to fetch an issuer's cert bundle This adds a method to construct a certutil.CertBundle from the specified issuer identifier, optionally loading its corresponding key for signing. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor certutil PrivateKey PEM handling This refactors the parsing of PrivateKeys from PEM blobs into shared methods (ParsePEMKey, ParseDERKey) that can be reused by the existing Bundle parsing logic (ParsePEMBundle) or independently in the new issuers/key-based PKI storage code. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add importKey, importCert to PKI storage importKey is generally preferable to the low-level writeKey for adding new entries. This takes only the contents of the private key (as a string -- so a PEM bundle or a managed key handle) and checks if it already exists in the storage. If it does, it returns the existing key instance. Otherwise, we create a new one. In the process, we detect any issuers using this key and link them back to the new key entry. The same holds for importCert over importKey, with the note that keys are not modified when importing certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for importing issuers, keys This adds tests for importing keys and issuers into the new storage layout, ensuring that identifiers are correctly inferred and linked. Note that directly writing entries to storage (writeKey/writeissuer) will take KeyID links from the parent entry and should not be used for import; only existing entries should be updated with this info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Implement PKI storage migration. - Hook into the backend::initialize function, calling the migration on a primary only. - Migrate an existing certificate bundle to the new issuers and key layout * Make fetchCAInfo aware of new storage layout This allows fetchCAInfo to fetch a specified issuer, via a reference parameter provided by the user. We pass that into the storage layer and have it return a cert bundle for us. Finally, we need to validate that it truly has the key desired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Begin /issuers API endpoints This implements the fetch operations around issuers in the PKI Secrets Engine. We implement the following operations: - LIST /issuers - returns a list of known issuers' IDs and names. - GET /issuer/:ref - returns a JSON blob with information about this issuer. - POST /issuer/:ref - allows configuring information about issuers, presently just its name. - DELETE /issuer/:ref - allows deleting the specified issuer. - GET /issuer/:ref/{der,pem} - returns a raw API response with just the DER (or PEM) of the issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add import to PKI Issuers API This adds the two core import code paths to the API: /issuers/import/cert and /issuers/import/bundle. The former differs from the latter in that the latter allows the import of keys. This allows operators to restrict importing of keys to privileged roles, while allowing more operators permission to import additional certificates (not used for signing, but instead for path/chain building). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-intermediate endpoint This endpoint allows existing issuers to be used to sign intermediate CA certificates. In the process, we've updated the existing /root/sign-intermediate endpoint to be equivalent to a call to /issuer/default/sign-intermediate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-self-issued endpoint This endpoint allows existing issuers to be used to sign self-signed certificates. In the process, we've updated the existing /root/sign-self-issued endpoint to be equivalent to a call to /issuer/default/sign-self-issued. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/sign-verbatim endpoint This endpoint allows existing issuers to be used to directly sign CSRs. In the process, we've updated the existing /sign-verbatim endpoint to be equivalent to a call to /issuer/:ref/sign-verbatim. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow configuration of default issuers Using the new updateDefaultIssuerId(...) from the storage migration PR allows for easy implementation of configuring the default issuer. We restrict callers from setting blank defaults and setting default to default. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix fetching default issuers After setting a default issuer, one should be able to use the old /ca, /ca_chain, and /cert/{ca,ca_chain} endpoints to fetch the default issuer (and its chain). Update the fetchCertBySerial helper to no longer support fetching the ca and prefer fetchCAInfo for that instead (as we've already updated that to support fetching the new issuer location). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add /issuer/:ref/{sign,issue}/:role This updates the /sign and /issue endpoints, allowing them to take the default issuer (if none is provided by a role) and adding issuer-specific versions of them. Note that at this point in time, the behavior isn't yet ideal (as /sign/:role allows adding the ref=... parameter to override the default issuer); a later change adding role-based issuer specification will fix this incorrect behavior. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support root issuer generation * Add support for issuer generate intermediate end-point * Update issuer and key arguments to consistent values - Update all new API endpoints to use the new agreed upon argument names. - issuer_ref & key_ref to refer to existing - issuer_name & key_name for new definitions - Update returned values to always user issuer_id and key_id * Add utility methods to fetch common ref and name arguments - Add utility methods to fetch the issuer_name, issuer_ref, key_name and key_ref arguments from data fields. - Centralize the logic to clean up these inputs and apply various validations to all of them. * Rename common PKI backend handlers - Use the buildPath convention for the function name instead of common... * Move setting PKI defaults from writeCaBundle to proper import{keys,issuer} methods - PR feedback, move setting up the default configuration references within the import methods instead of within the writeCaBundle method. This should now cover all use cases of us setting up the defaults properly. * Introduce constants for issuer_ref, rename isKeyDefaultSet... * Fix legacy PKI sign-verbatim api path - Addresses some test failures due to an incorrect refactoring of a legacy api path /sign-verbatim within PKI * Use import code to handle intermediate, config/ca The existing bundle import code will satisfy the intermediate import; use it instead of the old ca_bundle import logic. Additionally, update /config/ca to use the new import code as well. While testing, a panic was discovered: > reflect.Value.SetMapIndex: value of type string is not assignable to type pki.keyId This was caused by returning a map with type issuerId->keyId; instead switch to returning string->string maps so the audit log can properly HMAC them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error message on missing defaults When the default issuer and key are missing (and haven't yet been specified), we should clarify that error message. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update test semantics for new changes This makes two minor changes to the existing test suite: 1. Importing partial bundles should now succeed, where they'd previously error. 2. fetchCertBySerial no longer handles CA certificates. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add support for deleting all keys, issuers The old DELETE /root code must now delete all keys and issuers for backwards compatibility. We strongly suggest calling individual delete methods (DELETE /key/:key_ref or DELETE /issuer/:issuer_ref) instead, for finer control. In the process, we detect whether the deleted key/issuers was set as the default. This will allow us to warn (from the single key/deletion issuer code) whether or not the default was deleted (while allowing the operation to succeed). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Introduce defaultRef constant within PKI - Replace hardcoded "default" references with a constant to easily identify various usages. - Use the addIssuerRefField function instead of redefining the field in various locations. * Rework PKI test TestBackend_Root_Idempotency - Validate that generate/root calls are no longer idempotent, but the bundle importing does not generate new keys/issuers - As before make sure that the delete root api resets everything - Address a bug within the storage that we bombed when we had multiple different key types within storage. * Assign Name=current to migrated key and issuer - Detail I missed from the RFC was to assign the Name field as "current" for migrated key and issuer. * Build CRL upon PKI intermediary set-signed api called - Add a call to buildCRL if we created an issuer within pathImportIssuers - Augment existing FullCAChain to verify we have a proper CRL post set-signed api call - Remove a code block writing out "ca" storage entry that is no longer used. * Identify which certificate or key failed When importing complex chains, we should identify in which certificate or key the failure occurred. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI migration writes out empty migration log entry - Since the elements of the struct were not exported we serialized an empty migration log to disk and would re-run the migration * Add chain-building logic to PKI issuers path With the one-entry-per-issuer approach, CA Chains become implicitly constructed from the pool of issuers. This roughly matches the existing expectations from /config/ca (wherein a chain could be provided) and /intemediate/set-signed (where a chain may be provided). However, in both of those cases, we simply accepted a chain. Here, we need to be able to reconstruct the chain from parts on disk. However, with potential rotation of roots, we need to be aware of disparate chains. Simply concating together all issuers isn't sufficient. Thus we need to be able to parse a certificate's Issuer and Subject field and reconstruct valid (and potentially parallel) parent<->child mappings. This attempts to handle roots, intermediates, cross-signed intermediates, cross-signed roots, and rotated keys (wherein one might not have a valid signature due to changed key material with the same subject). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Return CA Chain when fetching issuers This returns the CA Chain attribute of an issuer, showing its computed chain based on other issuers in the database, when fetching a specific issuer. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add testing for chain building Using the issuance infrastructure, we generate new certificates (either roots or intermediates), positing that this is roughly equivalent to importing an external bundle (minus error handling during partial imports). This allows us to incrementally construct complex chains, creating reissuance cliques and cross-signing cycles. By using ECDSA certificates, we avoid high signature verification and key generation times. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow manual construction of issuer chain Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of duplicate names With the new issuer field (manual_chain), we can no longer err when a name already exists: we might be updating the existing issuer (with the same name), but changing its manual_chain field. Detect this error and correctly handle it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for manual chain building We break the clique, instead building these chains manually, ensuring that the remaining chains do not change and only the modified certs change. We then reset them (back to implicit chain building) and ensure we get the same results as earlier. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter verification of issuers PEM format This ensures each issuer is only a single certificate entry (as validated by count and parsing) without any trailing data. We further ensure that each certificate PEM has leading and trailing spaces removed with only a single trailing new line remaining. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix full chain building Don't set the legacy IssuingCA field on the certificate bundle, as we prefer the CAChain field over it. Additionally, building the full chain could result in duplicate certificates when the CAChain included the leaf certificate itself. When building the full chain, ensure we don't include the bundle's certificate twice. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add stricter tests for full chain construction We wish to ensure that each desired certificate in the chain is only present once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename PKI types to avoid constant variable name collisions keyId -> keyID issuerId -> issuerID key -> keyEntry issuer -> issuerEntry keyConfig -> keyConfigEntry issuerConfig -> issuerConfigEntry * Update CRL handling for multiple issuers When building CRLs, we've gotta make sure certs issued by that issuer land up on that issuer's CRL and not some other CRL. If no CRL is found (matching a cert), we'll place it on the default CRL. However, in the event of equivalent issuers (those with the same subject AND the same key material) -- perhaps due to reissuance -- we'll only create a single (unified) CRL for them. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching updated CRL locations This updates fetchCertBySerial to support querying the default issuer's CRL. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL storage location test case Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update to CRLv2 Format to copy RawIssuer When using the older Certificate.CreateCRL(...) call, Go's x509 library copies the parsed pkix.Name version of the CRL Issuer's Subject field. For certain constructed CAs, this fails since pkix.Name is not suitable for round-tripping. This also builds a CRLv1 (per RFC 5280) CRL. In updating to the newer x509.CreateRevocationList(...) call, we can construct the CRL in the CRLv2 format and correctly copy the issuer's name. However, this requires holding an additional field per-CRL, the CRLNumber field, which is required in Go's implementation of CRLv2 (though OPTIONAL in the spec). We store this on the new LocalCRLConfigEntry object, per-CRL. Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add comment regarding CRL non-assignment in GOTO In previous versions of Vault, it was possible to sign an empty CRL (when the CRL was disabled and a force-rebuild was requested). Add a comment about this case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow fetching the specified issuer's CRL We add a new API endpoint to fetch the specified issuer's CRL directly (rather than the default issuer's CRL at /crl and /certs/crl). We also add a new test to validate the CRL in a multi-root scenario and ensure it is signed with the correct keys. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add new PKI key prefix to seal wrapped storage (#15126) * Refactor common backend initialization within backend_test - Leverage an existing helper method within the PKI backend tests to setup a PKI backend with storage. * Add ability to read legacy cert bundle if the migration has not occurred on secondaries. - Track the migration state forbidding an issuer/key writing api call if we have not migrated - For operations that just need to read the CA bundle, use the same tracking variable to switch between reading the legacy bundle or use the new key/issuer storage. - Add an invalidation function that will listen for updates to our log path to refresh the state on secondary clusters. * Always write migration entry to trigger secondary clusters to wake up - Some PR feedback and handle a case in which the primary cluster does not have a CA bundle within storage but somehow a secondary does. * Update CA Chain to report entire chain This merges the ca_chain JSON field (of the /certs/ca_chain path) with the regular certificate field, returning the root of trust always. This also affects the non-JSON (raw) endpoints as well. We return the default issuer's chain here, rather than all known issuers (as that may not form a strict chain). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow explicit issuer override on roles When a role is used to generate a certificate (such as with the sign/ and issue/ legacy paths or the legacy sign-verbatim/ paths), we prefer that issuer to the one on the request. This allows operators to set an issuer (other than default) for requests to be issued against, effectively making the change no different from the users' perspective as it is "just" a different role name. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for role-based issuer selection Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Expand NotAfter limit enforcement behavior Vault previously strictly enforced NotAfter/ttl values on certificate requests, erring if the requested TTL extended past the NotAfter date of the issuer. In the event of issuing an intermediate, this behavior was ignored, instead permitting the issuance. Users generally do not think to check their issuer's NotAfter date when requesting a certificate; thus this behavior was generally surprising. Per RFC 5280 however, issuers need to maintain status information throughout the life cycle of the issued cert. If this leaf cert were to be issued for a longer duration than the parent issuer, the CA must still maintain revocation information past its expiration. Thus, we add an option to the issuer to change the desired behavior: - err, to err out, - permit, to permit the longer NotAfter date, or - truncate, to silently truncate the expiration to the issuer's NotAfter date. Since expiration of certificates in the system's trust store are not generally validated (when validating an arbitrary leaf, e.g., during TLS validation), permit should generally only be used in that case. However, browsers usually validate intermediate's validity periods, and thus truncate should likely be used (as with permit, the leaf's chain will not validate towards the end of the issuance period). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for expanded issuance behaviors Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning on keyless default issuer (#15178) Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update PKI to new Operations framework (#15180) The backend Framework has updated Callbacks (used extensively in PKI) to become deprecated; Operations takes their place and clarifies forwarding of requests. We switch to the new format everywhere, updating some bad assumptions about forwarding along the way. Anywhere writes are handled (that should be propagated to all nodes in all clusters), we choose to forward the request all the way up to the performance primary cluster's primary node. This holds for issuers/keys, roles, and configs (such as CRL config, which is globally set for all clusters despite all clusters having their own separate CRL). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Kitography/vault 5474 rebase (#15150) * These parts work (put in signature so that backend wouldn't break, but missing fields, desc, etc.) * Import and Generate API calls w/ needed additions to SDK. * make fmt * Add Help/Sync Text, fix some of internal/exported/kms code. * Fix PEM/DER Encoding issue. * make fmt * Standardize keyIdParam, keyNameParam, keyTypeParam * Add error response if key to be deleted is in use. * replaces all instances of "default" in code with defaultRef * Updates from Callbacks to Operations Function with explicit forwarding. * Fixes a panic with names not being updated everywhere. * add a logged error in addition to warning on deleting default key. * Normalize whitespace upon importing keys. Authored-by: Alexander Scheel <alexander.m.scheel@gmail.com> * Fix isKeyInUse functionality. * Fixes tests associated with newline at end of key pem. * Add alternative proposal PKI aliased paths (#15211) * Add aliased path for root/rotate/:exported This adds a user-friendly path name for generating a rotated root. We automatically choose the name "next" for the newly generated root at this path if it doesn't already exist. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add aliased path for intermediate/cross-sign This allows cross-signatures to work. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add path for replacing the current root This updates default to point to the value of the issuer with name "next" rather than its current value. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove plural issuers/ in signing paths These paths use a single issuer and thus shouldn't include the plural issuers/ as a path prefix, instead using the singular issuer/ path prefix. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Only warn if default issuer was imported When the default issuer was not (re-)imported, we'd fail to find it, causing an extraneous warning about missing keys, even though this issuer indeed had a key. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing issuer sign/issue paths Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clean up various warnings within the PKI package (#15230) * Rebuild CRLs on secondary performance clusters post migration and on new/updated issuers - Hook into the backend invalidation function so that secondaries are notified of new/updated issuer or migrations occuring on the primary cluster. Upon notification schedule a CRL rebuild to take place upon the next process to read/update the CRL or within the periodic function if no request comes in. * Schedule rebuilding PKI CRLs on active nodes only - Address an issue that we were scheduling the rebuilding of a CRL on standby nodes, which would not be able to write to storage. - Fix an issue with standby nodes not correctly determining that a migration previously occurred. * Return legacy CRL storage path when no migration has occurred. * Handle issuer, keys locking (#15227) * Handle locking of issuers during writes We need a write lock around writes to ensure serialization of modifications. We use a single lock for both issuer and key updates, in part because certain operations (like deletion) will potentially affect both. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add missing b.useLegacyBundleCaStorage guards Several locations needed to guard against early usage of the new issuers endpoint pre-migration. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address PKI to properly support managed keys (#15256) * Address codebase for managed key fixes * Add proper public key comparison for better managed key support to importKeys * Remove redundant public key fetching within PKI importKeys * Correctly handle rebuilding remaining chains When deleting a specific issuer, we might impact the chains. From a consistency perspective, we need to ensure the remaining chains are correct and don't refer to the since-deleted issuer, so trigger a full rebuild here. We don't need to call this in the delete-the-world (DELETE /root) code path, as there shouldn't be any remaining issuers or chains to build. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove legacy CRL bundle on world deletion When calling DELETE /root, we should remove the legacy CRL bundle, since we're deleting the legacy CA issuer bundle as well. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remove deleted issuers' CRL entries Since CRLs are no longer resolvable after deletion (due to missing issuer ID, which will cause resolution to fail regardless of if an ID or a name/default reference was used), we should delete these CRLs from storage to avoid leaking them. In the event that this issuer comes back (with key material), we can simply rebuild the CRL at that time (from the remaining revoked storage entries). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthed JSON fetching of CRLs, Issuers (#15253) Default to fetching JSON CRL for consistency This makes the bare issuer-specific CRL fetching endpoint return the JSON-wrapped CRL by default, moving the DER CRL to a specific endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add JSON-specific endpoint for fetching issuers Unlike the unqualified /issuer/:ref endpoint (which also returns JSON), we have a separate /issuer/:ref/json endpoint to return _only_ the PEM-encoded certificate and the chain, mirroring the existing /cert/ca endpoint but for a specific issuer. This allows us to make the endpoint unauthenticated, whereas the bare endpoint would remain authenticated and usually privileged. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Add tests for raw JSON endpoints Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add unauthenticated issuers endpoints to PKI table This adds the unauthenticated issuers endpoints? - LIST /issuers, - Fetching _just_ the issuer certificates (in JSON/DER/PEM form), and - Fetching the CRL of this issuer (in JSON/DER/PEM form). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issuer usage restrictions bitset This allows issuers to have usage restrictions, limiting whether they can be used to issue certificates or if they can generate CRLs. This allows certain issuers to not generate a CRL (if the global config is with the CRL enabled) or allows the issuer to not issue new certificates (but potentially letting the CRL generation continue). Setting both fields to false effectively forms a soft delete capability. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * PKI Pod rotation Add Base Changelog (#15283) * PKI Pod rotation changelog. * Use feature release-note formatting of changelog. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Co-authored-by: Kit Haines <kit.haines@hashicorp.com> Co-authored-by: kitography <khaines@mit.edu>
2022-05-11 16:42:28 +00:00
}
PKI - Fix order of chain building writes (#17772) * Ensure correct write ordering in rebuildIssuersChains When troubleshooting a recent migration failure from 1.10->1.11, it was noted that some PKI mounts had bad chain construction despite having valid, chaining issuers. Due to the cluster's leadership trashing between nodes, the migration logic was re-executed several times, partially succeeding each time. While the legacy CA bundle migration logic was written with this in mind, one shortcoming in the chain building code lead us to truncate the ca_chain: by sorting the list of issuers after including non-written issuers (with random IDs), these issuers would occasionally be persisted prior to storage _prior_ to existing CAs with modified chains. The migration code carefully imported the active issuer prior to its parents. However, due to this bug, there was a chance that, if write to the pending parent succeeded but updating the active issuer didn't, the active issuer's ca_chain field would only contain the self-reference and not the parent's reference as well. Ultimately, a workaround of setting and subsequently unsetting a manual chain would force a chain regeneration. In this patch, we simply fix the write ordering: because we need to ensure a stable chain sorting, we leave the sort location in the same place, but delay writing the provided referenceCert to the last position. This is because the reference is meant to be the user-facing action: without transactional write capabilities, other chains may succeed, but if the last user-facing action fails, the user will hopefully retry the action. This will also correct migration, by ensuring the subsequent issuer import will be attempted again, triggering another chain build and only persisting this issuer when all other issuers have also been updated. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remigrate ca_chains to fix any missing issuers In the previous commit, we identified an issue that would occur on legacy issuer migration to the new storage format. This is easy enough to detect for any given mount (by an operator), but automating scanning and remediating all PKI mounts in large deployments might be difficult. Write a new storage migration version to regenerate all chains on upgrade, once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issue to PKI considerations documentation Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Correct %v -> %w in chain building errs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
2022-11-03 15:50:03 +00:00
func TestMigration_OnceChainRebuild(t *testing.T) {
t.Parallel()
ctx := context.Background()
b, s := CreateBackendWithStorage(t)
PKI - Fix order of chain building writes (#17772) * Ensure correct write ordering in rebuildIssuersChains When troubleshooting a recent migration failure from 1.10->1.11, it was noted that some PKI mounts had bad chain construction despite having valid, chaining issuers. Due to the cluster's leadership trashing between nodes, the migration logic was re-executed several times, partially succeeding each time. While the legacy CA bundle migration logic was written with this in mind, one shortcoming in the chain building code lead us to truncate the ca_chain: by sorting the list of issuers after including non-written issuers (with random IDs), these issuers would occasionally be persisted prior to storage _prior_ to existing CAs with modified chains. The migration code carefully imported the active issuer prior to its parents. However, due to this bug, there was a chance that, if write to the pending parent succeeded but updating the active issuer didn't, the active issuer's ca_chain field would only contain the self-reference and not the parent's reference as well. Ultimately, a workaround of setting and subsequently unsetting a manual chain would force a chain regeneration. In this patch, we simply fix the write ordering: because we need to ensure a stable chain sorting, we leave the sort location in the same place, but delay writing the provided referenceCert to the last position. This is because the reference is meant to be the user-facing action: without transactional write capabilities, other chains may succeed, but if the last user-facing action fails, the user will hopefully retry the action. This will also correct migration, by ensuring the subsequent issuer import will be attempted again, triggering another chain build and only persisting this issuer when all other issuers have also been updated. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remigrate ca_chains to fix any missing issuers In the previous commit, we identified an issue that would occur on legacy issuer migration to the new storage format. This is easy enough to detect for any given mount (by an operator), but automating scanning and remediating all PKI mounts in large deployments might be difficult. Write a new storage migration version to regenerate all chains on upgrade, once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issue to PKI considerations documentation Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Correct %v -> %w in chain building errs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
2022-11-03 15:50:03 +00:00
sc := b.makeStorageContext(ctx, s)
// Create a legacy CA bundle that we'll migrate to the new layout. We call
// ToParsedCertBundle just to make sure it works and to populate
// bundle.SerialNumber for us.
bundle := &certutil.CertBundle{
PrivateKeyType: certutil.RSAPrivateKey,
Certificate: migIntCA,
IssuingCA: migRootCA,
CAChain: []string{migRootCA},
PrivateKey: migIntPrivKey,
}
_, err := bundle.ToParsedCertBundle()
require.NoError(t, err)
writeLegacyBundle(t, b, s, bundle)
// Do an initial migration. Ensure we end up at least on version 2.
request := &logical.InitializationRequest{Storage: s}
err = b.initialize(ctx, request)
require.NoError(t, err)
issuerIds, err := sc.listIssuers()
require.NoError(t, err)
require.Equal(t, 2, len(issuerIds))
keyIds, err := sc.listKeys()
require.NoError(t, err)
require.Equal(t, 1, len(keyIds))
logEntry, err := getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry)
require.GreaterOrEqual(t, logEntry.MigrationVersion, 2)
require.GreaterOrEqual(t, latestMigrationVersion, 2)
// Verify the chain built correctly: current should have a CA chain of
// length two.
//
// Afterwards, we mutate these issuers to only point at themselves and
// write back out.
var rootIssuerId issuerID
var intIssuerId issuerID
for _, issuerId := range issuerIds {
issuer, err := sc.fetchIssuerById(issuerId)
require.NoError(t, err)
require.NotNil(t, issuer)
if strings.HasPrefix(issuer.Name, "current-") {
require.Equal(t, 2, len(issuer.CAChain))
require.Equal(t, migIntCA, issuer.CAChain[0])
require.Equal(t, migRootCA, issuer.CAChain[1])
intIssuerId = issuerId
issuer.CAChain = []string{migIntCA}
err = sc.writeIssuer(issuer)
require.NoError(t, err)
} else {
require.Equal(t, 1, len(issuer.CAChain))
require.Equal(t, migRootCA, issuer.CAChain[0])
rootIssuerId = issuerId
}
}
// Reset our migration version back to one, as if this never
// happened...
logEntry.MigrationVersion = 1
err = setLegacyBundleMigrationLog(ctx, s, logEntry)
require.NoError(t, err)
b.pkiStorageVersion.Store(1)
// Re-attempt the migration by reinitializing the mount.
err = b.initialize(ctx, request)
require.NoError(t, err)
newIssuerIds, err := sc.listIssuers()
require.NoError(t, err)
require.Equal(t, 2, len(newIssuerIds))
require.Equal(t, issuerIds, newIssuerIds)
newKeyIds, err := sc.listKeys()
require.NoError(t, err)
require.Equal(t, 1, len(newKeyIds))
require.Equal(t, keyIds, newKeyIds)
logEntry, err = getLegacyBundleMigrationLog(ctx, s)
require.NoError(t, err)
require.NotNil(t, logEntry)
require.Equal(t, logEntry.MigrationVersion, latestMigrationVersion)
// Ensure the chains are correct on the intermediate. By using the
// issuerId saved above, this ensures we didn't change any issuerIds,
// we merely updated the existing issuers.
intIssuer, err := sc.fetchIssuerById(intIssuerId)
require.NoError(t, err)
require.NotNil(t, intIssuer)
require.Equal(t, 2, len(intIssuer.CAChain))
require.Equal(t, migIntCA, intIssuer.CAChain[0])
require.Equal(t, migRootCA, intIssuer.CAChain[1])
rootIssuer, err := sc.fetchIssuerById(rootIssuerId)
require.NoError(t, err)
require.NotNil(t, rootIssuer)
require.Equal(t, 1, len(rootIssuer.CAChain))
require.Equal(t, migRootCA, rootIssuer.CAChain[0])
}
func TestExpectedOpsWork_PreMigration(t *testing.T) {
t.Parallel()
ctx := context.Background()
b, s := CreateBackendWithStorage(t)
// Reset the version the helper above set to 1.
b.pkiStorageVersion.Store(0)
require.True(t, b.useLegacyBundleCaStorage(), "pre migration we should have been told to use legacy storage.")
bundle := genCertBundle(t, b, s)
json, err := logical.StorageEntryJSON(legacyCertBundlePath, bundle)
require.NoError(t, err)
err = s.Put(ctx, json)
require.NoError(t, err)
// generate role
resp, err := b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.UpdateOperation,
Path: "roles/allow-all",
Storage: s,
Data: map[string]interface{}{
"allow_any_name": "true",
"no_store": "false",
},
MountPoint: "pki/",
})
require.NoError(t, err, "error from creating role")
require.Nil(t, resp, "got non-nil response object from creating role")
// List roles
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.ListOperation,
Path: "roles",
Storage: s,
MountPoint: "pki/",
})
require.NoError(t, err, "error from listing roles")
require.NotNil(t, resp, "got nil response object from listing roles")
require.False(t, resp.IsError(), "got error response from listing roles: %#v", resp)
require.Contains(t, resp.Data["keys"], "allow-all", "failed to list our roles")
// Read roles
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.ReadOperation,
Path: "roles/allow-all",
Storage: s,
MountPoint: "pki/",
})
require.NoError(t, err, "error from reading role")
require.NotNil(t, resp, "got nil response object from reading role")
require.False(t, resp.IsError(), "got error response from reading role: %#v", resp)
require.NotEmpty(t, resp.Data, "data map should not have been empty of reading role")
// Issue a cert from our legacy bundle.
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.UpdateOperation,
Path: "issue/allow-all",
Storage: s,
Data: map[string]interface{}{
"common_name": "test.com",
"ttl": "60s",
},
MountPoint: "pki/",
})
require.NoError(t, err, "error issue on allow-all")
require.NotNil(t, resp, "got nil response object from issue allow-all")
require.False(t, resp.IsError(), "got error response from issue on allow-all: %#v", resp)
serialNum := resp.Data["serial_number"].(string)
require.NotEmpty(t, serialNum)
// Make sure we can list
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.ListOperation,
Path: "certs",
Storage: s,
MountPoint: "pki/",
})
require.NoError(t, err, "error listing certs")
require.NotNil(t, resp, "got nil response object from listing certs")
require.False(t, resp.IsError(), "got error response from listing certs: %#v", resp)
require.Contains(t, resp.Data["keys"], serialNum, "failed to list our cert")
// Revoke the cert now.
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.UpdateOperation,
Path: "revoke",
Storage: s,
Data: map[string]interface{}{
"serial_number": serialNum,
},
MountPoint: "pki/",
})
require.NoError(t, err, "error revoking cert")
require.NotNil(t, resp, "got nil response object from revoke cert")
require.False(t, resp.IsError(), "got error response from revoke cert: %#v", resp)
// Check our CRL includes the revoked cert.
resp = requestCrlFromBackend(t, s, b)
crl := parseCrlPemBytes(t, resp.Data["http_raw_body"].([]byte))
requireSerialNumberInCRL(t, crl, serialNum)
// Set CRL config
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.UpdateOperation,
Path: "config/crl",
Storage: s,
Data: map[string]interface{}{
"expiry": "72h",
"disable": "false",
},
MountPoint: "pki/",
})
require.NoError(t, err, "error setting CRL config")
require.Nil(t, resp, "got non-nil response setting CRL config")
// Set URL config
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.UpdateOperation,
Path: "config/urls",
Storage: s,
Data: map[string]interface{}{
"ocsp_servers": []string{"https://localhost:8080"},
},
MountPoint: "pki/",
})
Allow templating cluster-local AIA URIs (#18199) * Allow templating of cluster-local AIA URIs This adds a new configuration path, /config/cluster, which retains cluster-local configuration. By extending /config/urls and its issuer counterpart to include an enable_templating parameter, we can allow operators to correctly identify the particular cluster a cert was issued on, and tie its AIA information to this (cluster, issuer) pair dynamically. Notably, this does not solve all usage issues around AIA URIs: the CRL and OCSP responder remain local, meaning that some merge capability is required prior to passing it to other systems if they use CRL files and must validate requests with certs from any arbitrary PR cluster. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add documentation about templated AIAs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * AIA URIs -> AIA URLs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * issuer.AIAURIs might be nil Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow non-nil response to config/urls Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Always validate URLs on config update Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Ensure URLs lack templating parameters Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Review feedback Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
2022-12-05 15:38:26 +00:00
requireSuccessNonNilResponse(t, resp, err)
// Make sure we can fetch the old values...
for _, path := range []string{"ca/pem", "ca_chain", "cert/" + serialNum, "cert/ca", "cert/crl", "cert/ca_chain", "config/crl", "config/urls"} {
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.ReadOperation,
Path: path,
Storage: s,
MountPoint: "pki/",
})
require.NoError(t, err, "error reading cert %s", path)
require.NotNil(t, resp, "got nil response object from reading cert %s", path)
require.False(t, resp.IsError(), "got error response from reading cert %s: %#v", path, resp)
}
// Sign CSR
_, csr := generateTestCsr(t, certutil.ECPrivateKey, 224)
for _, path := range []string{"sign/allow-all", "root/sign-intermediate", "sign-verbatim"} {
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.UpdateOperation,
Path: path,
Storage: s,
Data: map[string]interface{}{
"csr": csr,
},
MountPoint: "pki/",
})
require.NoError(t, err, "error signing csr from path %s", path)
require.NotNil(t, resp, "got nil response object from path %s", path)
require.NotEmpty(t, resp.Data, "data map response was empty from path %s", path)
}
// Sign self-issued
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.UpdateOperation,
Path: "root/sign-self-issued",
Storage: s,
Data: map[string]interface{}{
"certificate": csr,
},
MountPoint: "pki/",
})
require.NoError(t, err, "error signing csr from path root/sign-self-issued")
require.NotNil(t, resp, "got nil response object from path root/sign-self-issued")
require.NotEmpty(t, resp.Data, "data map response was empty from path root/sign-self-issued")
// Delete Role
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.DeleteOperation,
Path: "roles/allow-all",
Storage: s,
MountPoint: "pki/",
})
require.NoError(t, err, "error deleting role")
require.Nil(t, resp, "got non-nil response object from deleting role")
// Delete Root
resp, err = b.HandleRequest(context.Background(), &logical.Request{
Operation: logical.DeleteOperation,
Path: "root",
Storage: s,
MountPoint: "pki/",
})
require.NoError(t, err, "error deleting root")
require.NotNil(t, resp, "got nil response object from deleting root")
require.NotEmpty(t, resp.Warnings, "expected warnings set on delete root")
///////////////////////////////
// Legacy calls we expect to fail when in migration mode
///////////////////////////////
requireFailInMigration(t, b, s, logical.UpdateOperation, "config/ca")
requireFailInMigration(t, b, s, logical.UpdateOperation, "intermediate/generate/internal")
requireFailInMigration(t, b, s, logical.UpdateOperation, "intermediate/set-signed")
requireFailInMigration(t, b, s, logical.UpdateOperation, "root/generate/internal")
///////////////////////////////
// New apis should be unavailable
///////////////////////////////
requireFailInMigration(t, b, s, logical.ListOperation, "issuers")
requireFailInMigration(t, b, s, logical.UpdateOperation, "issuers/generate/root/internal")
requireFailInMigration(t, b, s, logical.UpdateOperation, "issuers/generate/intermediate/internal")
requireFailInMigration(t, b, s, logical.UpdateOperation, "issuers/import/cert")
requireFailInMigration(t, b, s, logical.ReadOperation, "issuer/default/json")
requireFailInMigration(t, b, s, logical.ReadOperation, "issuer/default/crl/pem")
requireFailInMigration(t, b, s, logical.UpdateOperation, "issuer/test-role")
// The following calls work as they are shared handlers with existing paths.
// requireFailInMigration(t, b, s, logical.UpdateOperation, "issuer/default/issue/test-role")
// requireFailInMigration(t, b, s, logical.UpdateOperation, "issuer/default/sign/test-role")
// requireFailInMigration(t, b, s, logical.UpdateOperation, "issuer/default/sign-verbatim")
// requireFailInMigration(t, b, s, logical.UpdateOperation, "issuer/default/sign-self-issued")
requireFailInMigration(t, b, s, logical.UpdateOperation, "root/replace")
requireFailInMigration(t, b, s, logical.UpdateOperation, "root/rotate/internal")
requireFailInMigration(t, b, s, logical.UpdateOperation, "intermediate/cross-sign")
requireFailInMigration(t, b, s, logical.UpdateOperation, "config/issuers")
requireFailInMigration(t, b, s, logical.ReadOperation, "config/issuers")
requireFailInMigration(t, b, s, logical.ListOperation, "keys")
requireFailInMigration(t, b, s, logical.UpdateOperation, "keys/generate/internal")
requireFailInMigration(t, b, s, logical.UpdateOperation, "keys/import")
requireFailInMigration(t, b, s, logical.ReadOperation, "key/default")
requireFailInMigration(t, b, s, logical.UpdateOperation, "config/keys")
requireFailInMigration(t, b, s, logical.ReadOperation, "config/keys")
}
// requireFailInMigration validate that we fail the operation with the appropriate error message to the end-user
func requireFailInMigration(t *testing.T, b *backend, s logical.Storage, operation logical.Operation, path string) {
resp, err := b.HandleRequest(context.Background(), &logical.Request{
Operation: operation,
Path: path,
Storage: s,
MountPoint: "pki/",
})
require.NoError(t, err, "error from op:%s path:%s", operation, path)
require.NotNil(t, resp, "got nil response from op:%s path:%s", operation, path)
require.True(t, resp.IsError(), "error flag was not set from op:%s path:%s resp: %#v", operation, path, resp)
require.Contains(t, resp.Error().Error(), "migration has completed",
"error message did not contain migration test for op:%s path:%s resp: %#v", operation, path, resp)
}
PKI - Fix order of chain building writes (#17772) * Ensure correct write ordering in rebuildIssuersChains When troubleshooting a recent migration failure from 1.10->1.11, it was noted that some PKI mounts had bad chain construction despite having valid, chaining issuers. Due to the cluster's leadership trashing between nodes, the migration logic was re-executed several times, partially succeeding each time. While the legacy CA bundle migration logic was written with this in mind, one shortcoming in the chain building code lead us to truncate the ca_chain: by sorting the list of issuers after including non-written issuers (with random IDs), these issuers would occasionally be persisted prior to storage _prior_ to existing CAs with modified chains. The migration code carefully imported the active issuer prior to its parents. However, due to this bug, there was a chance that, if write to the pending parent succeeded but updating the active issuer didn't, the active issuer's ca_chain field would only contain the self-reference and not the parent's reference as well. Ultimately, a workaround of setting and subsequently unsetting a manual chain would force a chain regeneration. In this patch, we simply fix the write ordering: because we need to ensure a stable chain sorting, we leave the sort location in the same place, but delay writing the provided referenceCert to the last position. This is because the reference is meant to be the user-facing action: without transactional write capabilities, other chains may succeed, but if the last user-facing action fails, the user will hopefully retry the action. This will also correct migration, by ensuring the subsequent issuer import will be attempted again, triggering another chain build and only persisting this issuer when all other issuers have also been updated. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Remigrate ca_chains to fix any missing issuers In the previous commit, we identified an issue that would occur on legacy issuer migration to the new storage format. This is easy enough to detect for any given mount (by an operator), but automating scanning and remediating all PKI mounts in large deployments might be difficult. Write a new storage migration version to regenerate all chains on upgrade, once. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add issue to PKI considerations documentation Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Correct %v -> %w in chain building errs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
2022-11-03 15:50:03 +00:00
// Keys to simulate an intermediate CA mount with also-imported root (parent).
const (
migIntPrivKey = `-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
`
migIntCA = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
migRootCA = `-----BEGIN CERTIFICATE-----
MIIDFTCCAf2gAwIBAgIURDTnXp8u78jWMe770Jj6Ac1paxkwDQYJKoZIhvcNAQEL
BQAwEjEQMA4GA1UEAxMHUm9vdCBYMTAeFw0yMjExMDIxMjI0NTVaFw0yMjEyMDQx
MjI1MjRaMBIxEDAOBgNVBAMTB1Jvb3QgWDEwggEiMA0GCSqGSIb3DQEBAQUAA4IB
DwAwggEKAoIBAQC/+dh/o1qKTOua/OkHRMIvHiyBxjjoqrLqFSBYhjYKs+alA0qS
lLVzNqIKU8jm3fT73orx7yk/6acWaEYv/6owMaUn51xwS3gQhTHdFR/fLJwXnu2O
PZNqAs6tjAM3Q08aqR0qfxnjDvcgO7TOWSyOvVT2cTRK+uKYzxJEY52BDMUbp+iC
WJdXca9UwKRzi2wFqGliDycYsBBt/tr8tHSbTSZ5Qx6UpFrKpjZn+sT5KhKUlsdd
BYFmRegc0wXq4/kRjum0oEUigUMlHADIEhRasyXPEKa19sGP8nAZfo/hNOusGhj7
z7UPA0Cbe2uclpYPxsKgvcqQmgKugqKLL305AgMBAAGjYzBhMA4GA1UdDwEB/wQE
AwIBBjAPBgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBTDUTZC6M7LSITYVwnn4vlp
2kAKWzAfBgNVHSMEGDAWgBTDUTZC6M7LSITYVwnn4vlp2kAKWzANBgkqhkiG9w0B
AQsFAAOCAQEAu7qdM1Li6V6iDCPpLg5zZReRtcxhUdwb5Xn4sDa8GJCy35f1voew
n0TQgM3Uph5x/djCR/Sj91MyAJ1/Q1PQQTyKGyUjSHvkcOBg628IAnLthn8Ua1fL
oQC/F/mlT1Yv+/W8eNPtD453/P0z8E0xMT5K3kpEDW/6K9RdHZlDJMW/z3UJ+4LN
6ONjIBmgffmLz9sVMpgCFyL7+w3W01bGP7w5AfKj2duoVG/Ekf2yUwmm6r9NgTQ1
oke0ShbZuMocwO8anq7k0R42FoluH3ipv9Qzzhsy+KdK5/fW5oqy1tKFaZsc67Q6
0UmD9DiDpCtn2Wod3nwxn0zW5HvDAWuDwg==
-----END CERTIFICATE-----
`
)