26 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Steven Clark
|
96f1443265
|
Fix various trivial warnings from staticcheck in the PKI plugin (#16946)
* Fix up simple warnings in production code * Address warnings from static check in the PKI test classes |
||
|
Alexander Scheel
|
a5fafd8163
|
Add ability to perform automatic tidy operations (#16900)
* Add ability to perform automatic tidy operations This enables the PKI secrets engine to allow tidy to be started periodically by the engine itself, avoiding the need for interaction. This operation is disabled by default (to avoid load on clusters which don't need tidy to be run) but can be enabled. In particular, a default tidy configuration is written (via /config/auto-tidy) which mirrors the options passed to /tidy. Two additional parameters, enabled and interval, are accepted, allowing auto-tidy to be enabled or disabled and controlling the interval (between successful tidy runs) to attempt auto-tidy. Notably, a manual execution of tidy will delay additional auto-tidy operations. Status is reported via the existing /tidy-status endpoint. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add documentation on auto-tidy Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for auto-tidy Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Prevent race during parallel testing We modified the RollbackManager's execution window to allow more faithful testing of the periodicFunc. However, the TestAutoRebuild and the new TestAutoTidy would then race against each other for modifying the period and creating their clusters (before resetting to the old value). This changeset adds a lock around this, preventing the races. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Use tidyStatusLock to gate lastTidy time This prevents a data race between the periodic func and the execution of the running tidy. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add read lock around tidyStatus gauges When reading from tidyStatus for computing gauges, since the underlying values aren't atomics, we really should be gating these with a read lock around the status access. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
f34a93a560 |
Clean up behavior of If-Modified-Since header (#16929)
* Issuer renames should invalidate CRL cache times When an issuer is renamed (or rather, two issuers' names are swapped in quick succession), this is akin to the earlier identified default issuer update condition. So, when any issuer is updated, go ahead and trigger the invalidation logic. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix handling of delta CRL If-Modified-Since The If-Modified-Since PR was proposed prior to the Delta CRL changes and thus didn't take it into account. This follow-up commit fixes that, addressing If-Modified-Since semantics for delta CRL fetching and ensuring an accurate number is stored. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Gabriel Santos
|
ff5ff849fd
|
PKI - Honor header If-Modified-Since if present (#16249)
* honor header if-modified-since if present * pathGetIssuerCRL first version * check if modified since for CA endpoints * fix date comparison for CA endpoints * suggested changes and refactoring * add writeIssuer to updateDefaultIssuerId and fix error * Move methods out of storage.go into util.go For the most part, these take a SC as param, but aren't directly storage relevant operations. Move them out of storage.go as a result. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Use UTC timezone for storage Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rework path_fetch for better if-modified-since handling Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Invalidate all issuers, CRLs on default write When the default is updated, access under earlier timestamps will not work as we're unclear if the timestamp is for this issuer or a previous issuer. Thus, we need to invalidate the CRL and both issuers involved (previous, next) by updating their LastModifiedTimes. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for If-Modified-Since Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Correctly invalidate default issuer changes When the default issuer changes, we'll have to mark the invalidation on PR secondary clusters, so they know to update their CRL mapping as well. The swapped issuers will have an updated modification time (which will eventually replicate down and thus be correct), but the CRL modification time is cluster-local information and thus won't be replicated. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * make fmt Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor sendNotModifiedResponseIfNecessary Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add documentation on if-modified-since Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Co-authored-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
e03fb14be4
|
Support for generating Delta CRLs (#16773)
* Allow generation of up-to-date delta CRLs While switching to periodic rebuilds of CRLs alleviates the constant rebuild pressure on Vault during times of high revocation, the CRL proper becomes stale. One response to this is to switch to OCSP, but not every system has support for this. Additionally, OCSP usually requires connectivity and isn't used to augment a pre-distributed CRL (and is instead used independently). By generating delta CRLs containing only new revocations, an existing CRL can be supplemented with newer revocations without requiring Vault to rebuild all complete CRLs. Admins can periodically fetch the delta CRL and add it to the existing CRL and applications should be able to support using serials from both. Because delta CRLs are emptied when the next complete CRL is rebuilt, it is important that applications fetch the delta CRL and correlate it to their complete CRL; if their complete CRL is older than the delta CRL's extension number, applications MUST fetch the newer complete CRL to ensure they have a correct combination. This modifies the revocation process and adds several new configuration options, controlling whether Delta CRLs are enabled and when we'll rebuild it. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for delta CRLs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add documentation on delta CRLs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Address review feedback: fix several bugs Thanks Steve! Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Correctly invoke periodic func on active nodes We need to ensure we read the updated config (in case of OCSP request handling on standby nodes), but otherwise want to avoid CRL/DeltaCRL re-building. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Steven Clark
|
34ff0154e8
|
Add ocsp_expiry configuration field to PKI crl config (#16888)
* Add ocsp_expiry configuration field to PKI crl config - Add a new configurable duration field to the crl configuration to allow operator control of how long an OCSP response can be cached for. - This is useful for how long a server like NGINX/Apache is allowed to cache the response for OCSP stapling. - A value of 0 means no one should cache the response. - Address an issue discovered that we did not upgrade existing crl configurations properly * PR feedback |
||
|
Alexander Scheel
|
6089d2e247
|
Don't allow crl-signing issuer usage without CRLSign KeyUsage (#16865)
* Allow correct importing of certs without CRL KU When Vault imports certificates without KU for CRLSign, we shouldn't provision CRLUsage on the backing issuer; otherwise, we'll attempt to build CRLs and Go will cause us to err out. This change makes it clear (at issuer configuration time) that we can't possibly support this operation and hopefully prevent users from running into the more cryptic Go error. Note that this does not apply for OCSP EKU: the EKU exists, per RFC 6960 Section 2.6 OCSP Signature Authority Delegation, to allow delegation of OCSP signing to a child certificate. This EKU is not necessary on the issuer itself, and generally assumes issuers are allowed to issue OCSP responses regardless of KU/EKU. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add docs to clarify issue with import, CRL usage Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Update website/content/api-docs/secret/pki.mdx * Add additional test assertion Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
231f422822
|
Finish refactor to remove global crlLifetime (#16835)
Previously we used the global backend-set crlLifetime as a default value. However, this was refactored into a new defaultCrlConfig instead, which we should reply with when the CRL configuration has not been set yet. In particular, the 72h default expiry (and new 12h auto-rebuild grace period) was added and made explicit. This fixes the broken UI test. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
cacb23bda6
|
Enable periodic, automatic rebuilding of CRLs (#16762)
* Allow automatic rebuilding of CRLs
When enabled, periodic rebuilding of CRLs will improve PKI mounts in two
way:
1. Reduced load during periods of high (new) revocations, as the CRL
isn't rebuilt after each revocation but instead on a fixed schedule.
2. Ensuring the CRL is never stale as long as the cluster remains up,
by checking for next CRL expiry and regenerating CRLs before that
happens. This may increase cluster load when operators have large
CRLs that they'd prefer to let go stale, rather than regenerating
fresh copies.
In particular, we set a grace period before expiration of CRLs where,
when the periodic function triggers (about once a minute), we check
upcoming CRL expirations and check if we need to rebuild the CRLs.
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Add changelog entry
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Add documentation on periodic rebuilding
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Allow modification of rollback period for testing
When testing backends that use the periodic func, and specifically,
testing the behavior of that periodic func, waiting for the usual 1m
interval can lead to excessively long test execution. By switching to a
shorter period--strictly for testing--we can make these tests execute
faster.
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Add tests for auto-rebuilding of CRLs
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Remove non-updating getConfig variant
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
* Avoid double reload of config
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
|
||
|
Steven Clark
|
e024324c34
|
Add an OCSP responder to Vault's PKI plugin (#16723)
* Refactor existing CRL function to storage getRevocationConfig * Introduce ocsp_disable config option in config/crl * Introduce OCSPSigning usage flag on issuer * Add ocsp-request passthrough within lower layers of Vault * Add OCSP responder to Vault PKI * Add API documentation for OCSP * Add cl * Revert PKI storage migration modifications for OCSP * Smaller PR feedback items - pki.mdx doc update - parens around logical.go comment to indicate DER encoded request is related to OCSP and not the snapshots - Use AllIssuers instead of writing them all out - Drop zero initialization of crl config's Disable flag if not present - Upgrade issuer on the fly instead of an initial migration * Additional clean up backing out the writeRevocationConfig refactoring * Remove Dirty issuer flag and update comment about not writing upgrade to storage * Address PR feedback and return Unknown response when mismatching issuer * make fmt * PR Feedback. * More PR feedback - Leverage ocsp response constant - Remove duplicate errors regarding unknown issuers |
||
|
Steven Clark
|
da7fd8f639
|
Migrate existing PKI mounts that only contains a key (#16813)
* Migrate existing PKI mounts that only contains a key - We missed testing a use-case of the migration that someone has a PKI mount point that generated a CSR but never called set-signed back on that mount point so it only contains a key. * Add cl |
||
|
Alexander Scheel
|
49fd772fcc
|
Add per-issuer AIA URI information to PKI secrets engine (#16563)
* Add per-issuer AIA URI information Per discussion on GitHub with @maxb, this allows issuers to have their own copy of AIA URIs. Because each issuer has its own URLs (for CA and CRL access), its necessary to mint their issued certs pointing to the correct issuer and not to the global default issuer. For anyone using multiple issuers within a mount, this change allows the issuer to point back to itself via leaf's AIA info. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add documentation on per-issuer AIA info Also add it to the considerations page as something to watch out for. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for per-issuer AIA information Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor AIA setting on the issuer This introduces a common helper per Steve's suggestion. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error messages w.r.t. AIA naming Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Clarify error messages regarding AIA URLs This clarifies which request parameter the invalid URL is contained in, disambiguating the sometimes ambiguous usage of AIA, per suggestion by Max. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Rename getURLs -> getGlobalAIAURLs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Correct AIA acronym expansion word orders Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix bad comment suggesting re-generating roots Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add two entries to URL tests Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
0c22c76907
|
Allow marking issuers as revoked (#16621)
* Allow marking issuers as revoked This allows PKI's issuers to be considered revoked and appear on each others' CRLs. We disable issuance (via removing the usage) and prohibit modifying the usage via the regular issuer management interface. A separate endpoint is necessary because issuers (especially if signed by a third-party CA using incremental serial numbers) might share a serial number (e.g., an intermediate under cross-signing might share the same number as an external root or an unrelated intermediate). When the next CRL rebuild happens, this issuer will then appear on others issuers CRLs, if they validate this issuer's certificate. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add documentation on revoking issuers Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for issuer revocation semantics Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Notate that CRLs will be rebuilt Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Fix timestamp field from _utc -> to _rfc3339 Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Ensure serial-based accesses shows as revoked Thanks Kit! Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning when revoking default issuer Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
e388cfec64
|
Add BYOC-based revocation to PKI secrets engine (#16564)
* Refactor serial creation to common helper Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add BYOC revocation to PKI mount This allows operators to revoke certificates via a PEM blob passed to Vault. In particular, Vault verifies the signature on the certificate from an existing issuer within the mount, ensuring that one indeed issued this certificate. The certificate is then added to storage and its serial submitted for revocation. This allows certificates generated with no_store=true to be submitted for revocation afterwards, given a full copy of the certificate. As a consequence, all roles can now safely move to no_store=true (if desired for performance) and revocation can be done on a case-by-case basis. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add docs on BYOC revocation Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add PEM length check to BYOC import Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for BYOC Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Guard against legacy CA bundle usage This prevents usage of the BYOC cert on a hybrid 1.10/1.12 cluster with an non-upgraded CA issuer bundle. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
8acbf7f480
|
Add PSS support to PKI Secrets Engine (#16519)
* Add PSS signature support to Vault PKI engine Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Use issuer's RevocationSigAlg for CRL signing We introduce a new parameter on issuers, revocation_signature_algorithm to control the signature algorithm used during CRL signing. This is because the SignatureAlgorithm value from the certificate itself is incorrect for this purpose: a RSA root could sign an ECDSA intermediate with say, SHA256WithRSA, but when the intermediate goes to sign a CRL, it must use ECDSAWithSHA256 or equivalent instead of SHA256WithRSA. When coupled with support for PSS-only keys, allowing the user to set the signature algorithm value as desired seems like the best approach. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add use_pss, revocation_signature_algorithm docs Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add PSS to signature role issuance test matrix Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow roots to self-identify revocation alg When using PSS support with a managed key, sometimes the underlying device will not support PKCS#1v1.5 signatures. This results in CRL building failing, unless we update the entry's signature algorithm prior to building the CRL for the new root. With a RSA-type key and use_pss=true, we use the signature bits value to decide which hash function to use for PSS support. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add clearer error message on failed import When CRL building fails during cert/key import, due to PSS failures, give a better indication to the user that import succeeded its just CRL building that failed. This tells them the parameter to adjust on the issuer and warns that CRL building will fail until this is fixed. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add case insensitive SigAlgo matching Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Convert UsePSS back to regular bool Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor PSS->certTemplate into helper function Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Proper string output on rev_sig_alg display Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Copy root's SignatureAlgorithm for CRL building Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
d353245af3
|
Remove structs, mapstructure from PKI storage (#16190)
structs and mapstructure aren't really used within Vault much any more, so we should start removing them. Luckily there was only one externally accessible place where structs was used (AIA URLs config) so that was easy to remove. The rest is mostly structure tag changes. path_roles_tests.go relied on mapstructure in some places that broke, but otherwise backend_test.go hasn't yet been modified to remove the dependency on mapstructure. These didn't break as the underlying CertBundle didn't get mapstructure support removed (as its in the SDK). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
920ec37b21
|
Refactor PKI storage calls to take a shared struct (#16019)
This will allow us to refactor the storage functions to take additional parameters (or backend-inferred values) in the future. In particular, as we look towards adding a storage cache layer, we'll need to add this to the backend, which is now accessible from all storage functions. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Steven Clark
|
0b6781e3b9
|
PKI: Only set issuers with an associated key as default on import (#15754)
- Do not set the first issuer we attempt to import as the default issuer unless it has a corresponding key. - Add the ability to set a default issuer if none exist and we import it's corresponding key after the fact. - Add a warning to an end-user if we imported multiple issuers with keys and we choose one of them as the default value. |
||
|
kitography
|
93a1f62567
|
Vault 6122 pki role issuer name validation (#15473)
* Add a warning when Issuing Certificate set on a role does not resolve. * Ivanka's requests - add a warning on deleting issuer or changing it's name. * reduce number of roles to iterate through; only verify roles after migration. ignore roles deleted behind our back. |
||
|
Steven Clark
|
7bc9cd2867
|
Protect against key and issuer name re-use (#15481)
* Protect against key and issuer name re-use - While importing keys and issuers verify that the provided name if any has not been used by another key that we did not match against. - Validate an assumption within the key import api, that we were provided a single key - Add additional tests on the new key generation and key import handlers. * Protect key import api end-users from using "default" as a name - Do not allow end-users to provide the value of default as a name for key imports as that would lead to weird and wonderful behaviors to the end-user. * Add missing api-docs for PKI key import |
||
|
Steven Clark
|
9607c5be97
|
Use backendUUID instead of mount points for managed keys (OSS) (#15441)
- Remove all references to mount point within PKI - Leverage the mount's backend UUID now instead of a mount point for all managed key lookups. |
||
|
Steven Clark
|
24b168b250
|
Fix revoking certificates in pre-migration state within PKI (#15360)
* Address issues with revoke operations pre-migration of PKI issuers - Leverage the legacyBundleShimID though out the path of CRL building when legacy storage mode is active. - Instead of having multiple locations without a lock checking for the useLegacyBundleCaStorage flag is set, check it once and then use the same issuerId everywhere - Address some locking issues that might lead to a bad read/write when switching from legacy to non-legacy mode on startup and post-migration * Add test suite for PKI apis pre-migration to new issuer storage format - Add tests that validate all apis work as expected in pre-migration mode - Add tests for apis that we don't expect to work, they should return a migration related error message - Add some missing validations on various new apis. |
||
|
Steven Clark
|
76cf103fb4
|
Use Get lookup within PKI resolveXXX functions instead of list iterations (#15322)
- Leverage a Get lookup operation to see if our reference field is a UUID instead of listing all key/issuers and iterating over the list. - This should be faster and we get a cached lookup possibly if it was a UUID entry that we previously loaded. - Address some small feedback about migration wording as well. |
||
|
Steven Clark
|
92dad0e0c0
|
Compare issuer certificates using cert, signature algo and signature fields (#15285)
* Move existing test helpers into a new test_helpers.go file within PKI * Compare issuer certificates by cert, signature algo and signature - Instead of comparing the strings of a certificate, instead leverage the Go Raw attribute within a parsed certificate to compare. The Raw attribute is a byte array of an ASN.1 DER containing the cert, signature algo and signature. - Rework a bit of the importIssuers function as well to fail checks on the inbound issuer earlier as well as load keys/issuers just before we need them |
||
|
Alexander Scheel
|
575099d085
|
Prevent revoking all issuer certificates (#15289)
* Prevent revocation of issuers using revokeCert Similar to the existing behavior, we'll prevent the revocation of existing issuer certificates from the existing /revoke/:serial endpoint for now. This is because a serial number alone is not enough information (in the worst case) to precisely identify an issuer (as intermediates signed by two separate external (e.g., OpenSSL) CAs using incremental serial numbers might have the same serial number). Additionally, we fix revoking certs on performance secondary clusters, when they've not yet been migrated. In a separate change, we'll open up a separate code path to revoke issuers, ensuring we know exactly which issuer is revoked (and which CRL it should belong on at time of revocation). Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add warning when revoking expired cert This prevents confusion when a nil response (with no revocation info) is returned; requesters are informed that the specified certificate has already expired. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> |
||
|
Alexander Scheel
|
4f6c6ac317
|
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> |