Commit graph

71 commits

Author SHA1 Message Date
Kit Haines f2adbb3e47
Basics of Cert-Count Non-Locking Telemetry (#16676)
Basics of Cert-Count Telemetry, changelog,  "best attempt" slice to capture (and test for) duplicates, Move sorting of possibleDoubleCountedRevokedSerials to after compare of entries. Add values to counter when still initializing.
Set lists to nil after use, Fix atomic2 import, Delay reporting metrics until after deduplication has completed, 
The test works now, Move string slice to helper function; Add backendUUID to gauge name.
2022-09-20 10:32:20 -07:00
Kit Haines 71d9c33802
Add "plumbing" for surfacing warnings, and warning overwriting ttl (#17073)
* Add "plumbing" for surfacing warnings, and add warning about TTL > maxTTL when issuing a cert.
2022-09-15 12:38:33 -07:00
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
2022-08-31 16:25:14 -04:00
Steven Clark b21e06b917
Add remove_roots_from_chain to sign and issue pki apis (#16935)
* Add remove_roots_from_chain flag to sign and issue pki apis

 - Add a new flag to allow end-users to control if we return the
   root/self-signed CA certificate within the list of certificates in
   ca_chain field on issue and sign api calls.

* Add cl

* PR feedback
2022-08-31 09:51:26 -04:00
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>
2022-08-03 12:42:24 -04:00
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>
2022-06-29 12:00:44 -04:00
Alexander Scheel eeb4029eb1
Add signature_bits to sign-intermediate, sign-verbatim (#16124)
* Add signature_bits to sign-intermediate

This endpoint was lacking the signature_bits field like all the other
endpoints. Notably, in #15478, the ability to customize the intermediate
CSR's signature bits was removed without checking for the ability to
customize the final (root-signed) intermediate certificate's value.

This adds in that missing ability, bringing us parity with root
generation and role-based signing.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add signature_bits to sign-verbatim

This endpoint was also lacking the signature_bits field, preventing
other signature hash functions from being utilized here.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add changelog

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
2022-06-23 14:07:27 -04:00
Alexander Scheel 4e6a9741ee
Add explicit cn_validations field to PKI Roles (#15996)
* Add cn_validations PKI Role parameter

This new parameter allows disabling all validations on a common name,
enabled by default on sign-verbatim and issuer generation options.

Presently, the default behavior is to allow either an email address
(denoted with an @ in the name) or a hostname to pass validation.
Operators can restrict roles to just a single option (e.g., for email
certs, limit CNs to have strictly email addresses and not hostnames).

By setting the value to `disabled`, CNs of other formats can be accepted
without validating their contents against our minimal correctness checks
for email/hostname/wildcard that we typically apply even when broad
permissions (allow_any_name=true, enforce_hostnames=false, and
allow_wildcard_certificates=true) are granted on the role.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Update PKI tests for cn_validation support

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add PKI API documentation on cn_validations

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add changelog

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
2022-06-16 06:53:27 -07:00
Alexander Scheel 3166d1ff78
Allow issuer/:issuer_ref/sign-verbatim/:role, add error on missing role (#15543)
* Allow role-based sign-verbatim with chosen issuer

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add warning with missing requested verbatim role

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add changelog

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Update builtin/logical/pki/backend.go

Co-authored-by: Steven Clark <steven.clark@hashicorp.com>

Co-authored-by: Steven Clark <steven.clark@hashicorp.com>
2022-05-23 13:09:18 -04:00
Gabriel Santos 23e67be230
pki/sign-verbatim uses role not before duration (#15429)
* Use "not_before_duration" fiueld from role if above 0

* 'test' and update docs

* changelog file

* Requested changes - improved test and better description to changelog

* changelog description:

* update to ttl and not_before_duration API docs
2022-05-16 16:15:18 -04:00
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>
2022-05-11 12:42:28 -04:00
Steven Clark 1358134801
PKI: Add missing default cases within switch statements (#14661)
* Misc PKI code fixes.

 - Harden the code base a bit adding default's to switch statements
   to various error handlers and processing statements.
 - Fixup some error messages to include proper values we support.

* Additional default case missing within PKI

* Fix typo in PKI error message
2022-03-23 15:19:56 -04:00
Alexander Scheel 11c5068533
Add role parameter to restrict issuance of wildcard certificates (#14238)
* Add new AllowWildcardCertificate field to PKI role

This field allows the PKI role to control whether or not issuance of
wildcard certificates are allowed. We default (both on migration and
new role creation) to the less secure true value for backwards
compatibility with existing Vault versions.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Refactor sanitizedName to reducedName

Per comment, this variable name was confusing during the reproduction
and subsequent fix of the earlier vulnerability and associated bug
report. Because the common name isn't necessarily _sanitized_ in any way
(and indeed must be considered in relation to other parts or the whole),
but portions of the entire name are removed, reducedName appears to make
the most sense.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Enforce AllowWildcardCertificates during issuance

This commit adds the bulk of correctly validating wildcard certificate
Common Names during issuance according to RFC 6125 Section 6.4.3
semantics. As part of this, support for RFC 2818-conforming wildcard
certificates (wherein there are almost no restrictions on issuance) has
been removed.

Note that this flag does take precedence over AllowAnyName, giving a
little more safety in wildcard issuance in this case.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Update test cases to conform with RFC 6125

Test cases 19, 70+71, and 83+84 didn't conform with the RFC 6125, and so
should've been rejected under strict conformance. For 70+71 and 83+84,
we previously conditioned around the value of AllowSubdomains (allowing
issuance when true), but they likely should've been rejected either way.

Additionally, update the notes about globs matching wildcard
certificates to notate this is indeed the case.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Check AllowWildcardCertifciates in issuance tests

This allows for regression tests to cover the new
AllowWildcardCertificate conditional. We add additional test cases
ensuring that wildcard issuance is properly forbidden in all relevant
scenarios, while allowing the existing test cases to validate that
wildcard status doesn't affect non-wildcard certificates.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add Wildcard allowance during signing operations

When using sign-verbatim, sign-intermediate, or getting certificate
generation parameters, set AllowWildcardCertificates to mirror existing
policies.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add changelog entry

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
2022-02-24 08:41:56 -05:00
Steven Clark c1e80aeff9
Add checks for other error types within the PKI plugin (#14195)
* Add checks for other error types within the PKI plugin

 - The PKI plugin assumes the code it is calling always returns an error
   of type errutil.UserError or errutil.InternalError. While I believe
   so far this is still true, it would be easy to add a code path that
   just returns a generic error and we would completely ignore it.
 - This was found within some managed key testing where I forgot to wrap
   an error within one of the expected types

* Add changelog
2022-02-22 14:39:21 -05:00
Alexander Scheel 26c993107d
Allow all other_sans in sign-intermediate and sign-verbatim (#13958)
* Allow all other_sans in sign-intermediate and sign-verbatim

/sign-verbatim and /sign-intermediate are more dangerous endpoints in
that they (usually) do not have an associated role. In this case, a
permissive role is constructed during execution of these tests. However,
the AllowedOtherSANs field was missing from this, prohibiting its use
when issuing certificates.

Resolves: #13157

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

* Add changelog

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
2022-02-09 10:09:19 -05:00
Scott Miller f226d0103f
Add duration/count metrics to PKI issue and revoke flows (#13889)
* Add duration/count metrics to PKI issue and revoke flows

* docs, changelog

* tidy

* last tidy

* remove err

* Update callsites

* Simple returns

* Handle the fact that test cases don't have namespaces

* Add mount point to the request

* fmt

* Handle empty mount point, and add it to unit tests

* improvement

* Turns out sign-verbatim is tricky, it can take a role but doesn't have to

* Get around the field schema problem
2022-02-08 10:37:40 -06:00
Steven Clark 43087c96b2
OSS integration of the PKI plugin with managed key infrastructure (#13793)
- The OSS side of things to leverage managed keys from the PKI secrets engine
2022-01-26 23:06:25 -05:00
Scott Miller 4ee5a8b1cd
PKI - Allow performance secondaries to generate and store certificates locally to them (#13759)
* PKI - Allow performance secondaries to generate and store certificates locally to them

* changelog

Co-authored-by: divyapola5 <divya@hashicorp.com>
2022-01-24 10:03:04 -06:00
Scott Miller 33d7dc5fb4
Use the system rand reader for CA root and intermediate generation (#12559)
* Use the system rand reader for CA root and intermediate generation

* changelog
2021-09-15 11:59:12 -05:00
Scott Miller 653bfef52e
Forward cert signing requests to the primary on perf secondaries as well as perf standbys (#12180) 2021-07-28 10:21:01 -05:00
Lars Lehtonen d8f7dd364a
builtin: deprecate errwrap.Wrapf() throughout (#11430)
* audit: deprecate errwrap.Wrapf()

* builtin/audit/file: deprecate errwrap.Wrapf()

* builtin/crediential/app-id: deprecate errwrap.Wrapf()

* builtin/credential/approle: deprecate errwrap.Wrapf()

* builtin/credential/aws: deprecate errwrap.Wrapf()

* builtin/credentials/token: deprecate errwrap.Wrapf()

* builtin/credential/github: deprecate errwrap.Wrapf()

* builtin/credential/cert: deprecate errwrap.Wrapf()

* builtin/logical/transit: deprecate errwrap.Wrapf()

* builtin/logical/totp: deprecate errwrap.Wrapf()

* builtin/logical/ssh: deprecate errwrap.Wrapf()

* builtin/logical/rabbitmq: deprecate errwrap.Wrapf()

* builtin/logical/postgresql: deprecate errwrap.Wrapf()

* builtin/logical/pki: deprecate errwrap.Wrapf()

* builtin/logical/nomad: deprecate errwrap.Wrapf()

* builtin/logical/mssql: deprecate errwrap.Wrapf()

* builtin/logical/database: deprecate errwrap.Wrapf()

* builtin/logical/consul: deprecate errwrap.Wrapf()

* builtin/logical/cassandra: deprecate errwrap.Wrapf()

* builtin/logical/aws: deprecate errwrap.Wrapf()
2021-04-22 11:20:59 -04:00
Brian Kassouf 303c2aee7c
Run a more strict formatter over the code (#11312)
* Update tooling

* Run gofumpt

* go mod vendor
2021-04-08 09:43:39 -07:00
ncabatoff fde5e55ce9
Handle otherName SANs in CSRs (#6163)
If a CSR contains a SAN of type otherName, encoded in UTF-8, and the signing role specifies use_csr_sans, the otherName SAN will be included in the signed cert's SAN extension.

Allow single star in allowed_other_sans to match any OtherName.  Update documentation to clarify globbing behaviour.
2019-12-11 10:16:44 -05:00
Chris Hoffman ea0974b578
if storing the certificate, always generate/sign the certificate on the primary (#7904) 2019-12-05 13:50:28 -05:00
ncabatoff c48936c4fd
Refactor cert util (#6676)
Break dataBundle into two pieces: inputBundle, which contains data that
is specific to the pki backend, and creationBundle, which is a more
generic bundle of validated inputs given to certificate creation/signing routines.

Move functions that only take creationBundle to certutil and make them public.
2019-05-09 11:43:11 -04:00
Jeff Mitchell 9ebc57581d
Switch to go modules (#6585)
* Switch to go modules

* Make fmt
2019-04-13 03:44:06 -04:00
Jeff Mitchell 8bcb533a1b
Create sdk/ and api/ submodules (#6583) 2019-04-12 17:54:35 -04:00
Jeff Mitchell 5e2cc31cb6
Remove now-spurious ttl check and logic from sign-verbatim. (#5552)
This endpoint eventually goes through generateCreationBundle where we
already have the right checks.

Also add expiration to returned value to match output when using root
generation.

Fixes #5549
2018-10-19 11:13:59 -04:00
Mr Talbot 5551a63221 pki: add ext_key_usage to mirror key_usage and add to sign-verbatim (#4777)
* pki: add ext_key_usage parameter to role

* pki: add key_usage and ext_key_usage parameter to sign-verbatim

* pki: cleanup code as per comments
2018-06-15 18:20:43 -04:00
Jeff Mitchell 91ca3d4b7f
Add URI SANs (#4767) 2018-06-15 15:32:25 -04:00
Marcin Wielgoszewski 9316c96364 Add support for x.509 Name Serial Number attribute in subject of certificates (#4694) 2018-06-04 23:18:39 -04:00
Jeff Mitchell 72200603c6
Fix role writing not allowing key_type of any (#4596)
Fixes #4595
2018-05-19 10:24:43 -07:00
Jeff Mitchell e5f4ca83a0
Update PKI to natively use time.Duration (#4493)
* Update PKI to natively use time.Duration

Among other things this now means PKI will output durations in seconds
like other backends, instead of as Go strings.

* Add a warning when refusing to blow away an existing root instead of just returning success

* Fix another issue found while debugging this...

The reason it wasn't caught on tests in the first place is that the ttl
and max ttl were only being compared if in addition to a provided csr, a
role was also provided. This was because the check was in the role !=
nil block instead of outside of it. This has been fixed, which made the
problem occur in all sign-verbatim cases and the changes in this PR have
now verified the fix.
2018-05-09 10:29:54 -04:00
Vishal Nayak 28e3eb9e2c
Errwrap everywhere (#4252)
* package api

* package builtin/credential

* package builtin/logical

* package command

* package helper

* package http and logical

* package physical

* package shamir

* package vault

* package vault

* address feedback

* more fixes
2018-04-05 11:49:21 -04:00
Jeff Mitchell 8697d80d2e
More cleanup of TTL handling in PKI (#4158)
* Max role's max_ttl parameter a TypeDurationString like ttl
* Don't clamp values at write time in favor of evaluating at issue time,
as is the current best practice
* Lots of general cleanup of logic to fix missing cases
2018-03-19 21:01:41 -04:00
Jeff Mitchell f29bde0052
Support other names in SANs (#3889) 2018-02-16 17:19:34 -05:00
Brian Kassouf 2f19de0305 Add context to storage backends and wire it through a lot of places (#3817) 2018-01-19 01:44:44 -05:00
Brian Kassouf 1c190d4bda
Pass context to backends (#3750)
* Start work on passing context to backends

* More work on passing context

* Unindent logical system

* Unindent token store

* Unindent passthrough

* Unindent cubbyhole

* Fix tests

* use requestContext in rollback and expiration managers
2018-01-08 10:31:38 -08:00
Jeff Mitchell 17310654a1
Add PKCS8 marshaling to PKI (#3518) 2017-11-06 12:05:07 -05:00
Jeff Mitchell d8e2179a42 Rejig some error messages in pki 2017-10-27 12:02:18 -04:00
Chris Hoffman 77336f4ca2 adding warning for conflicting role and request parameters (#3083) 2017-08-02 10:02:40 -04:00
Chris Hoffman 1c14d207b5 Merge pull request #2575 from hashicorp/pki-colons-to-hyphens
Change storage of PKI entries from colons to hyphens
2017-05-03 15:07:15 -04:00
Calvin Leung Huang a00a7815f6 Include and use normalizeSerial func 2017-05-03 10:12:58 -04:00
Jeff Mitchell 4995c69763 Update sign-verbatim to correctly set generate_lease (#2593) 2017-04-18 15:54:31 -04:00
Jeff Mitchell 822d86ad90 Change storage of entries from colons to hyphens and add a
lookup/migration path

Still TODO: tests on migration path

Fixes #2552
2017-04-18 11:14:23 -04:00
Shivaram Lingamneni 2117dfd717 implement a no_store option for pki roles (#2565) 2017-04-07 11:25:47 -07:00
Jeff Mitchell 12e5132779 Allow roles to specify whether CSR SANs should be used instead of (#2489)
request values. Fix up some documentation.

Fixes #2451
Fixes #2488
2017-03-15 14:38:18 -04:00
vishalnayak 2e911fc650 Fix broken build caused due to resolve merge conflicts 2017-02-24 12:41:20 -05:00
Vishal Nayak c6f138bb9a PKI: Role switch to control lease generation (#2403)
* pki: Make generation of leases optional

* pki: add tests for upgrading generate_lease

* pki: add tests for leased and non-leased certs

* docs++ pki generate_lease

* Generate lease is applicable for both issuing and signing

* pki: fix tests

* Address review feedback

* Address review feedback
2017-02-24 12:12:40 -05:00
Saj Goonatilleke 01f3056b8b pki: Include private_key_type on DER-formatted responses from /pki/issue/ (#2405) 2017-02-24 11:17:59 -05:00