Connect2id server 14.6
This Connect2id server release received a sweeping update
of the Redis connector.
It fixes a bug that affected the max_idle expiration of
sessions,
addressed concurrency issues on scan operations and purges max_idle expired
sessions eagerly to conserve Redis server memory. 14.x Connect2id servers
deployed with a Redis for caching and storing sessions are strongly recommended
to upgrade to 14.6.
The session store received a minor configuration change, increasing the maximum concurrent session quota per user from 10 to 25.
Additional information about the new releaese can be found in the release notes below.
Download 14.6
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Standard Connect2id server edition
Apache Tomcat package with Connect2id server 14.6: Connect2id-server.zip
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Connect2id server 14.6 WAR package: c2id.war
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Multi-tenant edition
Apache Tomcat package with Connect2id server 14.6: Connect2id-server-mt.zip
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Connect2id server 14.6 WAR package: c2id-mt.war
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Questions?
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Release notes
14.6 (2023-09-28)
/WEB-INF/sessionStore.properties
- sessionStore.quotaPerSubject -- The maximum configurable session quota per subject (end-user) is increased from 10 to 25 sessions.
Resolved issues
Enhances and refactors the Redis store debug and trace level logging (issue redis-store/7).
Prune max_idle expired entries on Redis store retrieval or iteration (scan) instead of waiting for the final max_lifetime expiration in the Redis store (issue/redis-store/10).
Adds an entry expiration check on Redis store retrieval based on the stored Infinispan entry metadata to prevent situations where a max_idle expired entry is assumed as not expired by Infinispan (since v14.x) (issue server/899, issue redis-store/8).
Makes Redis store iteration (scan) safe with concurrent key deletion or expiration (issue redis-store/11).
Dependency changes
Upgrades to com.nimbusds:oauth2-oidc-sdk:11.0
Updates to com.nimbusds:oidc-session-store:16.5
Updates to com.nimbusds:nimbus-jose-jwt:9.35
Upgrades to Infinispan to 14.0.17.Final
Updates to com.nimbusds:infinispan-cachestore-sql:7.0.5
Updates to com.microsoft.sqlserver:mssql-jdbc:12.2.0.jre11
Updates to com.oracle.database.jdbc:ojdbc11:21.9.0.0
Updates to com.nimbusds:infinispan-cachestore-redis:10.1.1
Updates to com.nimbusds:infinispan-cachestore-dynamodb:5.0.2
Updates to com.unboundid:unboundid-ldapsdk:6.0.10
Updates to commons-io:commons-io:2.11.0
Connect2id server 14.5
Connect2id server 14.5 ships several small updates to its APIs and fixes v14.x issues reported in August.
This release also receives an enhanced redirect_uri validation, to prevent
clients from registering or using redirection URIs with query parameters that
may lead to authorisation response parameter pollution, as discussed on the
24th of August at the OAuth Security Workshop
in London. The extra redirect_uri check is
implemented
in the underlying OAuth 2.0 / OpenID Connect SDK
and will basically block clients from registering (or using) redirection URIs
with query parameters that shadow the authorisation
response parameters
code, state or the JARM response. If a client for some reason is
registered with a redirect_uri that contains one of these query parameters it
will be forced to re-register with a compliant URI.
More information about what's new or was fixed in v14.5 can be found in the release notes below.
We are currently in the process of reworking our 10 year old connect2id.com website design. Our aim is to make it better, not worse, and to find out what people actually think or want to have improved we've set up this anonymous form. Your feedback will be highly appreciated.
Download 14.5
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Apache Tomcat package with Connect2id server 14.5: Connect2id-server.zip
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Connect2id server 14.5 WAR package: c2id.war
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Multi-tenant edition
Apache Tomcat package with Connect2id server 14.5: Connect2id-server-mt.zip
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Connect2id server 14.5 WAR package: c2id-mt.war
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Questions?
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Release notes
14.5 (2023-09-03)
Web API
/clients
- Prevents registration of clients with "redirect_uris" that include a "code", "state" or "response" query parameter. OAuth 2.0 generally allows a client "redirect_uri" to include query parameters, which may be used, for instance, to process authorisation responses from multiple OAuth 2.0 servers or OpenID providers. This is a security measure that follows a recent recommendation that clients must not include query parameters in a registered "redirect_uri" with names used by the OAuth 2.0 authorisation response.
/authz-sessions/rest/v3/
The authorisation session object (obtainable via an HTTP GET request) receives an optional "auth_req.max_age" member of type array to represent the maximum authentication age in OpenID authentication requests.
The authorisation session object (obtainable via an HTTP GET request) receives an optional "auth_req.acr_values" member of type array to represent the Authentication Context Class Reference values in OpenID authentication requests.
The authorisation session object (obtainable via an HTTP GET request) receives an optional "auth_req.login_hint" member of type string to represent the login hint in OpenID authentication requests.
Rejects OAuth 2.0 authorisation and OpenID authentication requests with a "redirect_uri" that includes a "code", "state" or "response" query parameter with an "invalid_request" error. Redirection URIs with query parameters that match the name of an OAuth 2.0 authorisation response parameter are deemed unsafe. Clients that use such query parameters in a "redirect_uri" must re-register with a new compliant redirection URI.
SPI
Upgrades the Connect2id server SDK to com.nimbusds:c2id-server-sdk:4.59
- The CustomTokenResponseComposer SPI extends Lifecycle.
Resolved issues
Alters the Oracle "clients" table definition of the "jwks" column from VARCHAR2(4000) to CLOB (issue server/910).
Logs the IDTokenIssueEventListener SPI and AccessTokenIssueEventListener SPI enabled status (issue server/915).
Isolates expended rotated self-contained (JWT) refresh tokens by subject (end-user) session ID when the refresh token is issued in a OAuth 2.0 authorisation code grant. For clients with multiple instances per subject (end-user) where the consent is transient (long_lived=false) (issue authz-store/223).
Logs the OP8041 INFO message only when there are explicit OpenID Connect Federation 1.0 clients reaped (issue server/916).
Removes redundant Infinispan externalisers used in the OpenID Connect Federation 1.0 explicit client index (issue server/917).
Fixes an HTTP 500 Internal Server Error at the authorisation session web API when receiving an OpenID authentication request with certain illegal JSON in the claims parameter that produced an OAuth 2.0 "error_description" with an illegal double-quote character according to RFC 6749, section 5.2 (issue server/919).
Dependency changes
Upgrades to com.nimbusds:c2id-server-sdk:4.59
Updates to com.nimbusds:oauth2-oidc-sdk:10.14.2
Updates to com.nimbusds:oauth2-authz-store:24.6
Updates to net.minidev:json-smart:2.4.11
Updates to com.google.crypto.tink:tink:1.10.0
Connect2id server 14.4 introduces Rich Authorisation Request (RAR) type checking
RAR
This Connect2id server release is another step towards a complete built-in support for OAuth 2.0 Rich Authorisation Requests (RFC 9396).
Identity providers and OAuth 2.0 servers that implement this recent OAuth 2.0
extension can now use the
op.rar.supportedTypes
configuration property to list the supported RAR types. In RAR the JSON objects
that express the authorization_details have an explicit "type" to aid their
parsing and validation.
Example configuration listing two supported RAR object types:
op.rar.supportedTypes=account_information,payment_initiation
The supported types will then be published in the OpenID provider metadata where clients and developers can discover them.
Example server metadata snippet:
{
"issuer" : "https://c2id.com",
"jwks_uri" : "https://c2id.com/jwks.json",
...
"authorization_details_types_supported" : [ "account_information",
"payment_initiation" ],
...
}
When RAR types are configured the Connect2id server will not only include them
in the published server metadata, but will also use them to check the
authorization_details parameter in received
authorisation and
token requests. If the type is supported the
request can proceed, if not the server will return an
invalid_authorization_details
to the client. Previously this check had to be done by creating dedicated
PAR validator and / or
authorisation request validator
plugins.
Within the authorisation session web
API the authorization_details
parameter can now be accessed by handler logic in the session
object
under auth_req.authorization_details.
H2 database upgrade
This release also changes the version number of the embedded H2 database, from v2.1.x to v2.2.x. Connect2id server deployments that use this database must migrate any records they wish to retain, because the newer version uses an updated DB file format.
You can find more information about this new release in the notes below.
Download 14.4
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Apache Tomcat package with Connect2id server 14.4: Connect2id-server.zip
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Connect2id server 14.4 WAR package: c2id.war
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Multi-tenant edition
Apache Tomcat package with Connect2id server 14.4: Connect2id-server-mt.zip
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Connect2id server 14.4 WAR package: c2id-mt.war
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Questions?
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Release notes
14.4 (2023-08-11)
Summary
Connect2id server deployments that implement OAuth 2.0 Rich Authorisation Requests (RAR) (RFC 9396) can use a new "op.rar.supportedTypes" configuration property to let the server check the types of "authorization_details" in received requests and reject requests with unsupported RAR types. The supported types will also be advertised in the "authorization_details_types_supported" OpenID provider metadata field.
Connect2id server deployments with an embedded H2 database are upgraded from 2.1.x to the latest stable 2.2.x release. Database files created in the older H2 version are not compatible. Existing records (where they must be retained) must be migrated.
Configuration
/WEB-INF/oidcProvider.properties
- op.rar.supportedTypes -- New optional configuration property to list the supported OAuth 2.0 Rich Authorisation Request (RAR) (RFC 9396) types. When specified the "authorization_details" in OAuth 2.0 authorisation / OpenID authentication requests and token requests will be checked and those with an unsupported type will be rejected with an "invalid_authorization_details" error. The types will also be advertised in the "authorization_details_types_supported" OpenID provider metadata field. The default value is none (no check).
Web API
/.well-known/openid-configuration
- authorization_details_types_supported -- New optional metadata field listing the supported OAuth 2.0 Rich Authorisation Request (RAR) (RFC 9396) types. Omitted if not specified.
/authz-sessions/rest/v3/
- The authorisation session object (obtainable via an HTTP GET request) receives an optional "auth_req.authorization_details" member to represent the Rich Authorization Request (RAR) (RFC 9396) parameter in OAuth 2.0 authorisation requests and OpenID authentication requests.
Resolved issues
The UserInfo endpoint must not request claims from the sourcing SPI that are pre-set (e.g. supplied via "preset_claims.userinfo" in the authorisation session API) (issue server/885).
Updates JWT minting to support the inclusion of null-valued top-level claims, which can legitimately occur in data returned from the claims source SPI. The claims set in plain (unsecured) UserInfo responses and JWT-secured UserInfo responses will thus be identical for those cases when claims with null values are included, previously omitted in a JWT (issue server/906).
The "authorization_details" parameter must be obtainable in the AuthorizationRequestValidator and PARValidator SPIs (issue server/907).
Dependency changes
Updates to com.nimbusds:oauth2-authz-store:24.5.3
Updates to com.nimbusds:oidc-session-store:16.4.4
Updates to com.h2database:h2:2.2.220
Connect2id server 14.3
This Connect2id server release fixes a bug in earlier 14.x versions that caused marshalling errors in deployments configured with a Redis store for cached and short-lived objects.
The optional op.reg.clientIDByteLength
configuration property was updated to limit the possible lengths to 48 bytes.
The preferred_client_id
registration parameter is also bounded now, to 80 characters, and when exceeded
will cause the client registration
endpoint to return an HTTP 400
Bad Request with an
invalid_client_metadata error.
The underlying OAuth 2.0 / OpenID Connect
SDK dependency was updated and now
includes support for RAR
(RFC 9396). CustomTokenResponseComposer
SPI plugins
that implement RAR should be recompiled for potential conflicts with the new
RAR API in the SDK, and updated when feasible to utilise the new type-safe RAR
classes when adding an authorization_details parameter to the a token
response.
Built-in RAR support is on the Connect2id server roadmap and will be included in a future release.
You can find more information about this new release in the notes below.
Download 14.3
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Apache Tomcat package with Connect2id server 14.3: Connect2id-server.zip
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Connect2id server 14.3 WAR package: c2id.war
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Multi-tenant edition
Apache Tomcat package with Connect2id server 14.3: Connect2id-server-mt.zip
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Connect2id server 14.3 WAR package: c2id-mt.war
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Questions?
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Release notes
14.3 (2023-08-07)
Summary
Connect2id server 14.x deployments with a Redis store should update to this release which fixes an issue related to ProtoBuf marshalling.
The OAuth 2.0 / OpenID Connect SDK dependency was updated to v10.13.2 which includes native OAuth 2.0 Rich Authorisation Requests (RAR) (RFC 9396) support. CustomTokenResponseComposer SPI plugins that implement RAR should be recompiled and updated if feasible to utilise the new type-safe methods of AccessTokenResponse when adding an "authorization_details" parameter to the response.
Built-in RAR support is on the Connect2id server roadmap and will be included in a future release.
Configuration
/WEB-INF/oidcProvider.properties
- op.reg.clientIDByteLength -- Updates the configuration property check, the length of generated client identifiers must not exceed 48 bytes.
Resolved issues
The client registration endpoint must return HTTP 400 Bad Request on a preferred_client_id that exceeds the max number of characters (80) that can be stored (issue server/901).
Fixes the authorisation code ProtoBuf marshalling in replication cluster and Redis based Connect2id server deployments (issue server/902).
Dependency changes
Upgrades to com.nimbusds:oauth2-oidc-sdk:10.13.2
Updates to com.nimbusds:oauth2-authz-store:24.5.2
Updates Infinispan to 14.0.13.Final
Updates to org.slf4j:slf4j-api:2.0.7
Connect2id server 14.2 introduces reuse grace period for rotated refresh tokens
The current OAuth 2.0 best practices mandate refresh tokens issued to public clients to be either sender-constrained (with mTLS or DPoP) or rotated, to prevent replay if the refresh token suffers a leak and gets in the hands of a malicious actor.
One recognised drawback of rotation is potential false positives for legitimate
public clients with a slow or poor network connection, which may lead to
situations when the OAuth 2.0 server has successfully processed the
token request and output the
response with new newly
minted access and refresh tokens, but the client being unable to retrieve them
due to an HTTP timeout or an interrupted connection. The client will then
typically retry the request with the previous refresh token, but because the
server has flagged that token as already rotated the client will get an
invalid_grant error.
To mitigate such networking issues the Connect2id server introduces a short grace period during which the client may retry the token request with the same refresh token. This grace period is 5 seconds. To change it we added a new configuration property:
authzStore.refreshToken.rotatedReuseGracePeriod=5
To monitor the frequency of rotated refresh token reuses - those that were allowed to proceed within the grace period and those that were rejected, two new meters were added:
authzStore.rotatedRefreshTokenAllowedReuses-- Meters allowed reuses of rotated refresh tokens within the configured grace period.authzStore.rotatedRefreshTokenReplayRevocations-- Meters authorisation revocations due to rotated refresh token replay.
The Connect2id server log records the individual rotated refresh token replays and what particular action was taken. Together this information may be used to fine-tune the grace period.
Example rotated refresh token reuse within the grace period (grep for AS0285):
INFO TOKEN - [OP6204] Confidential client authenticated: client_id=etxmlfglafhn2 method=client_secret_basic client_auth_id=dUEgk8M0Bue_5AJR
INFO AUTHZ-STORE - [AS0285] Expended refresh token check: Allowed reuse within 1s: last_token_iat=1689583263 checked_token_iat=1689583257
INFO AUTHZ-STORE - [AS0280] Issued access token: sub=alice act= client_id=etxmlfglafhn2 scope=[read, write]
Example rotated refresh token reuse that was denied and triggered the customary
revocation of the client's tokens for the subject (grep for AS0278):
INFO TOKEN - [OP6204] Confidential client authenticated: client_id=hxds4i5olwtqc method=client_secret_basic client_auth_id=PNRC_b0DADRbx0Xx
INFO AUTHZ-STORE - [AS0278] Revoked authorizations due to replay of rotated self-contained refresh token: sub=alice act=null client_id=hxds4i5olwtqc
INFO AUTHZ-STORE - [AS0270] Invalid or expired refresh token: client_id=hxds4i5olwtqc
INFO TOKEN - [OP6201] Token error response: invalid_grant: Invalid grant
This release also fixes two store related bugs that appeared in major 14.0 release last month. You can find more information in the release notes below.
Download 14.2
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Connect2id server 14.2 WAR package: c2id.war
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Multi-tenant edition
Apache Tomcat package with Connect2id server 14.2: Connect2id-server-mt.zip
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Connect2id server 14.2 WAR package: c2id-mt.war
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Questions?
If you have technical questions about this new release contact Connect2id support. To purchase a production license for the Connect2id server, renew or upgrade your support and updates subscription, email our sales.
Release notes
14.2 (2023-07-17)
Configuration
/WEB-INF/authzStore.properties
- authzStore.refreshToken.rotatedReuseGracePeriod -- New optional configuration property specifying a grace period in seconds during which a client may repeat a request with the same rotated refresh token without triggering the customary token revocation. Intended to enable token request retrial on slow / poor networks where the HTTP response times out after issue of the new token. Currently supported only for refresh tokens linked to short-lived (transient) authorisations. The default value is 5 seconds.
Web API
/token
- A client may repeat a token request with a rotated refresh token within the configured "authzStore.refreshToken.rotatedReuseGracePeriod" period without triggering the customary token revocation when the Connect2id detects a replay of a rotated refresh token. Intended to enable token request retrial on slow / poor networks where the HTTP response times out after issue of the new token. Currently supported only for refresh tokens linked to short-lived (transient) authorisations.
/monitor/v1/metrics
"authzStore.rotatedRefreshTokenReplayRevocations" -- New meter of authorisation revocations due to rotated refresh token replay.
"authzStore.rotatedRefreshTokenAllowedReuses" -- New meter of the allowed reuses of rotated refresh tokens within the configured grace period.
Resolved issues
Fixes Redis HMGET retrieval of the "last used" (u) field in the Infinispan Redis connector that caused subject session max_idle > 0 to not be observed in Connect2id server deployments with a Redis store (issue server/899).
Writes to Oracle database CLOB / NCLOB fields with long strings that trigger the string concatenation work-around must escape quote chars (issue sql-store/20).
Dependency changes
Updates to com.nimbusds:oauth2-authz-store:24.5.1
Updates Infinispan to 14.0.11.Final
Updates to com.nimbusds:infinispan-cachestore-sql:7.0.4
Updates to com.nimbusds:infinispan-cachestore-redis:10.0.2
Updates to BouncyCastle 1.74
Updates to com.google.crypto.tink:tink:1.9.0