Bug 1690628 (CVE-2019-3875)
| Summary: | CVE-2019-3875 keycloak: missing signatures validation on CRL used to verify client certificates | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Laura Pardo <lpardo> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | aileenc, avibelli, bgeorges, cbyrne, chazlett, cmacedo, cmoulliard, dffrench, dkreling, drieden, drusso, ikanello, janstey, jbalunas, jmadigan, jochrist, jpallich, jshepherd, jwon, krathod, lthon, mposolda, mszynkie, ngough, pasik, pdrozd, pgallagh, pjindal, psampaio, pwright, rruss, security-response-team, sthorger, trepel, trogers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | keycloack 7.0.0 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-07-12 13:06:48 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1690630 | ||
Acknowledgments: Name: Marek Posolda (Red Hat) This issue has been addressed in the following products: Red Hat Single Sign-On 7.3.2 zip Via RHSA-2019:1456 https://access.redhat.com/errata/RHSA-2019:1456 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2019-3875 This vulnerability is out of security support scope for the following product:
>
> * Red Hat Mobile Application Platform
>
> Please refer to https://access.redhat.com/support/policy/updates/rhmap for more details
per upstream jira, fix is in keycloak 7.0.0, corrected. This issue has been addressed in the following products: Red Hat Openshift Application Runtimes Via RHSA-2020:2067 https://access.redhat.com/errata/RHSA-2020:2067 This issue has been addressed in the following products: Red Hat Runtimes Spring Boot 2.1.12 Via RHSA-2020:2366 https://access.redhat.com/errata/RHSA-2020:2366 |
A vulnerability was found in keycloak. The X.509 authenticator supports the verification of client certificates through the CRL, where the CRL list can be obtained from the URL provided in the certificate itself (CDP) or through the separately configured path. The CRL are often available over the network through unsecured protocols ("http" or "ldap") and hence the caller should verify the signature and possibly the certification path. Keycloak currently doesn't validate signatures on CRL, which can result in a possibility of various attacks like man-in-the-middle. References: https://issues.jboss.org/browse/KEYCLOAK-9846 Upstream patch: https://github.com/keycloak/keycloak/commit/996389d61b1996ac6fe2ce2264fba0616f006055 https://github.com/keycloak/keycloak/commit/a48698caa32933458916980ab05256f56099a337 https://github.com/keycloak/keycloak/commit/db271f7150aae914a8f256ccb48e9d1dac9d7126