HIGH 7.1 Maven
Keycloak vulnerable to Improper Client Certificate Validation for OAuth/OpenID clients
GHSA-3qh5-qqj2-c78f · CVE-2023-2422
Published · Modified
Description
When a Keycloak server is configured to support mTLS authentication for OAuth/OpenID clients, it does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client and therefore access data that belongs to other clients.
References
- WEB https://github.com/keycloak/keycloak/security/advisories/GHSA-3qh5-qqj2-c78f
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-2422
- WEB https://github.com/keycloak/keycloak/commit/5c6c55945a384bfd82e51283096204dcb6f63d91
- WEB https://access.redhat.com/errata/RHSA-2023:3883
- WEB https://access.redhat.com/errata/RHSA-2023:3884
- WEB https://access.redhat.com/errata/RHSA-2023:3885
- WEB https://access.redhat.com/errata/RHSA-2023:3888
- WEB https://access.redhat.com/errata/RHSA-2023:3892
- WEB https://access.redhat.com/security/cve/CVE-2023-2422
- WEB https://bugzilla.redhat.com/show_bug.cgi?id=2191668
- PACKAGE https://github.com/keycloak/keycloak
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