CVE-2023-2422
HIGH7.1EPSS 0.32%Keycloak vulnerable to Improper Client Certificate Validation for OAuth/OpenID clients
Published: 6/30/2023Modified: 2/16/2024
Also known as:GHSA-3qh5-qqj2-c78f
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.
Affected packages (1)
- Maven/org.keycloak:keycloak-servicesfrom 0, < 21.1.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
References (11)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-2422
- PATCHhttps://github.com/keycloak/keycloak
- WEBhttps://access.redhat.com/errata/RHSA-2023:3883
- WEBhttps://access.redhat.com/errata/RHSA-2023:3884
- WEBhttps://access.redhat.com/errata/RHSA-2023:3885
- WEBhttps://access.redhat.com/errata/RHSA-2023:3888
- WEBhttps://access.redhat.com/errata/RHSA-2023:3892
- WEBhttps://access.redhat.com/security/cve/CVE-2023-2422
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2191668
- WEBhttps://github.com/keycloak/keycloak/commit/5c6c55945a384bfd82e51283096204dcb6f63d91
- WEBhttps://github.com/keycloak/keycloak/security/advisories/GHSA-3qh5-qqj2-c78f