Vulnerability Description
A flaw was found in Keycloak. A Keycloak server configured to support mTLS authentication for OAuth/OpenID clients does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client, therefore, access data that belongs to other clients.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Keycloak | - |
| Redhat | Openshift Container Platform | 4.9 |
| Redhat | Single Sign-On | 7.6 |
| Redhat | Enterprise Linux | 7.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2023:3883Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3884Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3885Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3888Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3892Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2023-2422Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2191668Issue TrackingVendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3883Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3884Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3885Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3888Vendor Advisory
- https://access.redhat.com/errata/RHSA-2023:3892Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2023-2422Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2191668Issue TrackingVendor Advisory
FAQ
What is CVE-2023-2422?
CVE-2023-2422 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A flaw was found in Keycloak. A Keycloak server configured to support mTLS authentication for OAuth/OpenID clients does not properly verify the client certificate chain. A client that possesses a prop...
How severe is CVE-2023-2422?
CVE-2023-2422 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-2422?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Keycloak, Redhat Openshift Container Platform, Redhat Single Sign-On, Redhat Enterprise Linux.