VulnerabilityModified
CVE-2023-2422
A flaw was found in Keycloak.
HIGH 7.1EPSS 0.52%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- EPSS
- 0.52% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- redhat/keycloak · redhat/openshift container platform · redhat/single sign-on
- Source
- secalert@redhat.com
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 Tracking, Vendor 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 Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.