Improper Certificate Validation Affecting rh-sso7-keycloak-server package, versions <0:18.0.8-1.redhat_00001.1.el7sso


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.16% (53rd percentile)

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  • Snyk IDSNYK-RHEL7-RHSSO7KEYCLOAKSERVER-5742988
  • published27 Jun 2023
  • disclosed26 Jun 2023

Introduced: 26 Jun 2023

CVE-2023-2422  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade RHEL:7 rh-sso7-keycloak-server to version 0:18.0.8-1.redhat_00001.1.el7sso or higher.
This issue was patched in RHSA-2023:3883.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rh-sso7-keycloak-server package and not the rh-sso7-keycloak-server package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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 Scores

version 3.1