Keycloak Authentication Error
Date: 2022-05
Affected: maven/org.keycloak:keycloak-services, maven/org.keycloak:keycloak-saml-adapter-core
Attack vector: other
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2018-10894
CWE: CWE-295
CVSS: 5.4 (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N)

It was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use this to access unauthorized data or possibly conduct further attacks.


Mitigations:

Architectural layers (MAESTRO):