Improper Certificate Validation in Shibboleth Identity Provider and OpenSAML
Date: 2022-05
Affected: maven/edu.internet2.middleware:shibboleth-identityprovider, maven/org.opensaml:opensaml
Attack vector: deepfake
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2015-1796
CWE: CWE-295

The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.


Mitigations:

Architectural layers (MAESTRO):