Keycloak Authentication Bypass Vulnerability

CVE-2023-3597

What is CVE-2023-3597?

A security flaw exists in Keycloak, where the system fails to accurately validate client step-up authentication processes. This creates a potential risk whereby an authenticated remote user can register a fraudulent second authentication factor alongside an existing one. Utilizing this vulnerability, attackers could bypass the intended security measures, allowing them unauthorized access to sensitive resources. Proper validation mechanisms are crucial to ensure that the authentication process functions as intended, safeguarding against unauthorized actions.

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References