CVE-2023-3597: Keycloak secondary factor bypass in step-up authentication

April 17, 2024

Keycloak does not correctly validate its client step-up authentication. A password-authed attacker could use this flaw to register a false second auth factor, alongside the existing one, to a targeted account. The second factor then permits step-up authentication.

References

github.com/advisories/GHSA-4f53-xh3v-g8x4
github.com/keycloak/keycloak
github.com/keycloak/keycloak/commit/aa634aee882892960a526e49982806e103c8a432
github.com/keycloak/keycloak/security/advisories/GHSA-4f53-xh3v-g8x4
nvd.nist.gov/vuln/detail/CVE-2023-3597

Code Behaviors & Features

Detect and mitigate CVE-2023-3597 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →