Keycloak secondary factor bypass in step-up authentication
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2023-3597US | —OT elevated | — | ||
A flaw was found in Keycloak, where it does not correctly validate its client step-up authentication in org.keycloak.authentication. This flaw allows a remote user authenticated wi… | ||||
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references
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2024:1866WEB
- https://access.redhat.com/errata/RHSA-2024:1867WEB
- https://access.redhat.com/errata/RHSA-2024:1868WEB
- https://access.redhat.com/security/cve/CVE-2023-3597WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2221760WEB
- https://github.com/keycloak/keycloakPACKAGE
- https://github.com/keycloak/keycloak/commit/aa634aee882892960a526e49982806e103c8a432WEB
- https://github.com/keycloak/keycloak/security/advisories/GHSA-4f53-xh3v-g8x4WEB
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