Improper Authentication in Keycloak - CVE-2023-3597
Published: April 17, 2024
Vulnerability identifier: #VU88792
CSH Severity: Low
CVSS v4: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-3597
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to bypass 2FA authentication process.
The vulnerability exists due to Keycloak does not correctly validate its client step-up authentication in org.keycloak.authentication. A remote user authenticated with password can use this flaw to register a false second
authentication factor along with existing one and bypass authentication.
Affected software
Keycloak
How to mitigate CVE-2023-3597
Install updates from vendor's website.
Keycloak - addressed in versions 22.0.10, 24.0.3