CVE-2023-3597CWE-287

Keycloak: secondary factor bypass in step-up authentication

Medium · published April 25, 2024

CVSS v3.1
5.0
EPSS
1%
Percentile
48.2
In the wild
Unconfirmed
What it is

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 with a password to register a false second authentication factor along with an existing one and bypass authentication.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00603 · 48.2th percentile
Weakness
CWE-287 · Improper Authentication
Published
2024-04-25T12:20Z
EPSS history
Timeline
  • 25 APR 12:20Z
    Keycloak: secondary factor bypass in step-up authentication
    cvelistv5