CVE-2023-3597

MEDIUM

Keycloak < 22.0.10 - Authentication Bypass via Incorrect Client Step-Up Validation

Title source: llm
STIX 2.1

Description

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.

References (5)

Core 5
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:1866
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:1867
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:1868
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-3597
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2221760

Scores

CVSS v3 5.0
EPSS 0.0009
EPSS Percentile 25.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-287
Status published
Products (6)
org.keycloak/keycloak-services 0 - 22.0.10Maven
Red Hat/Red Hat build of Keycloak 22 22-13
Red Hat/Red Hat build of Keycloak 22 22-16
Red Hat/Red Hat build of Keycloak 22 22.0.10-1
Red Hat/Red Hat build of Keycloak 22.0.10
Red Hat/RHSSO 7.6.8
Published Apr 25, 2024
Tracked Since Feb 18, 2026