CVE-2023-0657

Keycloak: impersonation via logout token exchange

Published Nov 17, 2024 CVSS 3.1 · 3.4 Low EPSS < 1% KEV · Not listed
Description
A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2024-1142 A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.
Github GHSA Github GHSA GHSA-7fpj-9hr8-28vh Keycloak vulnerable to impersonation via logout token exchange
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title keycloak: impersonation via logout token exchange Keycloak: impersonation via logout token exchange
First Time appeared Redhat red Hat Single Sign On
CPEs cpe:/a:redhat:red_hat_single_sign_on:7
Vendors & Products Redhat red Hat Single Sign On
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 17, 2024, 4:18 PM
Reserved
Feb 2, 2023, 6:49 PM
Status
Deferred
Published
Nov 17, 2024, 11:15 AM
Modified
Jun 17, 2026, 5:26 AM
Severity
Low
Public date
Apr 16, 2024, 12:00 AM