CVE-2023-0657 Information

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.

CVSS Vector

CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

Reference

https://access.redhat.com/errata/RHSA-2024:1867 https://access.redhat.com/errata/RHSA-2024:1868 https://access.redhat.com/security/cve/CVE-2023-0657 https://bugzilla.redhat.com/show_bug.cgi?id=2166728

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

3.4