Information disclosure in Keycloak - CVE-2024-4540
Published: June 24, 2024
Vulnerability identifier: #VU93088
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-4540
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Keycloak
Affected software:
Keycloak
Keycloak
Detailed vulnerability description
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to an error in the OAuth 2.0 Pushed Authorization Requests (PAR) implementation. Client provided parameters are included in plain text in to
the KC_RESTART cookie returned by the authorization server's HTTP
response to a request_uri authorization request. A local user with access to the system can use the cookie to gain access to sensitive information.
How to mitigate CVE-2024-4540
Install updates from vendor's website.