SB2024062409 - Multiple vulnerabilities in Keycloak

Description

This security bulletin contains information about 2 vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2024-3656)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to escalate privileges within the application.

The vulnerability exists due to improperly imposed security restrictions on the administrative features. A remote low privileged user can utilize administrative functionalities within Keycloak admin interface and escalate privileges within the application.

2) Information disclosure (CVE-ID: CVE-2024-4540)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 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

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.

Remediation

Install update from vendor's website.

References

• https://github.com/keycloak/keycloak/security/advisories/GHSA-2cww-fgmg-4jqc
• https://bugzilla.redhat.com/show_bug.cgi?id=2279303
• https://github.com/keycloak/keycloak/security/advisories/GHSA-69fp-7c8p-crjr