SB2024092081 - Information disclosure in Red Hat Single Sign-On 7.6



SB2024092081 - Information disclosure in Red Hat Single Sign-On 7.6

Published: September 20, 2024

Security Bulletin ID SB2024092081
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) 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.