Jenkins Build Failure Analyzer Plugin 2.4.1 and earlier does not perform a permission check in a connection test HTTP endpoint.

This allows attackers with Overall/Read permission to connect to an attacker-specified hostname and port using attacker-specified username and password.

Additionally, this HTTP endpoint does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.

Build Failure Analyzer Plugin 2.4.2 requires POST requests and Overall/Administer permission for the affected HTTP endpoint.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-43500
• https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3226
• http://www.openwall.com/lists/oss-security/2023/09/20/5