Jenkins GitLab Authentication Plugin 1.13 and earlier records the HTTP Referer header as part of the URL query parameters when the authentication process starts, allowing attackers with access to Jenkins to craft a URL that will redirect users to an attacker-specified URL after logging in.

This issue is caused by an incomplete fix of SECURITY-796.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-25196
• https://www.jenkins.io/security/advisory/2022-02-15/#SECURITY-1833
• http://www.openwall.com/lists/oss-security/2022/02/15/2
• https://www.jenkins.io/security/advisory/2019-08-07/#SECURITY-796