SCM HttpClient Plugin 1.5 and earlier does not perform permission check in a method implementing form validation.

This allows attackers with Overall/Read permission to connect to an attacker-specified HTTP server using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

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

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-41249
• https://www.jenkins.io/security/advisory/2022-09-21/#SECURITY-2708
• http://www.openwall.com/lists/oss-security/2022/09/21/5