[org.jenkins-ci.plugins:active-directory] CSRF vulnerability in Jenkins Active Directory Plugin

Active Directory Plugin 2.19 and earlier does not require POST requests for multiple HTTP endpoints implementing connection and authentication tests, resulting in cross-site request forgery (CSRF) vulnerabilities.

This vulnerability allows attackers to perform connection tests, connecting to attacker-specified or previously configured Active Directory servers using attacker-specified credentials.

Active Directory Plugin 2.20 requires POST requests for the affected HTTP endpoints.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-2303
• https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2126
• http://www.openwall.com/lists/oss-security/2020/11/04/6
• https://github.com/advisories/GHSA-2wf5-4mf7-vmh3