Jenkins 2.217 through 2.441 (both inclusive), LTS 2.222.1 through 2.426.2...

Vulnerability Description

Jenkins 2.217 through 2.441 (both inclusive), LTS 2.222.1 through 2.426.2 (both inclusive) does not perform origin validation of requests made through the CLI WebSocket endpoint, resulting in a cross-site WebSocket hijacking (CSWSH) vulnerability, allowing attackers to execute CLI commands on the Jenkins controller.

References

• https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3315
• https://www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins/
• http://www.openwall.com/lists/oss-security/2024/01/24/6