Jenkins 2.441 and earlier, LTS 2.426.2 and earlier does not...

Vulnerability Description

Jenkins 2.441 and earlier, LTS 2.426.2 and earlier does not disable a feature of its CLI command parser that replaces an '@' character followed by a file path in an argument with the file's contents, allowing unauthenticated attackers to read arbitrary files on the Jenkins controller file system.

References

• https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3314
• https://www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins/
• http://www.openwall.com/lists/oss-security/2024/01/24/6
• http://packetstormsecurity.com/files/176839/Jenkins-2.441-LTS-2.426.3-CVE-2024-23897-Scanner.html
• http://packetstormsecurity.com/files/176840/Jenkins-2.441-LTS-2.426.3-Arbitrary-File-Read.html