CVE-2023-46654

Jenkins CloudBees CD Plugin 1.1.32 and earlier follows symbolic links to locations outside of the expected directory during the cleanup process of the CloudBees CD - Publish Artifact post-build step, allowing attackers able to configure jobs to delete arbitrary files on the Jenkins controller file system.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Potential Mitigations

• Follow the principle of least privilege when assigning access rights to entities in a software system.
• Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/132.html
• https://cwe.mitre.org/data/definitions/17.html
• https://cwe.mitre.org/data/definitions/35.html
• https://cwe.mitre.org/data/definitions/76.html

References

• http://www.openwall.com/lists/oss-security/2023/10/25/2
• https://www.jenkins.io/security/advisory/2023-10-25/#SECURITY-3237
• http://www.openwall.com/lists/oss-security/2023/10/25/2
• https://www.jenkins.io/security/advisory/2023-10-25/#SECURITY-3237