CVE-2022-25179

Jenkins Pipeline: Multibranch Plugin 706.vd43c65dec013 and earlier follows symbolic links to locations outside of the checkout directory for the configured SCM when reading files using the readTrusted step, allowing attackers able to configure Pipelines permission to read 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

• https://www.jenkins.io/security/advisory/2022-02-15/#SECURITY-2613