CVE-2022-25176: Improper Link Resolution Before File Access ('Link Following')

February 16, 2022 (updated June 20, 2022)

Jenkins Pipeline: Groovy Plugin 2648.va9433432b33c and earlier follows symbolic links to locations outside of the checkout directory for the configured SCM when reading the script file (typically Jenkinsfile) for Pipelines, allowing attackers able to configure Pipelines to read arbitrary files on the Jenkins controller file system.

References

github.com/advisories/GHSA-6473-gqrj-4p65
nvd.nist.gov/vuln/detail/CVE-2022-25176
www.jenkins.io/security/advisory/2022-02-15/

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