CVE-2022-25179: Improper Link Resolution Before File Access ('Link Following')

February 16, 2022 (updated February 26, 2022)

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.

References

github.com/advisories/GHSA-2m9w-9xh2-wxc3
nvd.nist.gov/vuln/detail/CVE-2022-25179
www.jenkins.io/security/advisory/2022-02-15/

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