GHSA-4pw5-r58h-fv24

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GHSA-4pw5-r58h-fv24

Summary: Path traversal vulnerability on Windows in Jenkins

Details: The file browser for workspaces, archived artifacts, and `userContent/` in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files as absolute on Windows. This results in a path traversal vulnerability allowing attackers with Overall/Read permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of arbitrary files.\n\nThe file browser in Jenkins 2.315, LTS 2.303.2 refuses to serve files that would be considered absolute paths.

References: https://nvd.nist.gov/vuln/detail/CVE-2021-21683, https://github.com/jenkinsci/jenkins/commit/3f679fc12d073676a4441d3fa8b5fff34c07662f, https://github.com/jenkinsci/jenkins, https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2481, http://www.openwall.com/lists/oss-security/2021/10/06/1