Path traversal vulnerability on Windows in Jenkins
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.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-21683US | medium6.5 | — | ||
The file browser in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files as absolute on Windows, resulting in a path traversal vulnerability allowin… | ||||
references
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2021/10/06/1WEB
- https://github.com/jenkinsci/jenkinsPACKAGE
- https://github.com/jenkinsci/jenkins/commit/3f679fc12d073676a4441d3fa8b5fff34c07662fWEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-21683ADVISORY
- https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2481WEB
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