Posts Path Traversal | Jenkins

Path Traversal | Jenkins

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Software: Jenkins

Version: 2.314

Bug: Path Traversal

CVE: CVE-2021-21683

Description of the product:

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 allowing attackers with Overall/Read permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of arbitrary files.


The vulnerability allows a remote attacker to perform directory traversal attacks. Also The vulnerability exists due to input validation error when processing directory traversal sequences on Windows.


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