CVE-2018-1000406: jenkins Path Traversal

Vulnerability summary

CVE-2018-1000406 is a medium (CVSS 6.5) Path Traversal vulnerability in jenkins. EPSS estimates a 4.02% chance of exploitation in the next 30 days, higher than 90.4% of scored vulnerabilities.

Timeline

1. 09-01-2019
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

A path traversal vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/model/FileParameterValue.java that allows attackers with Job/Configure permission to define a file parameter with a file name outside the intended directory, resulting in an arbitrary file write on the Jenkins master when scheduling a build.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.