Jenkins 2.318 and previous versions, LTS 2.303.2 and previous versions does not check agent-to-controller access to create parent directories in FilePath#mkdirs.
A security issue has been found in Jenkins before version 2319 FilePath#mkdirs does not check permission to create parent directories This allows agent processes to read and write arbitrary files on the Jenkins controller file system, and obtain some information about Jenkins controller file systems ...
Subject: Multiple vulnerabilities in Jenkins and Jenkins plugins
Jenkins is an open source automation server which enables developers around
the world to reliably build, test, and deploy their software
The following releases contain fixes for security vulnerabilities:
* Jenkins 2319
* Jenkins LTS 23033
* Subversion Plugin 2151
Summaries ...
Vulmon