CVE-2022-36890: Jenkins Deployer Framework Plugin Path Traversal Vulnerability
Summary
CVE-2022-36890: Jenkins Deployer Framework Plugin vulnerable to Path Traversal. Affects org.jenkins-ci.plugins:deployer-framework versions < 86.v7b_a_4a_55b_f3ec. Fixed in 86.v7b_a_4a_55b_f3ec. How to fix ↓
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Background
The Jenkins Deployer Framework Plugin is a Maven-based plugin that allows users to deploy artifacts to remote servers. It provides a set of methods for validating form inputs and managing deployment configurations. The plugin is widely used in Jenkins environments for continuous integration and deployment processes.
Vulnerability Detail
The Jenkins Deployer Framework Plugin version 85.v1d1888e8c021 and earlier is vulnerable to a Path Traversal attack. The plugin does not properly restrict the name of files in methods implementing form validation. This allows attackers with Item/Read permission to check for the existence of an attacker-specified file path on the Jenkins controller file system. An attacker could exploit this vulnerability to gain unauthorized access to sensitive files, modify configurations, or execute arbitrary code on the Jenkins controller.
How To Fix
Minimum fixed version
86.v7b_a_4a_55b_f3ec
This is the first release that contains the fix.
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Workaround
If upgrading the plugin is not immediately possible, a temporary workaround is to restrict access to the Jenkins controller file system and limit the permissions of users with Item/Read permission. Additionally, it is recommended to regularly monitor the Jenkins logs for any suspicious activity or unauthorized access attempts.
Conclusion
The Jenkins Deployer Framework Plugin is vulnerable to a path traversal attack, allowing unauthorized access to sensitive files and potential execution of arbitrary code. It is crucial for users to upgrade to the latest secure version of the plugin (86.v7b_a_4a_55b_f3ec or later) to mitigate this vulnerability. Regular monitoring of Jenkins logs and access restrictions to the controller file system are recommended security practices. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability allows attackers to traverse the file system and potentially access sensitive files or execute arbitrary code on the Jenkins controller. It can lead to unauthorized access, data breaches, and disruption of the Jenkins environment.
Users of Jenkins Deployer Framework Plugin versions 85.v1d1888e8c021 and earlier are affected by this vulnerability. It is recommended for all users of the plugin to upgrade to the latest secure version.
At the time of this advisory, there are no known public exploits specifically targeting this vulnerability. However, it is important to apply the recommended security updates to mitigate the risk of potential attacks.
No, this vulnerability requires an attacker to have Item/Read permission on the Jenkins controller. It cannot be exploited remotely without prior access to the Jenkins environment.
Yes, the CVSS score for this vulnerability is 4.3, indicating a moderate severity level. It is important to address this vulnerability to prevent potential security breaches.
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