CVE-2020-2199: XSS vulnerability in Jenkins Subversion Partial Release Manager Plugin
Summary
CVE-2020-2199: XSS vulnerability in Jenkins Subversion Partial Release Manager Plugin. Affects org.jenkins-ci.plugins:svn-partial-release-mgr versions < 1.0.1. No fix is published. How to fix ↓
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Background
The Subversion Partial Release Manager Plugin is a Maven package used in Jenkins, an open-source automation server. This plugin allows users to manage partial releases of Subversion repositories. It provides functionality for creating and managing release branches, merging changes, and performing other release-related tasks. The plugin is widely used in software development and release processes.
Vulnerability Detail
The Subversion Partial Release Manager Plugin version 1.0.1 and earlier is vulnerable to a cross-site scripting (XSS) attack. The plugin fails to properly escape the error message for the repository URL field form validation. This allows an attacker to inject malicious scripts into the error message, which will be executed when viewed by a user with Job/Configure permission. The vulnerability can be exploited through reflected XSS attacks, where the malicious script is included in a URL and is executed when the URL is accessed. This can lead to unauthorized access, data theft, or other malicious actions depending on the capabilities of the injected script.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can restrict the Job/Configure permission to trusted users only. By limiting the access to the configuration of jobs using the plugin, the risk of exploitation can be reduced. However, this workaround may not be feasible in all scenarios, especially in environments where multiple users need to configure jobs.
Conclusion
The XSS vulnerability in the Subversion Partial Release Manager Plugin can pose a significant risk to Jenkins instances where users with Job/Configure permission are present. It is crucial to upgrade to a non-affected version of the plugin and apply the necessary security patches to prevent potential exploitation. Restricting the Job/Configure permission to trusted users can serve as a temporary workaround. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows an attacker to execute arbitrary scripts in the context of a user with Job/Configure permission. This can lead to unauthorized access, data theft, or other malicious actions depending on the capabilities of the injected script.
No, only versions 1.0.1 and earlier are affected. Users should upgrade to a non-affected version to mitigate the vulnerability.
No, this vulnerability requires the attacker to have Job/Configure permission in Jenkins. It cannot be exploited remotely without proper access to the Jenkins instance.
There is no known public exploit for this vulnerability at the time of this report. However, it is advisable to apply the necessary security patches to prevent any potential exploitation.
Yes, the CVSS score for this vulnerability is 6.1, indicating a moderate severity level.
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