CVE-2020-2293: Arbitrary file read vulnerability in Jenkins Persona Plugin
Summary
CVE-2020-2293: Arbitrary file read vulnerability in Jenkins Persona Plugin. Affects org.jenkins-ci.plugins:persona versions < 2.4. No fix is published. How to fix ↓
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Background
The Jenkins Persona Plugin is a Maven-based plugin that provides user impersonation functionality in Jenkins. It allows users to assume the identity of other users and perform actions on their behalf. This plugin is commonly used in Jenkins instances to facilitate testing and troubleshooting workflows. However, versions 2.4 and earlier of the Persona Plugin are vulnerable to an arbitrary file read vulnerability.
Vulnerability Detail
The arbitrary file read vulnerability in Jenkins Persona Plugin allows users with Overall/Read permission to read arbitrary files on the Jenkins controller. This means that an authenticated user with the necessary permissions can access sensitive information stored on the Jenkins controller, potentially leading to unauthorized disclosure of confidential data. The vulnerability has a CVSS score of 6.5, indicating a moderate severity level.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If upgrading to a patched version of the Persona Plugin is not immediately feasible, users can mitigate the risk by restricting the permissions of users with Overall/Read access. By limiting access to sensitive files and directories, the impact of the vulnerability can be minimized. Additionally, it is advisable to regularly monitor and review access logs to detect any unauthorized file access attempts.
Conclusion
The arbitrary file read vulnerability in Jenkins Persona Plugin can be mitigated by upgrading to a patched version of the plugin and implementing proper access controls. Regular monitoring and review of access logs are also recommended to detect any unauthorized file access attempts. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows users with Overall/Read permission to read arbitrary files on the Jenkins controller, potentially leading to unauthorized disclosure of sensitive information.
Users of Jenkins Persona Plugin versions 2.4 and earlier are affected by this vulnerability.
Yes, users can mitigate the risk by restricting the permissions of users with Overall/Read access and regularly monitoring access logs.
You can use Vulert's playground (https://vulert.com/scanner) to check if your Jenkins instance is affected by this vulnerability. Simply provide your pom.xml file, and Vulert will analyze it for any open-source vulnerabilities, including this one.
For more information about this vulnerability, you can refer to the GitHub Security Advisory database entry at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-5mfw-p6qv-wgvv/GHSA-5mfw-p6qv-wgvv.json
