CVE-2022-30963: Cross-site Scripting in Jenkins JDK Parameter Plugin
Summary
CVE-2022-30963: Cross-site Scripting in Jenkins JDK Parameter Plugin. Affects org.jenkins-ci.plugins:JDK_Parameter_Plugin versions < 1.0. No fix is published. How to fix ↓
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Background
The Jenkins JDK Parameter Plugin is a Maven package that provides functionality for defining and managing JDK parameters in Jenkins. JDK parameters allow users to specify the JDK (Java Development Kit) version to be used for a particular build. This plugin is commonly used in Jenkins instances to configure and manage build environments. However, versions 1.0 and earlier of the plugin are vulnerable to a stored cross-site scripting (XSS) attack.
Vulnerability Detail
The vulnerability in the Jenkins JDK Parameter Plugin allows attackers with Item/Configure permission to exploit stored cross-site scripting (XSS) vulnerabilities. The plugin does not properly escape the name and description of JDK parameters when displaying them on views that show parameters. This allows an attacker to inject malicious scripts into the parameter name or description, which will be executed when the parameter is displayed on vulnerable pages. To exploit this vulnerability, the parameters must be listed on pages like 'Build With Parameters' and 'Parameters' that are not hardened against XSS attacks. Jenkins (core) has implemented measures to prevent exploitation of similar vulnerabilities on these pages since version 2.44 and LTS 2.32.2 as part of the SECURITY-353 / CVE-2017-2601 fix. Some plugins have also been updated to prevent exploitation by default.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround provided for this vulnerability. However, users can mitigate the risk by hardening the vulnerable pages, such as the 'Build With Parameters' and 'Parameters' pages, to prevent XSS attacks. This can be done by implementing input validation and output encoding to ensure that user-supplied data is properly sanitized and rendered safely.
Conclusion
The Jenkins JDK Parameter Plugin is vulnerable to a stored cross-site scripting (XSS) attack, which can be exploited by attackers with Item/Configure permission. To mitigate this vulnerability, it is crucial to upgrade to a non-affected version of the plugin and ensure that the Jenkins instance is running an updated version of Jenkins (core). Hardening the vulnerable pages against XSS attacks is also recommended. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for org.jenkins-ci.plugins:JDK_Parameter_Plugin →
FAQ
This vulnerability allows an attacker with Item/Configure permission to execute arbitrary scripts in the context of the vulnerable page. This can lead to various malicious activities, such as stealing sensitive information, performing actions on behalf of the user, or defacing the Jenkins instance.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your Jenkins instance is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities, using just the pom.xml file. It does not require access to the code or installation.
Upgrading to a non-affected version of the Jenkins JDK Parameter Plugin and Jenkins (core) is the recommended mitigation for this vulnerability. Additionally, hardening the vulnerable pages to prevent XSS attacks can further mitigate the risk.
There is no information available regarding exploitation of this specific vulnerability in the wild. However, since XSS vulnerabilities can be highly damaging, it is important to address this issue promptly to prevent potential attacks.
You can find more information about this vulnerability in the Jenkins Security Advisory (https://www.jenkins.io/security/advisory/2022-05-18/). It provides detailed information about the vulnerability, its impact, and recommended actions to mitigate the risk.
