CVE-2020-2259 : Exploit Details and Defense Strategies
Learn about CVE-2020-2259 affecting Jenkins computer-queue-plugin Plugin 1.5 and earlier versions. Understand the XSS vulnerability impact, affected systems, and mitigation steps.
Jenkins computer-queue-plugin Plugin 1.5 and earlier versions are affected by a stored cross-site scripting (XSS) vulnerability.
Understanding CVE-2020-2259
Jenkins computer-queue-plugin Plugin version 1.5 and earlier are susceptible to a stored XSS vulnerability due to improper handling of agent names in tooltips.
What is CVE-2020-2259?
The vulnerability in Jenkins computer-queue-plugin Plugin allows attackers with Agent/Configure permission to exploit a stored cross-site scripting vulnerability by injecting malicious scripts into the agent name field.
The Impact of CVE-2020-2259
This vulnerability could be exploited by malicious actors to execute arbitrary scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2020-2259
Jenkins computer-queue-plugin Plugin version 1.5 and earlier are affected by the following:
Vulnerability Description
- Jenkins computer-queue-plugin Plugin 1.5 and earlier versions do not properly escape the agent name in tooltips, allowing for stored cross-site scripting attacks.
Affected Systems and Versions
- Product: Jenkins computer-queue-plugin Plugin
- Vendor: Jenkins project
- Versions Affected: <= 1.5
- Version Type: Custom
Exploitation Mechanism
- Attackers with Agent/Configure permission can exploit the vulnerability by injecting malicious scripts into the agent name field.
Mitigation and Prevention
It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-2259:
Immediate Steps to Take
- Upgrade Jenkins computer-queue-plugin Plugin to a version beyond 1.5 that includes a patch for the XSS vulnerability.
- Restrict access to the Agent/Configure permission to trusted users only.
Long-Term Security Practices
- Regularly monitor and audit plugins for security vulnerabilities.
- Educate users on safe coding practices to prevent XSS attacks.
Patching and Updates
- Stay informed about security advisories from Jenkins project and promptly apply patches and updates to address known vulnerabilities.