CVE-2020-2271 Explained : Impact and Mitigation

Jenkins Locked Files Report Plugin 1.6 and earlier versions are affected by a stored cross-site scripting (XSS) vulnerability due to unescaped locked files' names in tooltips.

Understanding CVE-2020-2271

Jenkins Locked Files Report Plugin is susceptible to a stored XSS attack, potentially exploitable by attackers with Job/Configure permission.

What is CVE-2020-2271?

The vulnerability in Jenkins Locked Files Report Plugin allows attackers to execute malicious scripts by manipulating locked files' names in tooltips.

The Impact of CVE-2020-2271

This vulnerability could be exploited by malicious users with specific permissions to inject and execute arbitrary scripts, compromising the security and integrity of the Jenkins environment.

Technical Details of CVE-2020-2271

Jenkins Locked Files Report Plugin's vulnerability details and affected systems.

Vulnerability Description

The issue arises from the failure to properly escape locked files' names in tooltips, enabling attackers to inject malicious scripts.

Affected Systems and Versions

Product: Jenkins Locked Files Report Plugin
Vendor: Jenkins project
Versions Affected: 1.6 and earlier

Exploitation Mechanism

Attackers with Job/Configure permission can exploit this vulnerability by manipulating locked files' names to inject and execute malicious scripts.

Mitigation and Prevention

Steps to mitigate and prevent the exploitation of CVE-2020-2271.

Immediate Steps to Take

Update Jenkins Locked Files Report Plugin to version 1.7 or later to address the vulnerability.
Restrict Job/Configure permissions to trusted users only.

Long-Term Security Practices

Regularly monitor and audit Jenkins plugins for security vulnerabilities.
Educate users on secure coding practices to prevent XSS attacks.

Patching and Updates

Apply security patches and updates promptly to ensure the latest fixes are in place.