CVE-2020-2266 Explained : Impact and Mitigation

Jenkins Description Column Plugin 1.3 and earlier versions are vulnerable to stored cross-site scripting (XSS) attacks.

Understanding CVE-2020-2266

Jenkins Description Column Plugin allows attackers with Job/Configure permission to exploit a stored XSS vulnerability.

What is CVE-2020-2266?

The vulnerability in Jenkins Description Column Plugin allows attackers to execute malicious scripts in the context of a user's browser.

The Impact of CVE-2020-2266

This vulnerability can be exploited by attackers with Job/Configure permission to perform various malicious actions, such as stealing sensitive information or performing unauthorized actions on behalf of the user.

Technical Details of CVE-2020-2266

Jenkins Description Column Plugin vulnerability details.

Vulnerability Description

Jenkins Description Column Plugin 1.3 and earlier versions do not properly escape the job description in the column tooltip, leading to a stored cross-site scripting (XSS) vulnerability.

Affected Systems and Versions

Product: Jenkins Description Column Plugin
Vendor: Jenkins project
Versions Affected:
Jenkins Description Column Plugin <= 1.3 (custom version)
Jenkins Description Column Plugin next of 1.3 (custom version)

Exploitation Mechanism

Attackers with Job/Configure permission can exploit the vulnerability by injecting malicious scripts into the job description field.

Mitigation and Prevention

Protecting systems from CVE-2020-2266.

Immediate Steps to Take

Upgrade Jenkins Description Column Plugin to a patched version.
Restrict Job/Configure permissions to trusted users.

Long-Term Security Practices

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

Patching and Updates

Apply security patches and updates provided by Jenkins project to address the vulnerability.