CVE-2020-2264 : Exploit Details and Defense Strategies

Jenkins Custom Job Icon Plugin 0.2 and earlier versions are susceptible to a stored cross-site scripting (XSS) vulnerability due to inadequate job description escaping in tooltips.

Understanding CVE-2020-2264

This CVE pertains to a security issue in the Jenkins Custom Job Icon Plugin.

What is CVE-2020-2264?

CVE-2020-2264 is a vulnerability in the Jenkins Custom Job Icon Plugin that allows attackers with Job/Configure permission to exploit a stored cross-site scripting vulnerability.

The Impact of CVE-2020-2264

The vulnerability can be exploited by attackers to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-2264

The technical aspects of the vulnerability are as follows:

Vulnerability Description

Jenkins Custom Job Icon Plugin 0.2 and earlier versions lack proper job description escaping in tooltips, enabling stored XSS attacks.

Affected Systems and Versions

Product: Jenkins Custom Job Icon Plugin
Vendor: Jenkins project
Vulnerable Versions: 0.2 and earlier

Exploitation Mechanism

Attackers with Job/Configure permission can inject malicious scripts into job descriptions, leading to XSS attacks.

Mitigation and Prevention

Steps to address and prevent the vulnerability:

Immediate Steps to Take

Upgrade Jenkins Custom Job Icon Plugin to a non-vulnerable version.
Restrict Job/Configure permissions to trusted users.

Long-Term Security Practices

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

Patching and Updates

Apply security patches provided by Jenkins project promptly to mitigate the vulnerability.