CVE-2022-43420 : What You Need to Know

Jenkins Contrast Continuous Application Security Plugin 3.9 and earlier versions are affected by a stored cross-site scripting (XSS) vulnerability. Attackers with the ability to control or modify Contrast service API responses can exploit this issue.

Understanding CVE-2022-43420

This CVE details a security vulnerability in Jenkins Contrast Continuous Application Security Plugin.

What is CVE-2022-43420?

CVE-2022-43420 involves a lack of data escaping in the plugin, allowing attackers to conduct stored cross-site scripting attacks by manipulating Contrast service API responses.

The Impact of CVE-2022-43420

The vulnerability poses a risk of unauthorized script execution, potentially leading to data theft, privilege escalation, or complete system compromise.

Technical Details of CVE-2022-43420

This section delves into the specifics of the vulnerability.

Vulnerability Description

Jenkins Contrast Continuous Application Security Plugin 3.9 and earlier fail to properly sanitize data from Contrast service responses, enabling XSS attacks.

Affected Systems and Versions

Product: Jenkins Contrast Continuous Application Security Plugin
Vendor: Jenkins project
Versions Affected: 3.9 and earlier

Exploitation Mechanism

Attackers who can manipulate or control Contrast service API responses can inject malicious scripts, leading to XSS attacks.

Mitigation and Prevention

Protecting systems from CVE-2022-43420 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade Jenkins Contrast Continuous Application Security Plugin to a non-vulnerable version.
Monitor Contrast service API responses for suspicious activity.

Long-Term Security Practices

Implement input validation and output encoding in applications.
Conduct regular security audits and code reviews.

Patching and Updates

Stay informed about security updates from Jenkins project and promptly apply patches to mitigate known vulnerabilities.