CVE-2022-41239 : Exploit Details and Defense Strategies

Jenkins DotCi Plugin version 2.40.00 and earlier is affected by a stored cross-site scripting (XSS) vulnerability due to improper handling of GitHub user name parameters. This vulnerability could allow an attacker to execute malicious scripts in the context of a user's browser.

Understanding CVE-2022-41239

This CVE entry pertains to a security issue found in Jenkins DotCi Plugin versions 2.40.00 and below.

What is CVE-2022-41239?

CVE-2022-41239 highlights a flaw where Jenkins DotCi Plugin fails to properly escape GitHub user names in commit notifications, leading to a stored cross-site scripting vulnerability.

The Impact of CVE-2022-41239

The vulnerability could be exploited by attackers to inject malicious scripts into Jenkins build cause notifications, potentially compromising the integrity of the CI/CD process.

Technical Details of CVE-2022-41239

This section dives into the specifics of the vulnerability in Jenkins DotCi Plugin.

Vulnerability Description

The issue arises from the lack of proper escaping of GitHub user names in commit notifications, allowing attackers to insert and execute arbitrary scripts.

Affected Systems and Versions

Jenkins DotCi Plugin versions 2.40.00 and earlier are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a malicious GitHub user name parameter in commit notifications, leveraging the lack of input validation.

Mitigation and Prevention

Discover how to address and prevent CVE-2022-41239 from affecting your Jenkins integration.

Immediate Steps to Take

Upgrade Jenkins DotCi Plugin to a version beyond 2.40.00 to mitigate the XSS vulnerability.
Implement proper input validation and output encoding mechanisms in your build notifications.

Long-Term Security Practices

Regularly monitor Jenkins security advisories and update to the latest plugin versions promptly.
Educate development teams on secure coding practices and the risks of cross-site scripting vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by the Jenkins project to safeguard your CI/CD pipelines.