CVE-2019-16564 : Exploit Details and Defense Strategies

The Jenkins Pipeline Aggregator View Plugin versions 1.8 and earlier contain a security vulnerability that allows attackers to exploit stored cross-site scripting (XSS) due to improper escaping of displayed information.

Understanding CVE-2019-16564

This CVE involves a security flaw in the Jenkins Pipeline Aggregator View Plugin that could be exploited by attackers to impact the content displayed on the view.

What is CVE-2019-16564?

The Jenkins Pipeline Aggregator View Plugin versions 1.8 and earlier do not properly escape information displayed on the view, leading to a stored XSS vulnerability that attackers can exploit by manipulating view content like job display names or pipeline stage names.

The Impact of CVE-2019-16564

This vulnerability allows attackers with the ability to modify view content to execute malicious scripts within the context of the user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2019-16564

The technical aspects of this CVE include:

Vulnerability Description

Jenkins Pipeline Aggregator View Plugin 1.8 and earlier do not escape displayed information, enabling stored XSS attacks.

Affected Systems and Versions

Product: Jenkins Pipeline Aggregator View Plugin
Vendor: Jenkins project
Versions Affected: <= 1.8

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the content of the view, such as job display names or pipeline stage names.

Mitigation and Prevention

To address CVE-2019-16564, consider the following steps:

Immediate Steps to Take

Upgrade the Jenkins Pipeline Aggregator View Plugin to a version beyond 1.8 that includes a fix for the XSS vulnerability.
Monitor and restrict access to view content to prevent unauthorized modifications.

Long-Term Security Practices

Implement secure coding practices to properly escape user-generated content displayed on web pages.
Regularly update and patch Jenkins plugins to address known security issues.

Patching and Updates

Stay informed about security advisories from Jenkins project and promptly apply patches to mitigate potential vulnerabilities.