CVE-2019-1003023 : Security Advisory and Response
Learn about CVE-2019-1003023, a security flaw in Jenkins Warnings Next Generation Plugin allowing attackers to manipulate input and display unauthorized HTML content. Find mitigation steps here.
A security vulnerability in Jenkins Warnings Next Generation Plugin version 1.0.1 and earlier allows attackers to manipulate input, potentially leading to arbitrary HTML content being displayed by Jenkins.
Understanding CVE-2019-1003023
This CVE involves a cross-site scripting vulnerability in the Jenkins Warnings Next Generation Plugin.
What is CVE-2019-1003023?
This CVE identifies a security flaw in Jenkins Warnings Next Generation Plugin versions 1.0.1 and earlier, enabling attackers to control the warnings parser input and display unauthorized HTML content.
The Impact of CVE-2019-1003023
The vulnerability could allow malicious actors to execute cross-site scripting attacks, potentially leading to unauthorized access or data manipulation within Jenkins instances.
Technical Details of CVE-2019-1003023
This section provides detailed technical insights into the CVE.
Vulnerability Description
The vulnerability exists in specific Java files of the plugin, including DetailsTableModel.java, SourceDetail.java, SourcePrinter.java, Sanitizer.java, and DuplicateCodeScanner.java, allowing attackers to manipulate input and display arbitrary HTML content.
Affected Systems and Versions
- Product: Jenkins Warnings Next Generation Plugin
- Vendor: Jenkins project
- Versions affected: 1.0.1 and earlier
Exploitation Mechanism
Attackers with the ability to control the warnings parser input can exploit this vulnerability to inject and render unauthorized HTML content within Jenkins.
Mitigation and Prevention
Protecting systems from CVE-2019-1003023 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the Jenkins Warnings Next Generation Plugin to a patched version that addresses the vulnerability.
- Monitor and restrict input manipulation capabilities within Jenkins to prevent unauthorized HTML rendering.
Long-Term Security Practices
- Regularly audit and update plugins and dependencies to mitigate potential security risks.
- Educate users on secure coding practices to prevent cross-site scripting vulnerabilities.
Patching and Updates
Ensure timely installation of security patches and updates provided by Jenkins to address known vulnerabilities.