CVE-2020-2137 : Vulnerability Insights and Analysis
Learn about CVE-2020-2137 affecting Jenkins Timestamper Plugin versions 1.11.1 and earlier, allowing stored XSS attacks by unsanitized HTML content. Find mitigation steps and best practices.
Jenkins Timestamper Plugin 1.11.1 and earlier versions are affected by a stored XSS vulnerability due to unsanitized HTML formatting in its output.
Understanding CVE-2020-2137
Jenkins Timestamper Plugin is vulnerable to stored XSS attacks, potentially exploitable by attackers with Overall/Administer permission.
What is CVE-2020-2137?
This CVE identifies a security issue in Jenkins Timestamper Plugin versions 1.11.1 and below, allowing attackers to execute malicious scripts through unsanitized HTML content.
The Impact of CVE-2020-2137
The vulnerability poses a risk of stored XSS attacks, enabling malicious actors to inject and execute scripts within the context of the affected application, compromising its integrity and potentially sensitive data.
Technical Details of CVE-2020-2137
Jenkins Timestamper Plugin's vulnerability can be further understood through the following technical aspects:
Vulnerability Description
The issue arises from the plugin's failure to properly sanitize HTML content in its output, leading to the execution of malicious scripts.
Affected Systems and Versions
- Product: Jenkins Timestamper Plugin
- Vendor: Jenkins project
- Versions Affected: <= 1.11.1 (unspecified version type: custom)
Exploitation Mechanism
The vulnerability can be exploited by attackers with Overall/Administer permission to inject and execute malicious scripts through the plugin's output.
Mitigation and Prevention
To address CVE-2020-2137 and enhance security measures, consider the following steps:
Immediate Steps to Take
- Upgrade Jenkins Timestamper Plugin to a patched version that addresses the XSS vulnerability.
- Restrict Overall/Administer permissions to trusted users only.
Long-Term Security Practices
- Regularly monitor and update plugins to ensure the latest security patches are applied.
- Implement content security policies to mitigate XSS risks.
Patching and Updates
- Stay informed about security advisories from Jenkins project and promptly apply recommended patches to secure the environment.