CVE-2020-2176 Explained : Impact and Mitigation

Jenkins useMango Runner Plugin 1.4 and earlier versions are affected by a cross-site scripting (XSS) vulnerability due to improper handling of values from the useMango service.

Understanding CVE-2020-2176

This CVE involves a security issue in the Jenkins useMango Runner Plugin that could be exploited by attackers to execute XSS attacks.

What is CVE-2020-2176?

Multiple form validation endpoints in Jenkins useMango Runner Plugin 1.4 and earlier versions are susceptible to a cross-site scripting vulnerability. Attackers with control over values returned from the useMango service can exploit this flaw.

The Impact of CVE-2020-2176

The vulnerability allows malicious users to inject and execute arbitrary scripts in the context of the affected site, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-2176

The technical aspects of the CVE provide insights into the vulnerability and its implications.

Vulnerability Description

The issue arises from the lack of proper escaping of values received from the useMango service, enabling attackers to inject malicious scripts.

Affected Systems and Versions

Product: Jenkins useMango Runner Plugin
Vendor: Jenkins project
Versions Affected: <= 1.4 (unspecified version type)

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating values returned from the useMango service to execute XSS attacks.

Mitigation and Prevention

Protecting systems from CVE-2020-2176 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Jenkins useMango Runner Plugin to a patched version that addresses the XSS vulnerability.
Implement input validation mechanisms to sanitize user-controlled inputs.

Long-Term Security Practices

Regularly monitor and audit plugins and extensions for security vulnerabilities.
Educate developers on secure coding practices to prevent XSS and other injection attacks.

Patching and Updates

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