CVE-2020-2116 Explained : Impact and Mitigation
Learn about CVE-2020-2116, a cross-site request forgery vulnerability in Jenkins Pipeline GitHub Notify Step Plugin 1.0.4 and earlier, allowing attackers to access and capture stored credentials in Jenkins. Find mitigation steps and preventive measures.
A cross-site request forgery vulnerability in Jenkins Pipeline GitHub Notify Step Plugin 1.0.4 and earlier allows attackers to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.
Understanding CVE-2020-2116
This CVE involves a security vulnerability in the Jenkins Pipeline GitHub Notify Step Plugin that could be exploited by attackers to access and capture stored credentials in Jenkins.
What is CVE-2020-2116?
CVE-2020-2116 is a cross-site request forgery vulnerability in the Jenkins Pipeline GitHub Notify Step Plugin version 1.0.4 and earlier, enabling attackers to connect to a specified URL using obtained credentials IDs.
The Impact of CVE-2020-2116
The vulnerability allows attackers to potentially access and misuse sensitive credentials stored within Jenkins, posing a significant security risk to affected systems.
Technical Details of CVE-2020-2116
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability in Jenkins Pipeline GitHub Notify Step Plugin 1.0.4 and earlier permits attackers to exploit cross-site request forgery, leading to unauthorized access to Jenkins credentials.
Affected Systems and Versions
- Product: Jenkins Pipeline GitHub Notify Step Plugin
- Vendor: Jenkins project
- Versions Affected: <= 1.0.4 (unspecified/custom version)
Exploitation Mechanism
Attackers can leverage the vulnerability to connect to a specified URL using obtained credentials IDs, potentially compromising stored credentials in Jenkins.
Mitigation and Prevention
Protecting systems from CVE-2020-2116 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the Jenkins Pipeline GitHub Notify Step Plugin to a secure version.
- Monitor and restrict network access to Jenkins to prevent unauthorized connections.
Long-Term Security Practices
- Implement regular security audits and vulnerability scans on Jenkins and associated plugins.
- Educate users on secure credential management practices to minimize risks.
Patching and Updates
- Apply security patches and updates promptly to Jenkins and all related plugins to address known vulnerabilities.