CVE-2020-2181 Explained : Impact and Mitigation

Jenkins Credentials Binding Plugin 1.22 and earlier has a vulnerability that exposes secrets in the build log, affecting the Jenkins project.

Understanding CVE-2020-2181

This CVE involves the exposure of secrets in the build log due to a lack of masking in Jenkins Credentials Binding Plugin.

What is CVE-2020-2181?

The vulnerability in Jenkins Credentials Binding Plugin allows secrets to be visible in the build log when there are no build steps, potentially exposing sensitive information.

The Impact of CVE-2020-2181

The exposure of secrets in the build log can lead to unauthorized access to sensitive data, compromising the security and confidentiality of the information.

Technical Details of CVE-2020-2181

The technical aspects of the vulnerability in Jenkins Credentials Binding Plugin.

Vulnerability Description

Jenkins Credentials Binding Plugin 1.22 and earlier fail to mask secrets in the build log, revealing sensitive information.

Affected Systems and Versions

Product: Jenkins Credentials Binding Plugin
Vendor: Jenkins project
Versions Affected: <= 1.22 (unspecified version type: custom)

Exploitation Mechanism

The vulnerability is exploited by executing a build without any build steps, causing the secrets to be displayed in the build log.

Mitigation and Prevention

Measures to address and prevent the CVE-2020-2181 vulnerability.

Immediate Steps to Take

Upgrade Jenkins Credentials Binding Plugin to a version beyond 1.22 that includes the fix.
Avoid running builds without build steps to prevent secret exposure.

Long-Term Security Practices

Regularly review and update Jenkins plugins to ensure the latest security patches are applied.
Implement access controls and encryption mechanisms to protect sensitive data.

Patching and Updates

Ensure timely installation of security patches and updates for Jenkins Credentials Binding Plugin to mitigate the vulnerability.