CVE-2020-2188 : Security Advisory and Response

A missing permission check in Jenkins Amazon EC2 Plugin 1.50.1 and earlier versions allowed unauthorized users to access credentials stored in Jenkins.

Understanding CVE-2020-2188

This CVE involves a vulnerability in the Jenkins Amazon EC2 Plugin that could be exploited by users with Overall/Read access to enumerate credentials IDs.

What is CVE-2020-2188?

The vulnerability in Jenkins Amazon EC2 Plugin versions <= 1.50.1 allowed unauthorized users to access credential IDs stored in Jenkins.

The Impact of CVE-2020-2188

Unauthorized users with Overall/Read access could potentially access sensitive credential information stored in Jenkins, leading to a breach of confidentiality and potential misuse of credentials.

Technical Details of CVE-2020-2188

The technical details of the vulnerability in Jenkins Amazon EC2 Plugin are as follows:

Vulnerability Description

A missing permission check in form-related methods of Jenkins Amazon EC2 Plugin versions <= 1.50.1 allowed unauthorized users to enumerate credential IDs.

Affected Systems and Versions

Product: Jenkins Amazon EC2 Plugin
Vendor: Jenkins project
Versions Affected: <= 1.50.1
Version Type: Custom

Exploitation Mechanism

Unauthorized users with Overall/Read access could exploit the vulnerability to access credential IDs stored in Jenkins.

Mitigation and Prevention

To address CVE-2020-2188, consider the following mitigation and prevention measures:

Immediate Steps to Take

Upgrade Jenkins Amazon EC2 Plugin to a version beyond 1.50.1 to mitigate the vulnerability.
Restrict access permissions to sensitive credentials within Jenkins.

Long-Term Security Practices

Regularly review and update access control policies within Jenkins.
Conduct security training for users to raise awareness of proper credential handling.

Patching and Updates

Stay informed about security advisories from Jenkins project and promptly apply patches and updates to Jenkins and its plugins to address known vulnerabilities.