CVE-2020-2091 Explained : Impact and Mitigation

CVE-2020-2091 is a vulnerability in the Jenkins Amazon EC2 Plugin that allows attackers with specific permissions to connect to a URL within the AWS region using unauthorized credentials.

Understanding CVE-2020-2091

This CVE identifies a security issue in the Jenkins Amazon EC2 Plugin that could be exploited by attackers with certain permissions.

What is CVE-2020-2091?

The vulnerability in Jenkins Amazon EC2 Plugin version 1.47 and earlier enables attackers with Overall/Read permission to connect to a specified URL within the AWS region using unauthorized credentials IDs.

The Impact of CVE-2020-2091

This vulnerability could lead to unauthorized access to AWS resources and potential misuse of sensitive data stored within the AWS environment.

Technical Details of CVE-2020-2091

This section provides technical insights into the vulnerability.

Vulnerability Description

A missing permission check in Jenkins Amazon EC2 Plugin 1.47 and earlier allows attackers with specific permissions to connect to an attacker-specified URL within the AWS region using unauthorized credentials IDs.

Affected Systems and Versions

Product: Jenkins Amazon EC2 Plugin
Vendor: Jenkins project
Affected Versions:
Jenkins Amazon EC2 Plugin <= 1.47

Exploitation Mechanism

Attackers with Overall/Read permission can exploit this vulnerability by connecting to a specified URL within the AWS region using unauthorized credentials IDs.

Mitigation and Prevention

Protect your systems from CVE-2020-2091 with these mitigation strategies.

Immediate Steps to Take

Upgrade Jenkins Amazon EC2 Plugin to a version beyond 1.47.
Restrict permissions to prevent unauthorized access.

Long-Term Security Practices

Regularly review and update permissions and access controls.
Conduct security training to educate users on best practices.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and enhance system security.