CVE-2017-1000398 : Security Advisory and Response

Jenkins prior to version 2.73.1 had a vulnerability in its remote API that allowed unauthorized access to task information on specific agents. This issue was addressed in version 2.83 and later.

Understanding CVE-2017-1000398

This CVE relates to a security vulnerability in Jenkins that exposed task information to unauthorized users.

What is CVE-2017-1000398?

The remote API in Jenkins versions prior to 2.73.1 allowed users to view task information on specific agents, even if they lacked proper permissions. This could lead to unauthorized access to sensitive data.

The Impact of CVE-2017-1000398

The vulnerability could result in unauthorized users accessing task information on agents, potentially compromising sensitive data and violating security protocols.

Technical Details of CVE-2017-1000398

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw in the remote API of Jenkins versions prior to 2.73.1 allowed users to access task information on specific agents without proper permissions, potentially exposing sensitive data.

Affected Systems and Versions

Jenkins versions prior to 2.73.1
Jenkins versions prior to 2.83

Exploitation Mechanism

Unauthorized users could exploit the vulnerability by accessing the /computer/(agent-name)/api endpoint to view task information on specific agents.

Mitigation and Prevention

To address and prevent this vulnerability, follow the steps below.

Immediate Steps to Take

Upgrade Jenkins to version 2.83 or later to mitigate the vulnerability.
Restrict access to the /computer/(agent-name)/api endpoint to authorized users only.

Long-Term Security Practices

Regularly review and update user permissions to ensure proper access control.
Conduct security audits to identify and address any similar vulnerabilities.

Patching and Updates

Stay informed about security advisories from Jenkins and promptly apply patches and updates to secure your system.