CVE-2017-1000403 : Security Advisory and Response

The Jenkins Speaks! Plugin allows users with specific permissions to execute custom Groovy code, potentially leading to elevated privileges.

Understanding CVE-2017-1000403

The vulnerability in the Jenkins Speaks! Plugin affects all versions, enabling users to run arbitrary Groovy code within the Jenkins JVM.

What is CVE-2017-1000403?

The Jenkins Speaks! Plugin vulnerability permits users with Job/Configure permission to execute customized Groovy code within the Jenkins JVM, granting elevated privileges to Overall/Run Scripts.

The Impact of CVE-2017-1000403

Users can run arbitrary Groovy code, potentially compromising the security of the Jenkins environment.
Elevated privileges to Overall/Run Scripts can lead to unauthorized access and malicious activities.

Technical Details of CVE-2017-1000403

The technical details of the CVE-2017-1000403 vulnerability are as follows:

Vulnerability Description

The Jenkins Speaks! Plugin allows users with Job/Configure permission to execute custom Groovy code within the Jenkins JVM, leading to elevated privileges.

Affected Systems and Versions

All versions of the Jenkins Speaks! Plugin are affected by this vulnerability.

Exploitation Mechanism

Users exploit this vulnerability by leveraging Job/Configure permissions to run arbitrary Groovy code within the Jenkins JVM.

Mitigation and Prevention

To address CVE-2017-1000403, consider the following mitigation strategies:

Immediate Steps to Take

Disable the Jenkins Speaks! Plugin if not essential for operations.
Restrict Job/Configure permissions to trusted users only.

Long-Term Security Practices

Regularly review and update Jenkins plugins to ensure the latest security patches are applied.
Implement the principle of least privilege to restrict access based on job requirements.

Patching and Updates

Apply patches and updates provided by Jenkins to fix the vulnerability in the Jenkins Speaks! Plugin.