CVE-2023-37943 : Security Advisory and Response

Jenkins Active Directory Plugin 2.30 and earlier versions are impacted by CVE-2023-37943, which allows attackers to capture network traffic between the Jenkins controller and Active Directory servers to obtain Active Directory credentials.

Understanding CVE-2023-37943

What is CVE-2023-37943?

CVE-2023-37943 is a vulnerability in Jenkins Active Directory Plugin versions 2.30 and earlier, where the plugin ignores certain security options, leading to the exposure of Active Directory credentials.

The Impact of CVE-2023-37943

The vulnerability permits attackers to intercept network traffic and retrieve sensitive Active Directory credentials, potentially compromising the security and integrity of the system.

Technical Details of CVE-2023-37943

Vulnerability Description

Jenkins Active Directory Plugin versions 2.30 and before fail to enforce the "Require TLS" and "StartTls" options, enabling unencrypted connection tests to Active Directory, facilitating credential theft.

Affected Systems and Versions

Product: Jenkins Active Directory Plugin
Vendor: Jenkins Project
Affected Version: 2.30 and earlier (Version Type: Maven)

Exploitation Mechanism

Attackers can exploit this vulnerability by intercepting network traffic between the Jenkins controller and Active Directory servers to eavesdrop and capture unencrypted Active Directory credentials.

Mitigation and Prevention

Immediate Steps to Take

To mitigate the risk associated with CVE-2023-37943, it is recommended to update the Jenkins Active Directory Plugin to a secure version that addresses this vulnerability.

Long-Term Security Practices

Implementing network encryption protocols and enforcing secure communication practices between Jenkins and Active Directory servers can prevent unauthorized access to sensitive credentials.

Patching and Updates

Regularly monitor security advisories from Jenkins and apply patches promptly to stay protected against the latest security threats.