CVE-2023-30517

Vulnerability

Details

The Jenkins NeuVector Vulnerability Scanner Plugin versions 1.22 and earlier unconditionally disables SSL/TLS certificate and hostname validation when connecting to a configured NeuVector Vulnerability Scanner server. This means the plugin does not verify the identity of the server it communicates with, nor does it ensure the integrity of the encrypted connection [1][3].

Exploitation

An attacker with network access to the Jenkins environment can perform a man-in-the-middle attack between Jenkins and the NeuVector server. By presenting a self-signed or otherwise invalid certificate, the attacker can intercept and potentially modify the communication. No authentication is required beyond being in a position to intercept network traffic.

Impact

Successful exploitation allows the attacker to eavesdrop on sensitive data transmitted between Jenkins and the NeuVector scanner, such as scan results or credentials, and to inject malicious responses. This could lead to further compromise of the Jenkins instance or the systems being scanned.

Mitigation

As of the advisory publication date, no fix has been released for this plugin. The Jenkins Security Advisory lists it as an unresolved security issue [1]. Administrators should consider alternative methods for secure communication or restrict network access to limit exposure.