CVE-2019-16569

Vulnerability

Description

Jenkins Mantis Plugin versions 0.26 and earlier are vulnerable to a cross-site request forgery (CSRF) flaw. The plugin does not properly validate requests, allowing an attacker to trick a Jenkins user with sufficient permissions into making an unintended request [1].

Exploitation

An attacker can exploit this CSRF vulnerability to cause Jenkins to connect to an attacker-specified web server using attacker-specified credentials [2]. This requires the victim to be authenticated and to click a malicious link or visit a crafted webpage while logged into Jenkins. The attack does not require any special privileges beyond those of the victim user.

Impact

Successful exploitation could allow the attacker to perform actions such as sending sensitive Jenkins data to an external server or using Jenkins as a proxy to launch further attacks [1][2]. The specific impact depends on the attacker's objectives, but could include information disclosure or resource abuse.

Mitigation

Jenkins has acknowledged the vulnerability but no fix has been released as of the advisory [2][3]. Users are advised to restrict access to Jenkins or disable the Mantis Plugin if possible until a patch becomes available.