CVE-2022-34205

Vulnerability

A cross-site request forgery (CSRF) vulnerability exists in the Jenkins Jianliao Notification Plugin versions 1.1 and earlier. The plugin fails to validate or require a CSRF token when performing HTTP requests, allowing an attacker to craft a malicious web page that triggers unauthorized HTTP POST requests to an attacker-specified URL when a Jenkins administrator or user with appropriate permissions visits the page [1].

Exploitation

An attacker can exploit this vulnerability by crafting a malicious link or web page that, when visited by an authenticated Jenkins user, triggers an HTTP POST request to an attacker-controlled URL. This requires no authentication from the attacker, but relies on the victim being logged into Jenkins and having permissions to use the plugin [1][2].

Impact

Successful exploitation allows an attacker to send arbitrary HTTP POST requests to any URL specified by the attacker. This could lead to various malicious actions, such as triggering unwanted operations on internal systems accessible from the Jenkins server or exfiltrating data, depending on the target URL and the attacker's goals [1][3].

Mitigation

The vulnerability is fixed in Jianliao Notification Plugin version 1.2, released on June 22, 2022. Users should update to the latest version as soon as possible. There is no known workaround for older versions [1].