The vulnerability, disclosed in a Jenkins Security Advisory on April 10, 2025, affects SSH host key handling in certain Docker images and could allow attackers to execute man-in-the-middle attacks against Jenkins build environments. The vulnerability stems from SSH host keys being generated during image creation rather than container startup for Debian-based images. “The jenkins/ssh-agent 6.11.2 Docker images based on Debian delete the automatically generated SSH host keys created during image creation. Cyber Security News is a Dedicated News Platform For Cyber News, Cyber Attack News, Hacking News & Vulnerability Analysis. This fundamentally undermines the security model of SSH, where host keys are intended to uniquely identify servers and establish trust relationships. The vulnerability enables attackers who can intercept network traffic between the Jenkins controller and SSH build agents to impersonate legitimate agents without triggering SSH authenticity warnings.
This Cyber News was published on cybersecuritynews.com. Publication date: Fri, 11 Apr 2025 08:55:11 +0000