Fortinet Discovers Portainer Unrestricted Host Filesystem Access Vulnerability
Fortinet's FortiGuard Labs has discovered an unrestricted host filesystem access vulnerability in Portainer.
Portainer is a lightweight management UI which allows you to easily manage your different Docker environments (Docker hosts or Swarm clusters). Portainer is meant to be as simple to deploy as it is to use. It consists of a single container that can run on any Docker engine (can be deployed as Linux container or a Windows native container, supports other platforms too). Portainer allows you to manage all your Docker resources (containers, images, volumes, networks and more).
An Unrestricted Host Filesystem Access vulnerability exists in Stack creation feature in Portainer before 1.22.1. Successful exploitation of this vulnerability would allow an authenticated user to gain full permission on host filesystem.
Users should apply the patch provided by Portainer
Fortinet reported the vulnerability to Portainer on 25 Sept, 2019
Portainer confirmed the vulnerability on 26 Sept, 2019
Portainer released the patch within Portainer 1.22.1 on 11 Oct, 2019