This repository contains a submodule, clone it with:
git clone --recurse-submodules git@github.com:obscuritylabs/log4shell-poc-lab.git
Then to start the demo execute:
docker compose up
To view the exploit creating a file on the victim server, execute:
docker compose exec victim ls -lah /tmp
https://obscuritylabs.com/blog/log4shell-the-newest-vulnerability/