Level - Medium
Description:
You can't use any of the first 13 letters of the alphabet EXCEPT for the first 4 letters of your input
OH and don't make it too long
nc byuctf.xyz 40003
[abcdefghijklm.py]
The following solution works - exec("pr\x69nt(op\x65n('\x66'+\x63\x68r(108)+'\x61\x67.txt').r\x65\x61\x64())")
Flag - byuctf{enc0dings_4r3_us3d_f0r_jailz}
This challenge should be a Docker container that runs the Python script abcdefghijklm.py every time someone connects on port 40003. All the proper files are included in here. The command to build the docker container is (when located inside of this directory):
sudo docker build -t abcdefghijklm .
sudo docker network create -d bridge abcdefghijklmThe command to start the challenge is:
sudo docker run -p 40003:40000 --detach --name abcdefghijklm --network abcdefghijklm abcdefghijklm:latestThe command to stop the challenge (since CTRL+C won't work) is:
sudo docker stop abcdefghijklm