Author: Marin Radu
Follow the server's instructions and append the Python version to the query to retrieve the dynamic flag.
curl- HTTP requests
Connect to the provided domain and port, read the message, check the Python version, and append it to the query:
DOMAIN=chal.chronossec.site
PORT=30030
/usr/bin/curl -sI http://$DOMAIN:$PORT | /usr/bin/grep -i python
/usr/bin/curl -s http://$DOMAIN:$PORT/flag?python=3.9.17Flag:
CSCTF{hash-that-changes-every-5-minutes}