Network Scanning /

Service Fingerprinting

HARD1 task

Why Version Detection Matters

Knowing a port is open is just the start. Knowing it runs Apache 2.4.49 tells you to search for CVE-2021-41773.

Version Detection

nmap -sV TARGET

Banner Grabbing

Services often announce themselves when you connect:

nc TARGET PORT curl -I http://TARGET

The response headers reveal software versions.

OS Detection

nmap -O TARGET

Identifies the operating system and version.

Your Mission

Use nmap version detection against the target. Find the exact version of the SSH server running. The flag is based on what you discover.

nmap -sV -p 22 15.204.80.238

Answer the questions below

Room Progress0 / 50 pts
0/1 tasks complete

Run nmap -sV against the target. Find the SSH server version string and submit the flag.

💡 Show hint

Run: nmap -sV -p 22 15.204.80.238 -- the version string contains the flag

No target
No target machine for this room.