Scanning Services Using Metasploit
Again, other than using Nmap to perform scanning for services on our target network, Metasploit also includes a large variety of scanners for various services, often helping you determine potentially vulnerable running services on target machines.
A previous scan shows us we have TCP port 22 open on two machines. SSH is very secure but vulnerabilities are not unheard of and it always pays to gather as much information as possible from your targets.
msf > services -p 22 -c name,port,proto Services ======== host name port proto ---- ---- ---- ----- 172.16.194.163 ssh 22 tcp 172.16.194.172 ssh 22 tcp
We’ll load up the ssh_version auxiliary scanner and issue the set command to set the ‘RHOSTS’ option. From there we can run the module by simple typing run.
msf > use auxiliary/scanner/ssh/ssh_version msf auxiliary(ssh_version) > set RHOSTS 172.16.194.163 172.16.194.172 RHOSTS => 172.16.194.163 172.16.194.172 msf auxiliary(ssh_version) > show options Module options (auxiliary/scanner/ssh/ssh_version): Name Current Setting Required Description ---- --------------- -------- ----------- RHOSTS 172.16.194.163 172.16.194.172 yes The target address range or CIDR identifier RPORT 22 yes The target port THREADS 1 yes The number of concurrent threads TIMEOUT 30 yes Timeout for the SSH probe msf auxiliary(ssh_version) > run [*] 172.16.194.163:22, SSH server version: SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu7 [*] Scanned 1 of 2 hosts (050% complete) [*] 172.16.194.172:22, SSH server version: SSH-2.0-OpenSSH_4.7p1 Debian-8ubuntu1 [*] Scanned 2 of 2 hosts (100% complete) [*] Auxiliary module execution completed
Poorly configured FTP servers can frequently be the foothold you need in order to gain access to an entire network so it always pays off to check to see if anonymous access is allowed whenever you encounter an open FTP port which is usually on TCP port 21. We’ll set the ‘THREADS’ to ‘1’ here as we’re only going to scan 1 host.
msf > services -p 21 -c name,proto Services ======== host name proto ---- ---- ----- 172.16.194.172 ftp tcp msf > use auxiliary/scanner/ftp/ftp_version msf auxiliary(ftp_version) > set RHOSTS 172.16.194.172 RHOSTS => 172.16.194.172 msf auxiliary(anonymous) > show options Module options (auxiliary/scanner/ftp/anonymous): Name Current Setting Required Description ---- --------------- -------- ----------- FTPPASS firstname.lastname@example.org no The password for the specified username FTPUSER anonymous no The username to authenticate as RHOSTS 172.16.194.172 yes The target address range or CIDR identifier RPORT 21 yes The target port THREADS 1 yes The number of concurrent threads msf auxiliary(anonymous) > run [*] 172.16.194.172:21 Anonymous READ (220 (vsFTPd 2.3.4)) [*] Scanned 1 of 1 hosts (100% complete) [*] Auxiliary module execution completed
In a short amount of time and with very little work, we are able to acquire a great deal of information about the hosts residing on our network thus providing us with a much better picture of what we are facing when conducting our penetration test.
There are obviously too many scanners for us to show case. It is clear however the Metasploit Framework is well suited for all your scanning and identification needs.
msf > use auxiliary/scanner/ Display all 485 possibilities? (y or n) ...snip...