This exploits a command execution in Pi-Hole <= 4.3.2. A new DHCP static lease is added with a MAC address which includes an RCE. Exploitation requires /opt/pihole to be first in the $PATH due to exploitation constraints. DHCP server is not required to be running.
Unix
cmd
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use exploit/unix/http/pihole_dhcp_mac_exec
msf exploit(pihole_dhcp_mac_exec) > show targets
...targets...
msf exploit(pihole_dhcp_mac_exec) > set TARGET < target-id >
msf exploit(pihole_dhcp_mac_exec) > show options
...show and set options...
msf exploit(pihole_dhcp_mac_exec) > exploit
Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.
– Jim O’Gorman | President, Offensive Security