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Sense -

Target Enumeration:
OS: Linux
User: 8721327cc232073b40d27d9c17e7348b
Root: d08c32a5d4f8c8b10e76eb51a69f1a86

Ports / Services / Software Versions Running

80/tcp open http lighttpd 1.4.35
443/tcp open ssl/http lighttpd 1.4.35

Vulnerability Exploited:

pfSense, a free BSD based open source firewall distribution, version <= 2.2.6 contains a remote command execution vulnerability post authentication in the _rrd_graph_img.php page. The vulnerability occurs via the graph GET parameter. A non-administrative authenticated attacker can inject arbitrary operating system commands and execute them as the root user. Verified against 2.2.6, 2.2.5, and 2.1.3.

Exploiting the host:

Website is pfsense
Changelog.txt gives us some information to consider when exploiting
Checking searchsploit gives us the following to consider:
Most do not work authenticated so we need credentials:
Changing our wordlist we discover a new set of credentials:
Default password is pfsense
Load metasploit with and set the following options and execute to get root:
Get root & collect the user flag.