##
# 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. 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/bc/soap/rfc SOAP Service RFC_PING Function Service Discovery',
			'Description' => %q{
					This module makes use of the RFC_PING function, through the	/sap/bc/soap/rfc
				SOAP service, to test connectivity to remote RFC destinations.
				},
			'References' =>
				[
					[ 'URL', 'http://labs.mwrinfosecurity.com/tools/2012/04/27/sap-metasploit-modules/' ]
				],
			'Author' =>
				[
					'Agnivesh Sathasivam',
					'nmonkee'
				],
			'License' => MSF_LICENSE
		)

		register_options(
			[
				Opt::RPORT(8000),
				OptString.new('CLIENT', [true, 'Client', '001']),
				OptString.new('USERNAME', [true, 'Username ', 'SAP*']),
				OptString.new('PASSWORD', [true, 'Password ', '06071992'])
			], self.class)
	end

	def run_host(ip)
		client = datastore['CLIENT']
		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:RFC_PING xmlns:n1="urn:sap-com:document:sap:rfc:functions" env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">'
		data << '</n1:RFC_PING>'
		data << '</env:Body>'
		data << '</env:Envelope>'
		user_pass = Rex::Text.encode_base64(datastore['USERNAME'] + ":" + datastore['PASSWORD'])
		print_status("[SAP] #{ip}:#{rport} - sending SOAP RFC_PING request")
		begin
			res = send_request_raw({
				'uri' => '/sap/bc/soap/rfc?sap-client=' + 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=' + client,
						'Authorization'  => 'Basic ' + user_pass,
						'Content-Type'   => 'text/xml; charset=UTF-8'
					}
				}, 45)
			if res and res.code != 500 and res.code != 200
				if res and res.body =~ /<h1>Logon failed<\/h1>/
					print_error("[SAP] #{ip}:#{rport} - login failed!")
				else
					print_error("[SAP] #{ip}:#{rport} - something went wrong!")
				end
				return
			elsif res and res.body =~ /Response/
				print_good("[SAP] #{ip}:#{rport} - RFC service is alive")
				report_note(
					:host => ip,
					:proto => 'tcp',
					:port => rport,
					:sname => 'sap',
					:type => 'sap.services.available',
					:data => "The Remote Function Call (RFC) Service is available through the SOAP service."
				)
				return
			else
				print_status("[SAP] #{ip}:#{rport} - RFC service is not alive")
				return
			end
		rescue ::Rex::ConnectionError
			print_error("[SAP] #{ip}:#{rport} - Unable to connect")
			return
		end
	end
end