#!/usr/bin/perl
#syslog Fuzzer v0.1 
#jaime.blasco@aitsec.com
#www.aitsec.com

use IO::Socket::INET;
use Getopt::Std;
use POSIX qw(strftime);

getopt('hp', \ my %opts );

$SIG{INT}=\&exitz;
print "
\t  Syslog Fuzzer v0.1 by Jaime Blasco (c) 2008
\t        www.aitsec.com
";
if(!defined($opts{h}) or !defined($opts{p})){
  print "
    -h   : Host\n
    -p   : Port Number
  ";
exit
}

$port = $opts{p};
$host = $opts{h};

@bfo = ('A'x10, 'A'x20, 'A'x40, 'A'x80, 'A'x160, 'A'x320, 'A'x640, 'A'x1280, 'A'x3000, 'A'x5000, 'A'x8000, 'A'x12000, 'A'x15000);
@fse = ("%s%p%x%d", ".1024d", "%.2049d", "%p%p%p%p", "%x%x%x%x", "%d%d%d%d", "%s%s%s%s", "%99999999999s",
      "%08x", "%%20d", "%%20n", "%%20x", "%%20s", "%s%s%s%s%s%s%s%s%s%s", "%p%p%p%p%p%p%p%p%p%p",
      "%#0123456x%08x%x%s%p%d%n%o%u%c%h%l%q%j%z%Z%t%i%e%g%f%a%C%S%08x%%", "%s"x150, "%x"x300);
@int = ("-1", "0", "0x100", "0x1000", "0x3fffffff", "0x7ffffffe", "0x7fffffff", "0x80000000", "0xfffffffe", "0xffffffff", "0x10000", "0x100000");

print "Using host: ".$host."\n";
print "Using port: ".$port."\n";

$con=new IO::Socket::INET->new(PeerPort=>$port,
        Proto=>'udp',
        PeerAddr=>$host);

#https://www.ietf.org/rfc/rfc3164.txt
#udp SYSLOG PACKET looks like:
#<Priority>Header Message text
# Header = Date Hostname PID

$npriority = '<0>';
$ndate = strftime "%b%e %H:%M:%S", localtime;
$nhostname = "10.0.0.2";
$npid = 'fuzzer[10]';
$nmsg = "Syslog Fuzzer v0.1 by Jaime Blasco (c) 2008";

#fuzzing PRI

#Buffer Overflow
foreach (@bfo) {
  $header = $ndate.' '.$nhostname.' '.$npid;
  $packet = '<'.$_.'>'.$header.': '.$nmsg;
  $con->send($packet);
  
  #print $packet;
}
sleep 1;

#Format Strings
foreach (@fse) {
  $header = $ndate.' '.$nhostname.' '.$npid;
  $packet = '<'.$_.'>'.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Integer Overflows
foreach (@int) {
  $header = $ndate.' '.$nhostname.' '.$npid;
  $packet = '<'.$_.'>'.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#fuzzing header
  
  #fuzzing Date
  
#Buffer Overflow
foreach (@bfo) {
  $header = $_.' '.$nhostname.' '.$npid;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Format Strings
foreach (@fse) {
  $header = $_.' '.$nhostname.' '.$npid;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Integer Overflows
foreach (@int) {
  $header = $_.' '.$nhostname.' '.$npid;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

  #fuzzing hostname

#Buffer Overflow
foreach (@bfo) {
  $header = $ndate.' '.$_.' '.$npid;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Format Strings
foreach (@fse) {
  $header = $ndate.' '.$_.' '.$npid;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Integer Overflows
foreach (@int) {
  $header = $ndate.' '.$_.' '.$npid;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

  #fuzzing PID
  
#Buffer Overflow
foreach (@bfo) {
  $header = $ndate.' '.$nhostname.' '.$_;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Format Strings
foreach (@fse) {
  $header = $ndate.' '.$nhostname.' '.$_;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Integer Overflows
foreach (@int) {
  $header = $ndate.' '.$nhostname.' '.$_;
  $packet = $npriority.$header.': '.$nmsg;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#fuzzing msg

#Buffer Overflow
foreach (@bfo) {
  $header = $ndate.' '.$nhostname.' '.$npid;
  $packet = $npriority.$header.': '.$_;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Format Strings
foreach (@fse) {
  $header = $ndate.' '.$nhostname.' '.$npid;
  $packet = $npriority.$header.': '.$_;
  $con->send($packet);
  #print $packet;
}
sleep 1;

#Integer Overflows
foreach (@int) {
  $header = $ndate.' '.$nhostname.' '.$npid;
  $packet = $npriority.$header.': '.$_;
  $con->send($packet);
  #print $packet;
}