SQL Injection : Ultimate method for Website Hacking.

SQL Injection basically means to execute a query in the database which is connected to the website to get personal information out of it, which is not visible to a normal user. Database is most likely to be a part of the websites, which saves all the information like user names, passwords, posts, replies in it. So there is a possibility that you might put some commands or queries or requests whatever you want to call it into the database to get some hidden information out of it.

It is noticed that in the past SQL Injection have been used several times to steal the credit card information, E-mail address and passwords, because most of the users have same E-mail address and passwords into all of their E-mail accounts. So if you manage to hack one of the accounts, you may just get access to all of their accounts. SQL Injection is most likely used by the “Penetration Testers” to check if the website of their clients are vulnerable to some kind of attacks to steal the information. Here, in this article I will show you how do they do it. There are some simple terms expected out of you and one of them is that you understand the basic knowledge of the computer. This tutorial will let you know, how to start? where to stop? what to do?

1. How to check if the website is vulnerable to SQL Injection?
A: On most of the website i read people saying that try to add “`” at the end [without quotes], and if you get some error that means that the website is vulnerable to SQL Injection. But being an experienced guy in the penetration, i’d rather tell you that this is a TOTAL MYTH. The best way to check the site vulnerability is to add “+order+by+6753″ at the end of the URL. Because, 97% of the websites don’t have more then 6753. columns. So by adding 6753 number, you will check if it has 6753 columns, which it apperatenly doesn’t have. So it will give you an error, and if it does that means that the WEBSITE IS VULNERABLE. It is generally noticed that a website doesn’t have more than 100 columns at the most in its database. So by entering the number 6753, you are trying to make it sure if the website gives you an error with it. IF it does that means you can proceed further. To check an SQL Injection, its mandatory that the website should be pointing it self to some specific page, i.e. “website.com/index.php?page=11″. So in this case the website is pointing it self to page Number.11 to pull up some specific information. So, to check if the website is vulnerable or not, you can try with the following URL. i.e. “website.com/index.php?page=11+order+by+6753″.

2. How would i find the vulnerable websites?
A.: Google is the best friend of Hackers, when I say this don’t assume that i am just writing it because i am supposed it. I really mean it. There is something called as “google dorks”, which are basically a command which could be put into the Google search to find out specific groups of pages.
here are some Google dorks which you may try to find out the vulnerable websites.
a. inurl:index.php?page=
b. inurl:members.php?member=
c. inurl:index.php?id=
d. inurl:articles.php?page=

This will help you to find out the websites which are connected and working with SQL Databases at the backend. Some of them might be vulnerable to SQL Injection. So you can try to put “order+by+6753″ at the end of the URL to check if its vulnerable.