SQL Injection Attack – One of the most popular technical hackers can use SQL injection. It is a very popular and easy method as compared to other methods. Those people who are masters in database language or knowledge of SQL, they are easy to crack website information with help of SQL injection attack.
Sql injection is the process where passing queries in parameterized form. In other words, sql injection attack means passing data to the target input field and reaching the database sensitive information like password, username, credit card information, email, and even client contact information.
What is the impact of a successful SQL injection attack?
Sql injection is also known as retrieving hidden data which is usually hard to see for normal users. This kind of data, like sensitive information, catches up with SQL. It is also noted that among 13 different types of security crack technique it is the most prominent technique.
We have a little bit of ideas about sql injection, now provide a valid example which is useful to know about how sql injection actually works with a live website. We take any random automobile website where we need to find parts. Sometimes it is hard for us to find information because invalid website development structure. With the help of sql queries we are easy to find the details of parts information.
For example
https://automobile-insecure.com/products?category=parts
generally, in an insecure website it is often noted that when a user clicks on a list of automation parts categories, at that time they see the url like above. Which is to give information regarding category parts information provided.
This type of reason insists on accessing database information.
SELECT * FROM products WHERE category = ‘parts’ AND released = 1
Mention query provides information of all automation parts details obtained from the database. * means everything, product means table name, and parts is the categories, and released=1 is product that is released. Generally 0 means unreleased. Therefore, by default it is valid in the majority of cases.
SELECT id FROM users WHERE username=’fvgf@123′ AND password=’sfvjhh@3483′ OR 1=1′
You can also understand the sql injection with mention queries, where username and password is unknown but other conditions 1=1 are working true. Therefore, generally the first id is called. And generally, the first database id is username and password. Therefore, website for sql injection attack is very harmful for your website. You need to protect your website from it.
There are numerous other queries methods that also consider easily cracking the database details, we are understanding simple details which generally work for getting details, if the website is not properly secure. We discuss a simple example below which is useful to identify the problems of website security.
SELECT * FROM users WHERE username = ‘admin’ AND password = ‘root’
Here we implemented queries, but if we get a successful result, then we consider our logic is successful. Otherwise, we need to try numerous other things. There are numerous methods that are working well to getting data, but here we are learning about how to protect websites from SQL injection attack.
List of tips to secure websites from sql injection attack
- Using parameterised queries
- Up to data all software and plugins with latest security patch
- Avoid to buy shared database account
- Validate all input fields for expected data type like radio button, check box, drop down, and password.
- Handle error messages, so users cannot get database responses.
- Offer money for find vulnerability in website
- Keep unpredicted database table name
We understand the importance of parameterised queries. This is because it is one of the ideal ways we can enhance the security level, therefore, it is very crucial to get information regarding parameterized queries.
It is simple queries which is easy to access
String query = “SELECT * FROM products WHERE category = ‘”+ input + “‘”;
You need to use parameter queries which is very hard for hacker to access
PreparedStatement statement = connection.prepareStatement(“SELECT * FROM products WHERE category = ?”);
statement.setString(1, input);
Above example is very simple and this type of syntax is used while we realize any untrusted input field.
To conclude, sql injection attack is a very sensitive topic for implementing website security. Therefore, it is our responsibility to solve the problem from the website. Mentioned techniques are useful to avoid sql injection problems from your website. You should also take and provide a strong password and avoid using irrelevant plugins for websites which sometimes lead to security problems.