What is SQL Injection (SQLi) and How to Prevent Attacks

What is SQL Injection (SQLi) and How to Prevent Attacks

Learn about the SQL injection, types of attacks using SQL injection and preventive steps. SQL injection attack is used to insert malicious SQL statements into an entry field for execution. How SQL injection is used is very much dependent on the intention of the hacker. SQL injection is one of the top trending cyber attack techniques recognized by the world’s top non-profit security foundation OWASP (Open Web Application Security Project)

In today’s world cyber-attacks are triggered to alter or steal the information of a person or an organization in a huge volume of data. It is very much important to protect the data/database from security related attacks.

SQL Injection

SQL injection is one of the top trending cyber attack techniques recognized by the world’s top non-profit security foundation OWASP (Open Web Application Security Project). SQL injection attacks are made by inserting or injecting the SQL query input from the client end of the application. In this article, we will learn about the SQL injection, types of attacks using SQL injection and preventive steps.  

What is SQL Injection?

SQL injection attack is used to insert malicious SQL statements into an entry field for execution. This injection technique is the most common web application hacking attack that allows an attacker to get unauthorised access, commit identity spoofing, tamper, take control or destroy your database. This is an attack that is very simple and easy to carry out even for script kiddies.  

Vulnerabilities by Type

As we can see in the above picture, this is the second most common vulnerability that can impact databases. SQL injection flaws occur because of poorly designed web applications that can exploit SQL statements that execute malicious code.  

How SQL injection is used is very much dependent on the intention of the hacker. With unauthorized access to a database server, what can attackers do? Here are some examples: 

  • Download unauthorized data of a person or an organization 
  • Delete/modify data 
  • Permanently destroy data/backups 
  • Add a virus to a system 
  • Alter security 
  • Encrypt/steal/alter data and hold it for ransom 
  • Publicly shame an organization via a web or social media hack 
  • Use data to harm business operations

sql hacking databse security web-development

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