SQL Injection (SQLi)

SQL injection attacks are capable of stealing enormous amounts of data, taking control of your web servers, and providing unauthorized access to an organization’s assets.

What is SQL injection (SQLi)?

SQL injection is a type of injection attack used to manipulate or destroy databases using malicious SQL statements. SQL statements control the database of your web application and can be used to bypass security measures if user inputs are not properly sanitized.

If the data entered into a form field on a website by a visitor is not properly sanitized, attackers can create an input that commands the database to perform unintended actions, such as sending back the entire database or personal customer information. SQLi attacks are still a prevalent form of attacks and one of the most dangerous web application vulnerabilities that can be exploited to gain unauthorized access to your organization’s most sensitive data.

7 common web application security attacks and what you can do to prevent themRelated WebinarSQL injection and MagecartRelated Blog

Instart blocks over 600K SQLi per month

SQL injection attacks account for 1.6% of all attacks blocked by Instart WAF

Sources: forbes.com, infosecurity-magazine.com


How a SQLi attack happens

An attacker inserts a malicious SQL command disguised as a visitor input into a website form field,  such as a search box.

Instead of searching for a product, the web server executes a command on your database server.

The attacker is able to trick the server into returning your entire customer database.

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Bugs in code happen — are you prepared?

Most popular web development languages today, such as PHP, contain SQL-safe functions which are designed to prevent applications being vulnerable to attacks like SQL injection. However, these functions are often difficult to implement and many development teams turn to quicker, but less secure methods. These functions can be forgotten during development, leaving exploits in the code.

While strong SQL injection protection really starts with good programming practices, detailed QA, and the correct usage of API calls — the reality is that human error happens and bugs will always exist. To protect against SQLi attacks, your business needs to implement additional security layers beyond the code level.

Stop injection attacks before they start

A web application firewall, or WAF, is designed to sit in front of a web application and examine all the incoming requests made from visitors to ensure they are valid and safe. For example, a WAF can identify user requests containing SQL commands and prevent these requests from reaching the server. In other words, even if there are vulnerabilities in your code — malicious malicious request will never reach your database..

Instart Web Application Firewall is cloud-based and performance-focused, delivering numerous security capabilities that go beyond those available in many other solutions.