Book Image

SQL Injection Strategies

By : Ettore Galluccio, Edoardo Caselli, Gabriele Lombari
Book Image

SQL Injection Strategies

By: Ettore Galluccio, Edoardo Caselli, Gabriele Lombari

Overview of this book

SQL injection (SQLi) is probably the most infamous attack that can be unleashed against applications on the internet. SQL Injection Strategies is an end-to-end guide for beginners looking to learn how to perform SQL injection and test the security of web applications, websites, or databases, using both manual and automated techniques. The book serves as both a theoretical and practical guide to take you through the important aspects of SQL injection, both from an attack and a defense perspective. You’ll start with a thorough introduction to SQL injection and its impact on websites and systems. Later, the book features steps to configure a virtual environment, so you can try SQL injection techniques safely on your own computer. These tests can be performed not only on web applications but also on web services and mobile applications that can be used for managing IoT environments. Tools such as sqlmap and others are then covered, helping you understand how to use them effectively to perform SQL injection attacks. By the end of this book, you will be well-versed with SQL injection, from both the attack and defense perspective.
Table of Contents (11 chapters)
1
Section 1: (No)SQL Injection in Theory
4
Section 2: SQL Injection in Practice

Defending against SQL injection – platform-level defenses

As mentioned earlier, platform-level defenses refer to all of the security measures we can apply at a platform and infrastructure level, possibly preventing malicious commands from entering or leaving the application and identifying and stopping harmful traffic. This also includes applying security measures to the database system itself.

Here, we are presenting a view of what can be done to secure an application against SQL injection by applying security controls and measures outside of it, in this way, granting additional layers of protection. This concept is called defense-in-depth and is one of the most relevant aspects of information security, helping to minimize possible threats against systems and applications alike.

Application-level firewall logic

The first, and probably most well-known, concept of protection is firewalling. A firewall is, generally speaking, an object that decides, usually according...