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

Chapter 5: Preventing SQL Injection with Defensive Solutions

Up until now, we have focused on the offensive aspect of SQL injection. We saw how a malicious user can perform main attack techniques in previous chapters, and what consequences a successful SQL injection attack could have. In a general sense, we saw how in principle, a SQL injection can quite easily result in a fully compromised database, which could leak sensitive information, give attackers full access to connected applications, or totally break the functionality of databases, applications, web services, or even connected devices, independent of the technology used.

In this chapter, we will focus more on the defensive side of things; now that we know that such an impressive and destructive vulnerability exists—and how simple, in principle, it would be to exploit it—how can we stop it? This is the question we are trying to answer here. Obviously, the solution to this problem is not simple, and it usually...