Book Image

Applied Network Security

By : Arthur Salmon, Michael McLafferty, Warun Levesque
Book Image

Applied Network Security

By: Arthur Salmon, Michael McLafferty, Warun Levesque

Overview of this book

Computer networks are increasing at an exponential rate and the most challenging factor organisations are currently facing is network security. Breaching a network is not considered an ingenious effort anymore, so it is very important to gain expertise in securing your network. The book begins by showing you how to identify malicious network behaviour and improve your wireless security. We will teach you what network sniffing is, the various tools associated with it, and how to scan for vulnerable wireless networks. Then we’ll show you how attackers hide the payloads and bypass the victim’s antivirus. Furthermore, we’ll teach you how to spoof IP / MAC address and perform an SQL injection attack and prevent it on your website. We will create an evil twin and demonstrate how to intercept network traffic. Later, you will get familiar with Shodan and Intrusion Detection and will explore the features and tools associated with it. Toward the end, we cover tools such as Yardstick, Ubertooth, Wifi Pineapple, and Alfa used for wireless penetration testing and auditing. This book will show the tools and platform to ethically hack your own network whether it is for your business or for your personal home Wi-Fi.
Table of Contents (18 chapters)

What are web injections?

Web injections, also known as Structured Query Language injections (SQLi), are cyber-attacks that deal with web application databases. A hacker can use various SQLi methods to bypass a website security for authorization and recover data and information from the entire database or delete certain records. A compromised database can also be manipulated where additional content was added or modified.

How SQL injections work

To conduct any SQL injection, we must first find an entry point in the website or web application where we can input a query like the following:

Use the following pseudo code to see how this works on the backend:

#Define Post 
name = request.POST['username'] 
pwd = request.POST['password'] 

# Vulnerable...