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)

Web application exploits

The five most common web application exploits include: remote code execution, SQL injection, format string vulnerabilities, XSS, and username enumeration. We have covered some of these attacks in earlier chapters. We will now go into more detail about how these attacks function.

Remote code execution is an extremely effective attack that hackers use to gain illegal control of devices. A good example is a vulnerability found within the Simple Network Management Protocol (SNMP) using Cisco Adaptive Security Appliance (ASA) software. This vulnerability allows a hacker to execute remote code on a victim's device. According to the Cisco Security Center, this vulnerability is caused by a buffer overflow in the affected code area. To take full advantage of this vulnerability, hackers craft customized SNMP packets to an SNMP-enabled interface on a victim's device. After the crafted packets...