Book Image

Securing Network Infrastructure

By : Sairam Jetty, Sagar Rahalkar
Book Image

Securing Network Infrastructure

By: Sairam Jetty, Sagar Rahalkar

Overview of this book

Digitization drives technology today, which is why it’s so important for organizations to design security mechanisms for their network infrastructures. Analyzing vulnerabilities is one of the best ways to secure your network infrastructure. This Learning Path begins by introducing you to the various concepts of network security assessment, workflows, and architectures. You will learn to employ open source tools to perform both active and passive network scanning and use these results to analyze and design a threat model for network security. With a firm understanding of the basics, you will then explore how to use Nessus and Nmap to scan your network for vulnerabilities and open ports and gain back door entry into a network. As you progress through the chapters, you will gain insights into how to carry out various key scanning tasks, including firewall detection, OS detection, and access management to detect vulnerabilities in your network. By the end of this Learning Path, you will be familiar with the tools you need for network scanning and techniques for vulnerability scanning and network protection. This Learning Path includes content from the following Packt books: •Network Scanning Cookbook by Sairam Jetty •Network Vulnerability Assessment by Sagar Rahalkar
Table of Contents (28 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Defining patching?


Typically, a piece of software gets developed after going through the entire SDLC and then gets publicly released. We commonly assume that it will meet all the functional requirements and be secure against potential threats. However, it might be that some functionality in the software is mistakenly broken, allowing attackers to exploit a potential vulnerability. Now, once the exact problem is known, the vendor works on patching the affected software component as quickly as possible.

Once the patch is ready, it is distributed to all the customers through an official channel. However, customers need to ensure that the right and latest patch is applied on their systems. Failing to do so will leave the systems vulnerable to severe threats. This creates a need for a systematic approach to managing patches.

The most commonly found vulnerabilities are a result of missing patches in various software components. So, if we proactively manage patches on our systems, then the most common...