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

Privilege escalation on Windows


As we saw in the previous section, on a Windows system, the user with the highest privileges is known as the administrator. Once we compromise a system using any of the available exploits, our aim should be to elevate the user privileges to that of the administrator.

The following screenshot shows an exploitation of the ms08_067_netapi vulnerability with Windows XP as the target. Metasploit successfully exploited the vulnerability and gave a meterpreter session, as shown in the following screenshot:

The meterpreter provides us with the ability to escalate privileges. The getsystem command is specifically used for privilege escalation on the compromised Windows system. The following screenshot shows the use of the getsystem command in order to get the administrator-level privileges on the target system: