You're reading from Nmap Network Exploration and Security Auditing Cookbook, Third Edition Network discovery and security scanning at your fingertips

Product type Paperback

Published in Sep 2021

Publisher Packt

ISBN-13 9781838649357

Length 436 pages

Edition 3rd Edition

Languages

C++

Tools

Nmap

Concepts

Network Security

Author (1):

Paulino Calderon

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Table of Contents (22) Chapters

Preface

1. Chapter 1: Nmap Fundamentals

2. Chapter 2: Getting Familiar with Nmap's Family FREE CHAPTER

3. Chapter 3: Network Scanning

4. Chapter 4: Reconnaissance Tasks

5. Chapter 5: Scanning Web Servers

6. Chapter 6: Scanning Databases

7. Chapter 7: Scanning Mail Servers

8. Chapter 8: Scanning Windows Systems

9. Chapter 9: Scanning ICS/SCADA Systems

10. Chapter 10: Scanning Mainframes

11. Chapter 11: Optimizing Scans

12. Chapter 12: Generating Scan Reports

13. Chapter 13: Writing Your Own NSE Scripts

14. Chapter 14: Exploiting Vulnerabilities with the Nmap Scripting Engine

15. Other Books You May Enjoy

Appendix A: HTTP, HTTP Pipelining, and Web Crawling Configuration Options

HTTP user agent

1. Appendix Β: Brute-Force Password Auditing Options

Brute modes

2. Appendix C: NSE Debugging

3. Appendix D: Additional Output Options

4. Appendix Ε: Introduction to Lua

5. Appendix F: References and Additional Reading

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Chapter 7: Scanning Mail Servers

Mail servers are available in almost any organization because email has taken over as the preferred communication channel. The importance of the role of mail servers depends on the information stored in them. Attackers often compromise an email account and proceed to take over all other accounts found in the mailbox, and recover other credentials using the forgotten password functionality available in almost every web application. Sometimes, compromised accounts are simply eavesdropped on for months without anyone noticing, and they may even be abused by spammers. Therefore, any good system administrator knows that it is essential to have a secure mail server.

In this chapter, I will go through different Nmap Scripting Engine (NSE) tasks to administer and monitor mail servers. I will also show the offensive side available to penetration testers. We will cover the most popular mail protocols, such as SMTP, POP3, and IMAP.

We will review tasks such...