You're reading from Python for Security and Networking Leverage Python modules and tools in securing your network and applications

Product type Paperback

Published in Jun 2023

Publisher Packt

ISBN-13 9781837637553

Length 586 pages

Edition 3rd Edition

Languages

Python

Concepts

Information Security

Author (1):

José Manuel Ortega

View More author details

Table of Contents (23) Chapters

Preface

1. Section 1: Python Environment and System Programming Tools

2. Working with Python Scripting FREE CHAPTER

3. System Programming Packages

4. Section 2: Network Scripting and Packet Sniffing with Python

5. Socket Programming

6. HTTP Programming and Web Authentication

7. Analyzing Network Traffic and Packet Sniffing

8. Section 3: Server Scripting and Port Scanning with Python

9. Gathering Information from Servers with OSINT Tools

10. Interacting with FTP, SFTP, and SSH Servers

11. Working with Nmap Scanner

12. Section 4: Server Vulnerabilities and Security in Web Applications

13. Interacting with Vulnerability Scanners

14. Interacting with Server Vulnerabilities in Web Applications

15. Obtain Information from Vulnerabilities Databases

16. Section 5: Python Forensics

17. Extracting Geolocation and Metadata from Documents, Images, and Browsers

18. Python Tools for Brute-Force Attacks

19. Cryptography and Code Obfuscation

20. Assessments – Answers to the End-of-Chapter Questions

21. Other Books You May Enjoy

22. Index

Checking the security of SSH servers

If we need to verify our SSH server configuration, we have two choices:

By reviewing the SSH configurations file and comparing the files against a benchmark such as the CIS
By using ssh-audit, which is a script developed in Python that will allow us to extract a large amount of information about our protocol configuration

In this section, we will be looking at ssh-audit, https://pypi.org/project/ssh-audit, an open source tool written in Python that scans the SSH server configurations and will indicate whether the different configurations that we have applied are secure. The main feature of this tool is that it can audit every part of the SSH server. For example, it will be able to detect the login banner and if we are using an insecure protocol such as SSH1.

At the communications encryption level, it has the capacity to verify the key exchange algorithms, the public key of the host, the symmetric encryption when the...