Book Image

Network Protocols for Security Professionals

By : Yoram Orzach, Deepanshu Khanna
5 (1)
Book Image

Network Protocols for Security Professionals

5 (1)
By: Yoram Orzach, Deepanshu Khanna

Overview of this book

With the increased demand for computer systems and the ever-evolving internet, network security now plays an even bigger role in securing IT infrastructures against attacks. Equipped with the knowledge of how to find vulnerabilities and infiltrate organizations through their networks, you’ll be able to think like a hacker and safeguard your organization’s network and networking devices. Network Protocols for Security Professionals will show you how. This comprehensive guide gradually increases in complexity, taking you from the basics to advanced concepts. Starting with the structure of data network protocols, devices, and breaches, you’ll become familiar with attacking tools and scripts that take advantage of these breaches. Once you’ve covered the basics, you’ll learn about attacks that target networks and network devices. Your learning journey will get more exciting as you perform eavesdropping, learn data analysis, and use behavior analysis for network forensics. As you progress, you’ll develop a thorough understanding of network protocols and how to use methods and tools you learned in the previous parts to attack and protect these protocols. By the end of this network security book, you’ll be well versed in network protocol security and security countermeasures to protect network protocols.
Table of Contents (23 chapters)
Part 1: Protecting the Network – Technologies, Protocols, Vulnerabilities, and Tools
Part 2: Network, Network Devices, and Traffic Analysis-Based Attacks
Part 3: Network Protocols – How to Attack and How to Protect

Countermeasures to protect network protocols and databases

The following are countermeasures that should be made a priority to secure SQL servers from misconfiguration injections and network-based attacks:

  • Keep the operating system and SQL server up to date to protect against multiple known threats.
  • Disable SMBv1.
  • Disable Link Local Multicast Name Resolution (LLMR), NetBIOS, and Web Proxy Autodiscover (WPAD).
  • Disable NTLMv1.
  • Disable sa, the default user, and the service accounts should not be used as the SQL servers.
  • Always audit the SQL servers after the new configurations and on a monthly basis.
  • Always use strong credentials for the domain user and the SQL server user.
  • Disable the dangerous stored procedures.