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Advanced Infrastructure Penetration Testing

You're reading from  Advanced Infrastructure Penetration Testing

Product type Book
Published in Feb 2018
Publisher Packt
ISBN-13 9781788624480
Pages 396 pages
Edition 1st Edition
Languages

Table of Contents (14) Chapters

Preface 1. Introduction to Advanced Infrastructure Penetration Testing 2. Advanced Linux Exploitation 3. Corporate Network and Database Exploitation 4. Active Directory Exploitation 5. Docker Exploitation 6. Exploiting Git and Continuous Integration Servers 7. Metasploit and PowerShell for Post-Exploitation 8. VLAN Exploitation 9. VoIP Exploitation 10. Insecure VPN Exploitation 11. Routing and Router Vulnerabilities 12. Internet of Things Exploitation 13. Other Books You May Enjoy

Spanning Tree Protocol attacks

The Spanning Tree Protocol (STP) was developed by Radia Perlman in 1985 to solve the problem of Ethernet loops, but before diving into STPs, let's go back to the root causes of this issue. If a broadcast storm occurs, you will lose your network availability. This happens when we have an Ethernet loop. As simple example, in the following diagram, we have three connected switches. If a switch sends a broadcast to the other two switches, they will receive and rebroadcast it by forwarding it through all ports because they couldn't find the address. Also, they will go for a repeating loop called a broadcast storm:

This way, the STP appeared to solve this networking issue by blocking the redundant paths, thanks to the Spanning Tree Algorithm (STA) based on the IEEE 802.1d standard, which makes sure that only one path is available between two...

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