CEH Certified Ethical Hacker Cert Guide, 4th Edition

Chapter 6

Sniffers, Session Hijacking, and Denial of Service

This chapter covers the following topics:

• Sniffers: Although not specifically designed to be hacking tools, sniffers can be used to find many types of clear-text network traffic.

• Session Hijacking: This takes the techniques discussed with sniffing to the next level. Hijacking makes it possible to not only watch traffic but actually intercept and take control of a valid connection.

• Denial of Service and Distributed Denial of Service: Although this category of attack does not grant an attacker access, it does enable attackers to block legitimate access. These techniques can be used for denial of service or even potentially extortion.

This chapter introduces you to sniffers, session ...