DNS Poisoning Attack

The video tutorial explains DNS spoofing and cache poisoning, demonstrating how attackers can redirect users to malicious sites by altering DNS translations. It provides a practical example using Ettercap, detailing configuration steps and execution of the attack. The tutorial concludes with mitigation strategies, emphasizing the importance of encryption and digital certificates to prevent such attacks.

What is the primary function of a DNS server?

• To manage network traffic

• To block malicious websites

• To translate domain names to IP addresses

• To store website data

What happens when a DNS server caches a false translation?

• It improves network speed

• It redirects users to the correct website

• It becomes poisoned and may redirect users to malicious sites

• It blocks all incoming requests

In the practical example, what tool is used to perform DNS spoofing?

• Nmap

• Ettercap

• Metasploit

• Wireshark

What is the purpose of changing the UID and GID in the Ettercap configuration?

• To allow multiple users to access the file

• To hide the attack from detection

• To ensure the configuration file can be used

• To increase the speed of the attack

How can DNS spoofing attacks be mitigated?

• By using a faster DNS server

• By performing end-to-end validation with TLS and digital signatures

• By disabling DNS caching

• By using a different web browser

Why does DNS spoofing fail on websites using HTTPS?

• Because HTTPS sites load faster

• Because the browser checks the server's digital certificate

• Because HTTPS sites are not cached

• Because DNS servers block HTTPS sites

What is a common characteristic of websites vulnerable to DNS spoofing?

• They have a high traffic volume

• They do not use encryption

• They are hosted on shared servers

• They use outdated HTML