Certified Ethical Hacker (CEH v13) — Question 192

In this attack, an adversary tricks a victim into reinstalling an already-in-use key. This is achieved by manipulating and replaying cryptographic handshake messages. When the victim reinstalls the key, associated parameters such as the incremental transmit packet number and receive packet number are reset to their initial values. What is this attack called?

Answer options

• A. Evil twin
• B. Chop chop attack
• C. Wardriving
• D. KRACK

Correct answer: D

Explanation

The correct answer is KRACK, which specifically refers to the exploitation of the WPA2 protocol vulnerabilities during the key reinstallation process. The other options, such as Evil twin and Wardriving, pertain to different types of attacks that do not involve key reinstallation, while the Chop chop attack focuses on manipulating packet streams rather than key management.