Certified Ethical Hacker (CEH v12) — Question 88

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 stands for Key Reinstallation Attacks, as it specifically targets the reinstallation of keys in Wi-Fi networks. The other options, such as Evil twin and Wardriving, refer to different types of network attacks, while the Chop chop attack involves a different method of exploiting vulnerabilities in wireless protocols.