Ethical Hacking Wireless Security 2

Question 1

Which WPA2 attack captures and cracks the four-way handshake to recover the network passphrase?

Accepted Answer

Deauth and handshake capture with Aircrack-ng

Answer

Capturing a WPA2 four-way handshake with airodump-ng (often triggered by a deauth attack) and cracking it offline with Aircrack-ng and a wordlist is the classic WPA2 attack method.

Question 2

What is the KRACK attack and which protocol does it target?

Accepted Answer

Key Reinstallation Attack targeting WPA2 by replaying cryptographic handshake messages

Answer

KRACK (Key Reinstallation Attack) targets WPA2 by replaying handshake messages to reset cryptographic nonces, allowing nonce reuse that can decrypt and potentially inject wireless traffic.

Question 3

Which tool is used for wireless packet injection and monitoring in penetration tests?

Accepted Answer

Aircrack-ng

Answer

The Aircrack-ng suite includes tools for packet capture (airodump-ng), packet injection (aireplay-ng), and WEP/WPA cracking (aircrack-ng), making it the standard wireless pentesting toolkit.

Question 4

What is the 'PMKID attack' and how does it differ from handshake-based WPA2 cracking?

Accepted Answer

PMKID attack can be performed against the AP directly without waiting for a client to connect; handshake cracking requires capturing a client connection

Answer

The PMKID attack extracts a PMKID directly from the AP without waiting for a client to authenticate, making it possible to crack WPA2 passphrases with just the AP present.

Question 5

What does placing a wireless adapter in 'monitor mode' allow a penetration tester to do?

Accepted Answer

Passively capture all wireless frames in range without associating with an AP

Answer

Monitor mode (promiscuous mode for wireless) allows the network adapter to capture all wireless frames in range, including frames not destined for that adapter, enabling passive reconnaissance.

Ethical Hacking Practice Test

Ethical Hacking Practice Test

Ethical Hacking Wireless Security 2