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Question 118 - PT0-003 discussion

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During an engagement, a penetration tester needs to break the key for the Wi-Fi network that uses WPA2 encryption. Which of the following attacks would accomplish this objective?

A.
ChopChop
Answers
A.
ChopChop
B.
Replay
Answers
B.
Replay
C.
Initialization vector
Answers
C.
Initialization vector
D.
KRACK
Answers
D.
KRACK
Suggested answer: D

Explanation:

To break the key for a Wi-Fi network that uses WPA2 encryption, the penetration tester should use the KRACK (Key Reinstallation Attack) attack.

KRACK (Key Reinstallation Attack):

Definition: KRACK is a vulnerability in the WPA2 protocol that allows attackers to decrypt and potentially inject packets into a Wi-Fi network by manipulating and replaying cryptographic handshake messages.

Impact: This attack exploits flaws in the WPA2 handshake process, allowing an attacker to break the encryption and gain access to the network.

Other Attacks:

ChopChop: Targets WEP encryption, not WPA2.

Replay: Involves capturing and replaying packets to create effects such as duplicating transactions; it does not break WPA2 encryption.

Initialization Vector (IV): Related to weaknesses in WEP, not WPA2.

Pentest

Reference:

Wireless Security: Understanding vulnerabilities in Wi-Fi encryption protocols, such as WPA2, and how they can be exploited.

KRACK Attack: A significant vulnerability in WPA2 that requires specific techniques to exploit.

By using the KRACK attack, the penetration tester can break WPA2 encryption and gain unauthorized access to the Wi-Fi network.

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asked 02/10/2024
tho nguyen
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