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Many students who study using our platform have reported that a large number of the practice questions here are very similar to those that appear in real exams. View Courses
Many students who study using our platform have reported that a large number of the practice questions here are very similar to those that appear in real exams. View Courses
Which of the following weaknesses exist in WPS-enabled wireless networks?
The correct answer is C) brute force occurs within 11000 combinations.
Brute force occurs within 11000 combinations: WPS (Wi-Fi Protected Setup) has a significant weakness that allows attackers to easily perform a brute-force attack on the 8-digit PIN used during the WPS authentication process. The 8-digit PIN is divided into two 4-digit halves. The first half is used to verify the device, and the second half is used to confirm the PIN. Attackers can brute-force this PIN, and due to the structure of the PIN, there are only 11,000 combinations to try (because the first half of the PIN is checked through a checksum). This makes WPS susceptible to a fast brute-force attack.
Why the others are incorrect:
Utilizes TKIP to secure the authentication handshake: This statement is incorrect because TKIP (Temporal Key Integrity Protocol) is not used to secure the WPS authentication handshake. WPS uses a PIN-based method for authentication and does not rely on TKIP. TKIP is an older encryption protocol used with WPA, but it is not related to WPS weaknesses.
Utilizes a 24-bit IV: This is a weakness related to older wireless encryption protocols, like WEP, which used a 24-bit Initialization Vector (IV). WPS does not inherently have a weakness related to a 24-bit IV. WPS weaknesses are primarily due to its PIN-based authentication process.
Utilizes a 40-bit encryption key: This refers to WEP encryption, which uses a 40-bit encryption key (though the key was extended to 104 bits later). WPS itself doesn't use a 40-bit key for encryption; instead, it uses a PIN for authentication, which is the weakness that makes it vulnerable to brute-force attacks.
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