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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
You are conducting a wireless penetration test against an organization. You have identified that they are using WEP encryption on their wireless access points. You are impatient and do not want to wait to collect enough packets to find a repeated initialization vector. You decide to extract part of the key material from one of the packets and use it to send an ARP request to the AP. Which of the following exploits did you utilize in this attack?
The correct answer is D) deauthentication attack.
Deauthentication attack: In this scenario, you are attempting to force the wireless clients to disconnect from the access point (AP) and then reconnect, which will result in the generation of new packets that you can capture and use to extract key material. By sending deauthentication frames to the clients, you can forcibly disconnect them from the AP. When they reconnect, they will generate new packets, potentially providing you with enough information to crack the WEP key. This is a common strategy used in WEP cracking, leveraging the deauthentication attack to speed up the packet collection process.
Why the others are incorrect:
Downgrade attack: A downgrade attack involves forcing a system to fall back to a less secure version of a protocol. While downgrade attacks are relevant in some protocols like SSL/TLS, they do not directly apply to WEP encryption or the process of forcing a client to reconnect to collect packets for cracking.
Fragmentation attack: A fragmentation attack involves breaking a large packet into smaller fragments in order to increase the chances of obtaining useful information for cracking WEP. This attack works by exploiting the way WEP handles packet fragmentation. While related to WEP cracking, it is not specifically what is being described here, as you are not explicitly fragmenting packets in this scenario.
Karma attack: The Karma attack is a type of attack where an attacker sets up a rogue access point that responds to probe requests from wireless devices, effectively tricking them into connecting to the malicious AP. This is unrelated to the process of collecting WEP key material from legitimate APs by deauthentication or ARP requests.
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