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During a security assessment, a penetration tester needs to exploit a vulnerability in a wireless network's authentication mechanism to gain unauthorized access to the network. Which of the following attacks would the tester most likely perform to gain access?
Correct Answer: C
MAC address spoofing involves changing the MAC address of a network interface to mimic another device on the network. This technique is often used to bypass network access controls and gain unauthorized access to a network. Step-by-Step Explanation Understanding MAC Address Spoofing: MAC Address: A unique identifier assigned to network interfaces for communication on the physical network segment. Spoofing: Changing the MAC address to a different one, typically that of an authorized device, to gain access to restricted networks. Purpose: Bypassing Access Controls: Gain access to networks that use MAC address filtering as a security measure. Impersonation: Assume the identity of another device on the network to intercept traffic or access network resources. Tools and Techniques: Linux Command: Use the ifconfig or ip command to change the MAC address. ifconfig eth0 hw ether 00:11:22:33:44:55 Tools: Tools like macchanger can automate the process of changing MAC addresses. Impact: Network Access: Gain unauthorized access to networks and network resources. Interception: Capture traffic intended for another device, potentially leading to data theft or further exploitation. Detection and Mitigation: Monitoring: Use network monitoring tools to detect changes in MAC addresses. Secure Configuration: Implement port security on switches to restrict which MAC addresses can connect to specific ports. Reference from Pentesting Literature: MAC address spoofing is a common technique discussed in wireless and network security chapters of penetration testing guides. HTB write-ups often include examples of using MAC address spoofing to bypass network access controls and gain unauthorized access. Reference: Penetration Testing - A Hands-on Introduction to Hacking HTB Official Writeups Top of Form Bottom of Form
