A man-in-the-middle (MITM) attack involves an attacker positioning themselves between a wireless

client and the legitimate network to intercept or manipulate traffic. HPE Aruba Networking

documentation often discusses MITM attacks in the context of wireless security threats and

mitigation strategies.

Option D, "The hacker connects a device to the same wireless network as the client and responds to

the client's ARP requests with the hacker device's MAC address," is correct. This describes an ARP

poisoning (or ARP spoofing) attack, a common MITM technique in wireless networks. The hacker

joins the same wireless network as the client (e.g., by authenticating with the same SSID and

credentials). Once on the network, the hacker sends fake ARP responses to the client, associating the

hacker’s MAC address with the IP address of the default gateway (or another target device). This

causes the client to send traffic to the hacker’s device instead of the legitimate gateway, allowing the

hacker to intercept, modify, or forward the traffic, thus performing an MITM attack.

Option A, "The hacker uses a combination of software and hardware to jam the RF band and prevent

the client from connecting to any wireless networks," is incorrect. Jamming the RF band would

disrupt all wireless communication, including the hacker’s ability to intercept traffic. This is a denial-

of-service (DoS) attack, not an MITM attack.

Option B, "The hacker runs an NMap scan on the wireless client to find its MAC and IP address. The

hacker then connects to another network and spoofs those addresses," is incorrect. NMap scans are

used for network discovery and port scanning, not for implementing an MITM attack. Spoofing MAC

and IP addresses on another network does not position the hacker to intercept the client’s traffic on

the original network.

Option C, "The hacker uses spear-phishing to probe for the IP addresses that the client is attempting

to reach. The hacker device then spoofs those IP addresses," is incorrect. Spear-phishing is a delivery

method for malware or credentials theft, not a direct method for implementing an MITM attack.

Spoofing IP addresses alone does not allow the hacker to intercept traffic unless they are on the

same network and can manipulate routing (e.g., via ARP poisoning).

The HPE Aruba Networking AOS-8 8.11 User Guide states:

"A common man-in-the-middle (MITM) attack against wireless clients involves ARP poisoning. The

hacker connects a device to the same wireless network as the client and sends fake ARP responses to

the client, associating the hacker’s MAC address with the IP address of the default gateway. This

causes the client to send traffic to the hacker’s device, allowing the hacker to intercept and

manipulate the traffic." (Page 422, Wireless Threats Section)

Additionally, the HPE Aruba Networking Security Guide notes:

"ARP poisoning is a prevalent MITM attack in wireless networks. The attacker joins the same network

as the client and responds to the client’s ARP requests with the attacker’s MAC address, redirecting

traffic through the attacker’s device. This allows the attacker to intercept sensitive data or modify

traffic between the client and the legitimate destination." (Page 72, Wireless MITM Attacks Section)

:

HPE Aruba Networking AOS-8 8.11 User Guide, Wireless Threats Section, Page 422.

HPE Aruba Networking Security Guide, Wireless MITM Attacks Section, Page 72.

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