Section: Threats and Vulnerabilities
Explanation/Reference:
Explanation:
The question states that the corporate wireless network has been standardized. By 'standardized' it means
the wireless network access points are running on hardware from the same vendor. We can see this from
the MAC addresses used. The first half of a MAC address is vendor specific. The second half is network
adapter specific. We have four devices with MAC addresses that start with 00:10:A1.
The "odd one out" is the device with a MAC address starting FB:90:11. This device is from a different
vendor. The SSID of the wireless network on this access point is the same as the other legitimate access
points. Therefore, the access point with a MAC address starting FB:90:11 is impersonating the corporate
access points. This is known as an Evil Twin.
An evil twin, in the context of network security, is a rogue or fake wireless access point (WAP) that appears
as a genuine hotspot offered by a legitimate provider.
In an evil twin attack, an eavesdropper or hacker fraudulently creates this rogue hotspot to collect the
personal data of unsuspecting users. Sensitive data can be stolen by spying on a connection or using a
phishing technique.
For example, a hacker using an evil twin exploit may be positioned near an authentic Wi-Fi access point
and discover the service set identifier (SSID) and frequency. The hacker may then send a radio signal
using the exact same frequency and SSID. To end users, the rogue evil twin appears as their legitimate
hotspot with the same name.
In wireless transmissions, evil twins are not a new phenomenon. Historically, they were known as
honeypots or base station clones. With the advancement of wireless technology and the use of wireless
devices in public areas, it is very easy for novice users to set up evil twin exploits.