Page 38 - CDM Cyber Warnings November 2013
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Fig: Wifi Fern Cracker
After executing the python script the GUI mode of the tool opens. The only thing which is
required at this point is selecting the wireless interface and clicking on scan for access point.
Following this, the wireless network is selected and the attack button is clicked. The cracking
process starts automatically and the passphrase is the output.
Threats to Wireless Networks:
Wireless Sniffing: This is the easiest and most dangerous attack to a wireless network as an
adversary can obtain the packet during transmission and may be able to see the details
including the activities of the network.
Mirror Image Access Point: This is a fake access point which is created by an attacker.
The attacker creates an access point with a stronger signal than the real access point and
broadcasts it. The user connects the strongest signal and thus becomes a victim.
Ad-hoc Network: This is the simplest attack to launch. An attacker can connect to an ad hoc
network and can gain access to files.
38 Cyber Warnings E-Magazine – November 2013 Edition
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