wireless security

Question 1

war driving

Answer 1

People drive around looking for unsecured LANs so they can get free internet access

Question 2

warchalking

Answer 2

once an open WLAN is found in a public place, a user writes a symbol on a wall to notify others

Question 3

WEP & WPA security cracking

Answer 3

utilities can capture wireless packets and run mathematical algorithms to determine the pre-shared key

Question 4

rouge access point

Answer 4

a malicious user set up his own AP to which legitimate users would connect

Question 5

MAC address filtering

Answer 5

configures an AP with a listing of permitted MAC addresses. Unfortunately, it is possible for hackers to falsify their MAC address.

Question 6

disabling SSID broadcast (aka cloaking)

Answer 6

configures the AP to not broadcast the name of the wireless LAN. Hackers can still find the SSID.

Question 7

pre-shared key

Answer 7

both the AP & wireless client need the same key. can lead to scalability problems in large networks if the key is compromised

Question 8

IEEE 802.1X

Answer 8

wired or wireless users authenticate with their own credentials.

Question 9

WEP

Answer 9

Wired equivalent privacy. Original 802.11 wireless security standard. static 40-bit WEP key - AP & client use same key.

Question 10

WPA

Answer 10

wi-fi protected access. Developed to address issues with WEP. Uses TKIP & MIC.

Question 11

WPA2

Answer 11

uses counter mode with cipher block chaining message authentication code protocol (CCMP) & AES

Question 12

TKIP

Answer 12

temporal key integrity protocol

Question 13

MIC

Answer 13

message integrity check

Question 14

SOHO security checklist

Answer 14

no default setting, virus protection/firewall/disable file sharing, cell sizing (adjust power setting to limit coverage where needed)

Question 15

SOHO 2 security checklist

Answer 15

cloaking, MAC filter, static IP, encryption, turn off when not needed.