Wireless Pent-Test

[Cesar Diaz <cesadiz () yahoo com>]

Remote users in my company have been begging for permission to use wireless NICs in their laptops for awhile now.  When 
they are not on the road, most of them work from home and would like to be able to use their laptops anywhere in their 
house.

Due to our industry and business requierements, we have to document every process and method used to access our data 
and prove that we've tested the security of our data.In order to let the users go wireless I have to show that I've 
tested the security on a wireless network.

  Our idea is to let the users buy wireless routers to connect to their cable/dsl routers and then wireless PCMCIA or 
USB cards on the laptop.  We would implement 128 bit WEP security to prevent unauthorized access.  I realize that WEP 
does not provide for stringent security, but we feel that by forcing users to change their WEP key regularly we can 
meet our requierements.

My question is, how do I test WEP and document wether or not it's secure?  Any way to sniff for WEP keys, or to brute 
force attack a WEP session?  If there is, how hard is it to set up?  How much of a risk of a wireless connection with 
WEP enabled to be comprimised other than a dedicated, brute force attack?

Any information is greatly appreciated.


Cesar

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