Wireless adapter security question

Wireless adapter security question
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Subject Author Date
Wireless adapter security question Apt Sa 04-10-2006
Posted by Apt Sa on April 10, 2006, 1:35 pm
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Could my internal wired network be easily breached by wireless cards on
laptops? Let me list 2 areas of concern. A user in an office connects to
an unsecure hotspot while connected to the internal secure wired network.
or a user makes an adhoc connection to another wireless user. As this a
concern? Thanks in advance.
-Paul




Posted by donnie on April 10, 2006, 9:26 pm
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wrote:

>Could my internal wired network be easily breached by wireless cards on
>laptops? Let me list 2 areas of concern. A user in an office connects to
>an unsecure hotspot while connected to the internal secure wired network.
>or a user makes an adhoc connection to another wireless user. As this a
>concern? Thanks in advance.
>-Paul
>
>
################################################
Actually, if the user connects to an outside wireless network, it's
that network that's at risk, not yours. If you don't have any
wireless routers at all, you're in good shape.
I maintain a 15 user, 1 server network. I use static IPs so even if
someone walked in there w/ a laptop, they can't connect unless we give
them an IP on the subnet. The last thing I wanted was people walking
into the office and connecting to the network. How many of your users
use laptops?

Posted by Borked Pseudo Mailed on April 11, 2006, 10:40 am
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donnie wrote:

>
>>Could my internal wired network be easily breached by wireless cards on
>>laptops? Let me list 2 areas of concern. A user in an office connects
>>to an unsecure hotspot while connected to the internal secure wired
>>network. or a user makes an adhoc connection to another wireless user.
>>As this a concern? Thanks in advance.
>>-Paul
>>
>>
> ################################################ Actually, if the user
> connects to an outside wireless network, it's that network that's at risk,
> not yours. If you don't have any wireless routers at all, you're in good
> shape.

If that machine is compromised, which is MUCH easier to do on a LAN than a
WAN, then it could very easily be used to access the poster's local
"secure" network. That additional wireless connection is a clear risk to
the local network.

> I maintain a 15 user, 1 server network. I use static IPs so even
> if someone walked in there w/ a laptop, they can't connect unless we give
> them an IP on the subnet. The last thing I wanted was people walking into
> the office and connecting to the network. How many of your users use
> laptops?












Posted by donnie on April 12, 2006, 6:41 pm
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On Tue, 11 Apr 2006 08:40:11 -0600 (MDT), Borked Pseudo Mailed

>If that machine is compromised, which is MUCH easier to do on a LAN than a
>WAN, then it could very easily be used to access the poster's local
>"secure" network. That additional wireless connection is a clear risk to
>the local network.
#########################################
I knew someone was going to say that but I don't think it's as bad as
that. If I connected to an opened wireless router w/ my laptop,
chances are that they won't even know that I am there let alone see my
machine, check it for any trojans or unprotected shares and continue
to other machines on my side. It may be possible, but the word
"easily" should be removed from that scenario.

Posted by donnie on April 13, 2006, 8:19 pm
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On Thu, 13 Apr 2006 04:30:25 +0200 (CEST), George Orwell

>No, it shouldn't. I didn't say a machine could be easily compromised, I
>said it is MUCH easier to do on a local network, and that is a correct
>statement. I never once said anything about the difficulty of cracking any
>given machine because that depends entirely on the machine and its
>operator.
###########################################
Then to put an end to all the guessing, the original poster should
connect a laptop through a wired NIC to his network, since he said
everything else was wired and put a wireless card in it at the same
time. Then take another laptop w/ a wireless NIC, sit in front of
the building and see what happens. Then he will know if there are any
so called ad-hoc computers or unsecured networks that might be a
threat to him. Testing the actuall scenario that he described is the
best way to go. The test could be done from time to time in case the
outside circumstances change.

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