Something else right along this train of thought - client configuration.
If the client is configured to connect to any AP, then you have no idea
where your laptops are connecting to. I have a client in a major
metropolitan area. Walking around in their office, there are about 40
wireless networks. One of the people from another office recently
commented how handy it was that they installed wireless.....ah, they
hadn't. That means she was connecting to an AP in some other office.
-----Original Message-----
From: steven@lovebug.org [mailto:steven@lovebug.org]
Sent: Thursday, March 30, 2006 10:24 PM
To: Matthew Webster
Cc: pen-test@securityfocus.com
Subject: Re: Wireless Audit Reports
Hello,
I have been reading all of these replies and would just like to throw in
a
little bit more. Someone mentioned that a person could setup another AP
to
lure in people from your network. This is definitely a potential risk
as
they can do this in a few ways. They could just stand up their AP with
their own SSID and hope for someone else to connect and attempt to
compromise their machine, sniff traffic, and/or conduct MITM attacks.
They could also do the same thing by cloning the name of your network's
SSID. I am not sure how many APs your environment has, but it might be
worth documenting all of the instances of the valid SSID and the
associated MAC addresses. If you are going by SSID alone it is possible
that there is a fake AP they showed up and it could be overlooked.
Documenting the MAC addresses, channel, location, IP address, etc of
your
APs and looking for any anomalies might be good too. If you are going
to
be doing consistent reports you can always refer to your previously
collected information.
Also, as I am sure you have know and has been referenced in another post
-- your report is only as accurate as the time period for which your
audit
was conducted. Ad-hoc networks, rogue APs can be plugged in an
unplugged
at any moment. Unless you have something like AirDefense or a WLSE --
you
need to frequently check to be sure you are consistently free of these
things. Ad-hoc (peer-to-peer) networks are frequently overlooked and
area
decent risk, especially if your machines aren't fully patched. If you
want to have a full and comprehensive report, make sure you are looking
at
802.11a/b/g.
Anyway -- I hope that helps. Btw.. what "tools" are you using now?
Steven
Hi,
I work in an environment that has a policy that does not permit
wireless devices. We still do an "audit" of the area to ensure that
there are no wireless devices in our area. I wish to prove that there
are no devices. Being in a city, there are literally hundreds of
wireless networks present - perhaps up to 50 in any one given area of
our building. I have tracked the signals down and have determined
that
there are no rogue access points or peer networks hidden in our
portion
of the building.
Now a traditional wireless audit would be easy. I could report
the signal strengths of our devices, if the SSID's are correct, are
non-broadcast, etc. That would be an easy report to create after data
collection. In this case, I am trying to prove a negative. I can
list
networks, signal strengths, etc. but I feel like I am fluffing the
report with meaningless and time wasting statistics. Does anyone have
any experience in what they would report under these circumstances?
Matt
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