RE: Interlopers on the WLAN

["Marcus J. Ranum" <mjr () ranum com>]

Frank O'Dwyer wrote:
> If he were doing this over someone's open WLAN 
> > while parked on the street out front, all he'd need to do is drive 
> > away and it would be next to impossible to find him.

Actually, if you get into the guts of the cards' registers you
can often get values such as signal strength from the card. So
in theory you could triangulate and locate your war-driver if
you had one that was foolish enough to walk into such a trap.
I think you could even enhance the accuracy of the system by
taking a version of netstumbler and a variety of antennas and
generating "registered" signals - just build a map of strengths
against known values, and do a table-lookup when you get a
war-driver, then call a fire mission on the preregistered location.

I don't know of anyone who has done this yet but it seems an
obvious enough application...   Might make for a fun invited
talk for DEFCON. ;)

mjr.
---
Marcus J. Ranum                         http://www.ranum.com
Computer and Communications Security    mjr () ranum com

_______________________________________________
firewall-wizards mailing list
firewall-wizards () honor icsalabs com
http://honor.icsalabs.com/mailman/listinfo/firewall-wizards