Penetration Testing mailing list archives

Re: [PEN-TEST] Spoofing switched networks


From: "Lindqvist, Johan" <johan.lindqvist () DRIFTBOLAGET COM>
Date: Tue, 6 Feb 2001 17:48:45 +0100

Hi.

Actually, sniffing isnt' that heard either.  There are 
several ways to do
it such as making the switch you are a trunk port and you need all the
traffic.  In order words, don't put a switch and VLANs in 
place and expect
that to be your security because they can be defeated.

As for switching, I'm fully aware that it's not a security mechanism that
cannot be defeated easily. However that VLANs have no security impact is
news to me. Since VLANS are defined on physical switch port basis, how could
they be used to receive or send traffic on other VLANs?

/Johan

-- 
Johan Lindqvist
Security Specialist


DRIFTBOLAGET AB, MÖLNDALSVÄGEN 81, 412 63 GÖTEBORG, SWEDEN
PHONE: +46 8-23 92 00 FAX: +46 709-73 46 70
DIRECT: +46 31-760 43 07 MOBILE: +46 709-73 87 07 
johan.lindqvist () driftbolaget com http://www.driftbolaget.com 


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