RE: Protocol Anomaly Detection IDS - Honeypots

["Adam Powers" <apowers () lancope com>]

Indeed, the true value of the honeypot does lies in detection and the
reduction of false positives.

Most of the discussion thus far has been in regards to packet and
session specific protocol anomalies. We must also consider policy-based
anomalies. These include deviations from normal or acceptable behavior
that's unrelated to the payload or makeup of a given datagram.

Projects such as honeyd (my personal favorite for this task) and LeBrea
provide a convenient mechanism for creating "network booby-traps". As
Lance points our, when hosts access honeypot resources there's rarely a
legitimate reason. Short of a fat fingered addr or malfunctioning app,
connections to honeypot hosts are almost always a SURE sign of nefarious
behavior.

I think it'll be interesting how we vendors import honeypot
functionality (for the above listed cause and others) into their
technologies.





-----Original Message-----
From: Lance Spitzner [mailto:lance () honeynet org] 
Sent: Thursday, February 20, 2003 1:59 PM
To: Robert Graham
Cc: Focus on Intrusion Detection Systems; slyph () alum mit edu
Subject: Re: Protocol Anomaly Detection IDS - Honeypots

On Wed, 19 Feb 2003, Robert Graham wrote:

> People have been hoping that there is some sort of magic-pill
technology that
> solves the problem of IDS. "Protocol-anomaly detection" is one of
those
> buzzwords that promises a magic pill.

Okay, I'll admit, to me alot of the security problems I see are nothing
more then nails, and honeypots are the hammer.  However, seriously, have
folks
considered the detection capabilities of honeypots?  The reason I bring
this up in this thread, is for honeypots, everything is an anamoly.  The
concept of a honeypot is it has no production or authorized activity.  
Everything it captures its way is most likely malicious activity.  Not
only that, but you dramaticaly reduce 'noise'.  Instead of dealing with
5,000 alerts a day (not that high of a number for many organizations) a 
honeypot in the same environment could only generate 5 or 10 alerts a
day, 
alerts you most likely need to take action on.  These small data sets
can make it far easier and cost effective to identify and act on 
unauthorized activity.

I'm in no way suggesting that honeypots replace any existing detection
technologies, I'm suggesting that can contribute.  Personally, I feel
the concept of deception has overshadowed the value of honeypots, when
one of their true values lies in detection.

lance


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-----------------------------------------------------------
Does your IDS have Intelligent Attack Profiling?
If not, see what you're missing.
Download a free 15-day trial of StillSecure Border Guard.
http://www.securityfocus.com/stillsecure