Snort mailing list archives

Re: Diameter


From: asiaimbiss <karan_singhania1 () yahoo de>
Date: Wed, 11 Apr 2012 13:03:19 +0200

On 11.04.2012 01:42, Joshua Kinard wrote:
On 04/10/2012 7:11 AM, karan singhania wrote:

hi everyone,
does anyone know how to parse diameter protocol traffic with snort?
Doesn't Diameter travel primarily over SCTP?  Snort needs to support that in
some mediocre format first.  I started a patch for basic SCTP support, but
haven't worked on it in over a year now.

I also think Diameter can travel over TCP, too.  So that would just be a
matter of using whatever RFC's or protocol documents exist to parse Diameter
and interface with Snort's internal APIs to create a dynamic preprocessor to
inspect the traffic and possibly expose a few rule options for rule writers.

Either case is going to be a challenge.  Not sure if SCTP or Diameter is
high on the developer's list of priorities.

yes...it really seems to be a challenge. there's a language called 
binpac for describing protocol parser...it works very well with bro 
(another ids).
unfortunately i haven't found anything similar with snort

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