Snort mailing list archives

Re: 1.8beta4 and "Classification" garbage


From: Martin Roesch <roesch () sourcefire com>
Date: Sun, 06 May 2001 23:14:56 -0400

Could you try version 1.8-beta4 (Build 18) please and let us know how it
goes?

     -Marty


"François Désarménien" wrote:

Hello, you all.

I'm currently investigating snort, as I have to write a snort agent for an
OpenSource log-consolidation project, and the Classification/Priority
options new to 1.8 were the ones I was waiting/looking for.

So I'm know running 1.8 beta4 from the cvs on Linux and I use the
bunch of snort logs from SN2000 to generate as much alerts I can,
and I noticed some garbage in the Classification field, ie :

...[**] WEB-IIS admin access [**] [Classification: ~P"^R^HÐ2^R^H(~G^R^H] [Priority: 10]...

That is those 12 chars:

0x90 0x22 0x12 0x08 0xD0 0x32 0x12 0x08 0x28 0x87 0x12 0x08

This garbage is consistent: the string is always the same. And the Priority is always set
to 10.

The portscan preprocessor also seems to have trouble with Priority/Classification, 

as it
sometimes affects (at first sight) random Classification/Priority values to its status reports,
and also generates garbaged Classifications once in a time...

The beta2 suffers the same symptoms...

I've not had time (yet) to investigate further, I hope this helps.

Thanks for snort and for your time,

François

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--
Martin Roesch
roesch () sourcefire com
http://www.sourcefire.com - http://www.snort.org

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