[Snort-users] Persistent problems with rule updates for Registerd Users

Michael Steele michaels at ...9077...
Fri Jan 4 18:53:01 EST 2013


There is no reason to do item 1. Once the new Snort update has been released
to the public, and it contains the current configurations for that day, then
there is no need to update it again until the next Snort release.
 
There is no reason to do item 2. As long as the rule sets contain the most
current configurations at all times.
 
When a new Snort version is released to the public, the new Snort release,
the Subscribers rule set, and the Registered Users rule set should all have
the same CURRENT configuration files, the absolute latest.
 
After the initial Snort release there is no need to update the Snort
executable until the next Snort release, just the Subscriber rule set, and
the registered User rule set need to be updated keeping the configuration
files always current between initial Snort releases.
 
The two configuration files that are being maintained on the Snort.org site
are available for those that prefer not to download the full set of rules
just for one of those configuration files. However, both of those files
should always match what is found in either set of rules.  
 
Not sure how people would be notified that if they only require the snort
executable that they might need to go onto the snort.org site and update the
snort.conf, and the classification.config, as they may be outdated  between
snort releases?
 
I don't want to automate anything that is not absolutely necessary. I could
automate the complete Windows Intrusion Detection System (WinIDS)
installation process, but nobody learns anything, and that's the whole point
behind why WinSnort.com exists.
 
Best regards,
Michael...
 
From: Joel Esler [mailto:jesler at ...1935...] 
Sent: Friday, January 04, 2013 1:53 PM
To: Michael Steele
Cc: snort-users at lists.sourceforge.net; 'Jeff Kell'
Subject: Re: [Snort-users] Persistent problems with rule updates for
Registerd Users
 
On Jan 4, 2013, at 12:55 PM, "Michael Steele" <
<mailto:michaels at ...9077...> michaels at ...9077...> wrote:



On the day Sourcefire released Snort 2.9.4.0 to the general public all
distributions, including the rule set for both groups should have contained
the very latest 'CURRENT' configuration files for Snort 2.9.4.0, but they
didn't (snort.conf contained reference to 'output database', and there were
missing port assignments).
 
I simply forgot to delete those lines.  I apologize on behalf of Sourcefire
for forgetting to remove those non-functional lines.   Sorry if that sounds
a little snarky, but they were nonfunctional. 
 
As far as missing port assignments, I'm quite sure that they weren't missing
port assignments at the time of release.  They are now, as I've added ports
since the time of release, but those changes would only affect a very small
number of rules (probably 5 or 6) that aren't going to be in the registered
rule release anyway until the snort.conf that goes with those rules rolls
into registered anyway and everything is good to go.  We aren't going to
reroll the tarball every time I make a change to the snort.confs.
 
So, here's our alternatives.  
 
1. We can subtract the snort.conf, classification, threshold, reference,
etc, from the tarball and distribute it only with the rules, which means
that you
A)  can't get a working Snort out of the box
B)  MUST download the VRT rules in order to get Snort to work
C)  Neither of these solutions would work for anyone.
 
2.  We can subtract the snort.conf, classification, etc, from the rule
tarball and distribute it only with the Snort tarball, which means that
A)  We have no way to update it detection once Snort has been shipped.
B)  Everyone gets screwed.
 
3.  We can prevent different snort.confs, classification, etc from existing.
We'll work on that.
 
4.  We can make Snort easier to set up by automating a lot of this.
Unfortunately, we won't be doing that for Windows users, as we're not going
to compile our Shared Object rules for the Windows platform.  Should be easy
enough for you to batch script up something for your "WinIDS" users though.
 
 After the initial release of Snort 2.9.4.0; to make SURE the end users have
access to all the 'CURRENT' configurations files on any given day, why not
just merge all the 'CURRENT' configuration files when new rules are added to
each group.
 
Not sure what you mean here.
 
When we release a new version of Snort the snort.conf that is shipped with
the tarball should be up to date with the VRT snort.conf and that VRT
snort.conf is what is in the tarball and what I put on the website.  I have
a bug into development now to see if we can rectify this in the future so it
can't happen anymore.  



There should be no reason why a new user can't just grab the Snort
executable, latest rule set (they are entitled to), install Snort, extract
the rule set into the snort folder, and end up with all 'CURRENT'
configuration files that were relevant from the previous day.
 
They can.  I don't see what you are saying here.
 
--
Joel Esler
Senior Research Engineer, VRT
OpenSource Community Manager
Sourcefire
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