[Snort-users] Disabling Rules via disablesid.conf

Vona, Steven A CIV NSWCCD Philadelphia, 10411 steven.vona at ...7622...
Fri Feb 6 11:54:26 EST 2015


I have snort.conf pointing to so_rules directory which holds bad_traffic.rules.

It looks like my so_rules directory hasn't been updated since 2012.  Are these needed?

-----Original Message-----
From: Jason Wallace [mailto:jason.r.wallace at ...11827...] 
Sent: Friday, February 06, 2015 10:32 AM
To: Y M
Cc: Vona, Steven A CIV NSWCCD Philadelphia, 10411; snort-users
Subject: Re: [Snort-users] Disabling Rules via disablesid.conf

Also, make sure that your snort.conf is actually pointing to the file(s) being created/edited by pulledpork. The current registered version of bad_traffic.rules doesn't have any rules in it, so this makes me wonder if your snort.conf isn't pointed at the correct rule file(s).

On Fri, Feb 6, 2015 at 9:30 AM, Y M <snort at ...15979...> wrote:




	> From: steven.vona at ...7622...
	> To: snort at ...15979...
	> CC: snort-users at lists.sourceforge.net
	> Subject: RE: [Snort-users] Disabling Rules via disablesid.conf
	> Date: Fri, 6 Feb 2015 14:16:22 +0000
	> 
	> Thanks for the heads up. I followed your troubleshooting steps and I found the offending alert in bad_traffic.rules file. I deleted the line and it looks like they are disabled now.

	# Glad that you found the source of the issue. Just keep in mind that manual changes to .rules files, i.e.: deleting/commenting rules, will be overridden by the next rules update. Just a wild guess here, but from what you said you may have these two rules in multiple .rules files, which eventually are included in snort.conf. When running Snort, does the startup messages indicate anything about duplicate rules? Just to further verify.

	> 
	> Thanks again.
	> 
	> -----Original Message-----
	> From: Y M [mailto:snort at ...15979...] 
	> Sent: Friday, February 06, 2015 2:16 AM
	> To: Vona, Steven A CIV NSWCCD Philadelphia, 10411
	> Cc: snort-users
	> Subject: RE: [Snort-users] Disabling Rules via disablesid.conf
	> 
	> Comments inline.
	> 
	> 
	> From: steven.vona at ...7622...
	> To: snort-users at lists.sourceforge.net
	> Date: Thu, 5 Feb 2015 20:47:40 +0000
	> Subject: [Snort-users] Disabling Rules via disablesid.conf
	> 
	> 
	> I have Snort running on a few sensors around our network. We have subscriptions for the rules and we use pulledpork to download the rules daily.
	> 
	> I am not attempting to turn the rules a little bit to disable some items that we do not need to see. I put these in disablesid.conf file and when I run pulled pork I see:
	> 
	> Processing /etc/snort/disablesid.conf....
	> Disabled 3:21355
	> Disabled 3:19187
	> Modified 2 rules
	> Done
	> 
	> So it looks like it is disabling the rule, however I am still receiving alerts for the rule in my database.
	> 
	> Any ideas? 
	> ## Some ideas to troubleshoot: 1) verify that the same sids are not included in the enablesid.conf (lame but why not). 2) Has the order in which PulledPork processes rules been changed?. 3) if you grep for the sids from the snort.rules (given you reconcile rules vi PulledPork), do they exist? 4) Are these two rules included in another .rules file (local.rules or so)?
	> 
	> 
	> Additional info:
	> 
	> ,,_ -*> Snort! <*-
	> o" )~ Version 2.9.6.2 GRE (Build 77) 
	> '''' By Martin Roesch & The Snort Team: http://www.snort.org/snort/snort-team
	> Copyright (C) 2014 Cisco and/or its affiliates. All rights reserved.
	> Copyright (C) 1998-2013 Sourcefire, Inc., et al.
	> Using libpcap version 1.3.0
	> Using PCRE version: 7.8 2008-09-05
	> Using ZLIB version: 1.2.3
	> 
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