Snort mailing list archives
Re: !!Rolling back Snort rule files!!
From: Joel Esler <jesler () sourcefire com>
Date: Fri, 29 Oct 2010 14:27:18 -0400
Actually -b (I think) in oinkmaster does a backup before updating. But I the like the idea of being able to keep a couple backups and auto revert back if needed using pulledpork. JJ? -- Sent from my iPad On Oct 29, 2010, at 2:21 PM, "Weir, Jason" <jason.weir () nhrs org> wrote: I don't see it as an option in Oinkmaster - so here's a question for the Pulled Pork users - is there a "backup rules before updating" option? Maybe tar & gz the last 5 rules updates would be a good option, just in case you get a really screwed up ruleset.. -J -----Original Message----- *From:* JJ Cummings [mailto:cummingsj () gmail com] *Sent:* Friday, October 29, 2010 2:07 PM *To:* Miso Patel *Cc:* snort-sigs () lists sourceforge net *Subject:* Re: [Snort-sigs] !!Rolling back Snort rule files!! The other option that might work, grab all of the rules that are new / changed in this update and disable by sid using PP or oinkmaster, that should be maybe a 5 minute exercise. Sent from the iRoad On Oct 29, 2010, at 11:50, Miso Patel <miso.patel () gmail com> wrote: It looks like many of the MS Kodak imaging malformed tiff rules were from TIFF downloads from Akamai and Deltacom ... looks like a lot of MSNBC news sites. I am running Snort with gzip decoding eneabled. Anyone else seeing this? Thanks, I'm going to check our backups now. Miso Patel, CISO On Fri, Oct 29, 2010 at 12:35 PM, Joel Esler < <jesler () sourcefire com> jesler () sourcefire com> wrote:
There is not an option to use a "previous ruleset", you would have to backup your previous ruleset before you update it, since they are in the flat files. What SIDs are giving you the problems? Do you have pcaps for the traffic? After I received your emails I checked my alerts and I don't have either one of these (I'm not a good test case) alerting on my networks. Any more information you can provide? J On Oct 29, 2010, at 1:24 PM, Miso Patel wrote:Today we installed the newest VRT community rules on our Snort sensors.Almost immediately we started seeing increased alert volume and further investigation shows that these are all false positives. We see *tons* of events for the Microsoft Kodak imaging malformed tiff rules along with other alerts like Mozilla firefox image dragging exploit and more.Right now the SIEM is swamped and I've made the decision to go back tothe old rules ... is there an easy way to do this? I don't see them online and my engineers tell me that there is not an option in Snort to instruct it to use the previous ruleset (e.g. snort --use-prev). Any help is much appreciated.Thank you. Miso Patel, CISO
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Current thread:
- !!Rolling back Snort rule files!! Miso Patel (Oct 29)
- Re: !!Rolling back Snort rule files!! Joel Esler (Oct 29)
- Re: !!Rolling back Snort rule files!! Miso Patel (Oct 29)
- Re: !!Rolling back Snort rule files!! JJ Cummings (Oct 29)
- Re: !!Rolling back Snort rule files!! Weir, Jason (Oct 29)
- Re: !!Rolling back Snort rule files!! L0rd Ch0de1m0rt (Oct 29)
- Re: !!Rolling back Snort rule files!! Joel Esler (Oct 29)
- Re: !!Rolling back Snort rule files!! Weir, Jason (Oct 29)
- Re: !!Rolling back Snort rule files!! JJ Cummings (Oct 29)
- Re: !!Rolling back Snort rule files!! L0rd Ch0de1m0rt (Oct 29)
- Re: !!Rolling back Snort rule files!! Miso Patel (Oct 29)
- Re: !!Rolling back Snort rule files!! waldo kitty (Oct 29)
- Re: !!Rolling back Snort rule files!! Joel Esler (Oct 29)