Snort mailing list archives
Re: Confused about rules and logs
From: Richard Bejtlich <richard_bejtlich () yahoo com>
Date: Mon, 10 May 2004 04:11:12 -0700 (PDT)
b311b wrote: I'm running snort version 1.7 on a NetBSD Firewall. -- I strongly recommend you upgrade to a version of Snort not found in the www.snort.org/dl/do_not_use/ directory. The version you are running is vulnerable to several exploits. (www.cert.org/advisories/CA-2003-13.html) Don't feel too badly about your spp_portscan alerts. You can't solve the issue for the same reason we can't -- you only have alert data on hand. Alert data is rarely sufficient on its own. You need to augment alert data from Snort with full content and/or session data. For full content data, I recommend using Ethereal (www.ethereal.com); watch for UDP traffic from 192.168.2.252. If you're on a really busy network and want a bigger picture view, use Argus (www.qosient.com/argus) to collect session data. Watch for sessions involving 192.168.2.252. Remember Snort alerts are only indicators. They are the start of an investigation, not the end. It's the same for every IDS. If you need help deciphering what you see, post a trace here. Sincerely, Richard http://www.taosecurity.com __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover ------------------------------------------------------- This SF.Net email is sponsored by Sleepycat Software Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to deliver higher performing products faster, at low TCO. http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3 _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- Confused about rules and logs b311b-snort (May 09)
- <Possible follow-ups>
- Re: Confused about rules and logs Richard Bejtlich (May 10)
- Re: Re: Confused about rules and logs b311b-snort (May 10)
- Re: Confused about rules and logs Richard Bejtlich (May 10)