Snort mailing list archives
Re: not detecting common intrusion
From: Erek Adams <erek () theadamsfamily net>
Date: Wed, 26 Jun 2002 16:51:20 -0700 (PDT)
On Wed, 26 Jun 2002, Cearns Angela wrote: [...snip...]
However, I've a new problem. Please note I'm running snort with all default rules. - I tried the "ping -l 1600 hostname" command to send out abnormally large icmp packets - snort, mysql, ACID, everything seemed to work and logged and displayed the abnomality, indicating "large ICMP packets". - Then I tried simple ping flood (ping -f)and sync flood (synflood), yet snort doesn't detect anything?
Because there isn't a rule or a preprocessor to detect syn floods or ping floods. You can't use a rule, since there's not a "X packets over Y time" logic built into the rule parser. You'd have to have some sort of preprocessor similar to the portscan preprocessor to do that. Cheers. ----- Erek Adams Nifty-Type-Guy TheAdamsFamily.Net ------------------------------------------------------- This sf.net email is sponsored by: Jabber Inc. Don't miss the IM event of the season | Special offer for OSDN members! JabberConf 2002, Aug. 20-22, Keystone, CO http://www.jabberconf.com/osdn _______________________________________________ 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:
- snort-mysql installation - not logging Cearns Angela (Jun 25)
- <Possible follow-ups>
- Re: snort-mysql installation - not logging Roman Danyliw (Jun 26)
- not detecting common intrusion Cearns Angela (Jun 26)
- Re: not detecting common intrusion Erek Adams (Jun 26)
- Re: not detecting common intrusion Cearns Angela (Jun 26)
- Re: not detecting common intrusion Erek Adams (Jun 26)
- Re: not detecting common intrusion Cearns Angela (Jun 26)
- Re: not detecting common intrusion Erek Adams (Jun 27)
- Re: not detecting common intrusion Jeff Nathan (Jun 27)
- not detecting common intrusion Cearns Angela (Jun 26)