Snort mailing list archives
Re: BAD TRAFFIC bad frag bits
From: Jeff Nathan <jeff () snort org>
Date: Thu, 27 Mar 2003 16:48:49 -0800
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 One situation this occurs in is Linux Path MTU discovery. See: http://kerneltrap.org/node.php?id=579 - -Jeff - --On Thursday, March 27, 2003 15:41 -0800 Clayton Mascarenhas <masclaythesnort () yahoo com> wrote:
Hi list, I got this "Bad traffic bad frag bits" alert. 03/20-01:00:09.476681 [**] [1:1322:4] BAD TRAFFIC bad frag bits [**] [Classification: Misc activity] [Priority: 3] {UDP} 2.3.4.5 -> 1.2.3.4 This comes when the Dont Fragment and More fragment bits are set. When will this situation occur?? In the alert shown what could possibly make the 2.3.4.5 machine send such a packet to 1.2.3.4? And why would an attacker want to craft such a packet when it actually doesnt help the attacker in any way? Thanks in advance. __________________________________________________ Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop!
- -- http://cerberus.sourcefire.com/~jeff (gpg key available) "Great spirits have always encountered violent opposition from mediocre minds." - - Albert Einstein -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (Darwin) iD8DBQE+g5v3Eqr8+Gkj0/0RArQvAKC+3UG3D1wPPhULXwBGCTOC4z+zwQCfVqrE egiScX0vOGNeO+XDMwztDwQ= =V8ck -----END PGP SIGNATURE----- ------------------------------------------------------- This SF.net email is sponsored by: The Definitive IT and Networking Event. Be There! NetWorld+Interop Las Vegas 2003 -- Register today! http://ads.sourceforge.net/cgi-bin/redirect.pl?keyn0001en _______________________________________________ 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:
- BAD TRAFFIC bad frag bits Clayton Mascarenhas (Mar 27)
- Re: BAD TRAFFIC bad frag bits Jeff Nathan (Mar 27)