Snort mailing list archives
Re: snort sees no fragmented attack
From: Holger.Woehle () arcor net
Date: Mon, 12 Aug 2002 15:22:11 +0100
Well, in 1.9 w/ a 1.9 ruleset, you should turn on preprocessor stream4: asynchronous_link you are running into the state machines actually caring about the state of a TCP session which it can't ascertain w/o haivng both sides of the conversation. This is not related to fragmentation. -- Chris Green <cmg () sourcefire com> A good pun is its own reword.
Holger.Woehle () arcor net writes:
echo "GET /aaaaaaa/aaa/aaaaa/aaaaaaaa/aaaaaaa/bcc/bin/ps" | ncThe Sensor listens behind a Shomiti Ethernet TAP. May this be the problem ? The Sensor only catches the "incoming" traffic. I do not want the answers from the machines. Am i wrong with that ? Does snort neeed the outgoing traffic for defrag ?
...i switched on the asynchronous_link but it doesn't change anything. I noticed that i cannot use the "flow" option even with asynchronous link... Snort 1.9 does not recognize the alarms declared with "flow:to_server,established" . cu Holger ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ 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 sees no fragmented attack Holger . Woehle (Aug 09)
- Re: snort sees no fragmented attack Chris Green (Aug 09)
- Re: snort sees no fragmented attack Andreas Östling (Aug 09)
- Re: snort sees no fragmented attack Matt Kettler (Aug 09)
- Autoblock on Linux Lionel Fairon (Aug 09)
- <Possible follow-ups>
- snort sees no fragmented attack Holger . Woehle (Aug 09)
- Re: snort sees no fragmented attack Holger . Woehle (Aug 12)
- Re: Re: snort sees no fragmented attack Chris Green (Aug 12)
- Re: snort sees no fragmented attack Holger . Woehle (Aug 12)