Snort mailing list archives
Re: snort sees no fragmented attack
From: Chris Green <cmg () sourcefire com>
Date: Fri, 09 Aug 2002 08:28:50 -0400
Holger.Woehle () arcor net writes:
Hello, why does snort sees the following attack: echo "GET /aaaaaaa/aaa/aaaaa/aaaaaaaa/aaaaaaa/bcc/bin/ps" | nc Snort does not reassemble the packet, and so he does not recognize this attack!
Snort Version? OS? Platform? Have you tried against 1.9beta2?
Can i adjust the preprozessors or the rule to catch this attack ? alert tcp $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"WEB-ATTACKS ps command attempt"; flags:A+; uricontent:"/bin/ps"; nocase; sid:1328; classtype:web-application-attack; rev:4;)
Please send me traffic captures of this attack if you can. I would like to see why it's not working in your enviroment. tcpdump -i eth0 -s 1514 host attackerip -w fragmented-ps.cap -- Chris Green <cmg () sourcefire com> A good pun is its own reword. ------------------------------------------------------- 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)