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| Subject: | Re: [Snort-sigs] SNMP Missing Community String Signature FP |
|---|---|
| Date: | Mon, 10 Jul 2006 18:52:48 -0500 |
Matt, agreed.
Best Regards,
Eric S. Hines, GCIA, CISSP CEO, President, Chairman Applied Watch Technologies, LLC
--------------------------------------------------
Eric S. Hines, GCIA, CISSP CEO, President, Chairman Applied Watch Technologies, LLC
--------------------------------------------------
Email: eric.hines@appliedwatch.com
Address: 1095 Pingree Road
Suite 213
Crystal Lake, IL
60014
Tel: (877) 262-7593 ext:327
Local: (847) 854-5831
Fax: (847) 854-5106
Web: http://www.appliedwatch.com-------------------------------------------------- Security Management for the Open Source Enterprise
Eric Hines wrote:Nigel,
Packet pasted below starting from UDP Header. You are correct, as Jon pointed out, the 5 byte offset was starting from the UDP header instead of the Payload.
But it still begs to ask as to why the rule is firing when the payload does in fact contain the public community string. Why search for |04 00| ? What would the |04 00| be indicative of if the payload does contain the community string?
That's the terminating sequence for the community string. (End-of-text NUL)
I think the theory is to look for a community string that is just a terminator.
Apparently the theory doesn't work so well in this case.
eric.hines.vcf
Description: Vcard
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