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Network Security Snort-Signatures
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Re: [Snort-sigs] Sid 1893 FP

Subject: Re: [Snort-sigs] Sid 1893 FP
Date: Wed, 5 Jul 2006 16:50:54 -0400
On Fri, Jun 16, 2006 at 10:41:45AM -0700, Blake Hartstein wrote:
Jon,
The rule is looking for |04 00| offset 5, and depth 15. Thus, it starts 
looking at that offset, then stops looking once it reaches depth 15.
It just so happens that the Request Id: 0x715e0400 is causing this rule 
to alert, even though a valid community string has been specified.

Sorry for never responding.  This has popped up again.

I agree with what you said.  Wouldn't this actually be a bug with this
rule, since the community in SNMP v1 and v2 starts at offset 5?  I don't
see the need to walk 15 in, unless there is something about SNMP I am
missing (which is entirely possible).

-jon

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