Snort mailing list archives

Re: Bad range in Snort rules


From: "Joel Esler (jesler)" <jesler () cisco com>
Date: Mon, 16 Dec 2013 17:00:32 +0000

Lukas, yes, this will be fixed in an upcoming release.

--
Joel Esler
Intelligence Lead
OpenSource Manager
Vulnerability Research Team
Jabber: jesler () cisco com<mailto:jesler () cisco com>

On Dec 16, 2013, at 5:12 AM, Lukas Matt <lukas.matt () sophos com<mailto:lukas.matt () sophos com>> wrote:

Hey guys,

I ran into following error message "Bad range: 4294967296"
That affect rule 28519 and 28514. The problem here is following part:
byte_test:4,>,4294967296,18,relative,little;
Under 32bit the maximum Int is 2^32-1 but in the rule you forgot to subtract 1.
I checked also the documentation and the maximum for your byte_test is 4294967295.

Could you double check that?

Cheers,
Lukas



--
Lukas Matt
Deep Packet Inspection Researcher, RnD

tel: +49-721-25516-322, cell: +49-174-3440-555

Sophos Technology GmbH
Amalienbadstr. 41/Bau 52, 76227 Karlsruhe, Germany

SOPHOS Security made simple

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