Re: Flags rule option

[Martin Roesch <roesch () sourcefire com>]

What version of Snort are you using?  Can you look at the BUGS file and give
us a formatted report?

     -Marty


On 9/26/02 8:21 PM, "Bill McCarty" <bmccarty () apu edu> wrote:

> Hi all,
>
> I have the following Snort rule:
>
> alert tcp any any -> XXX.XXX.XXX.XXX 1024:65535 (flags:S+; flags:A!;
> msg:"Local suspicious inbound"; )
>
> This rule matches the following datagram:
>
> 09/26/02-15:49:14.256645 YYY.YYY.YYY.YYY:80 -> XXX.XXX.XXX.XXX:24247
> TCP TTL:237 TOS:0x0 ID:0 IpLen:20 DgmLen:40 DF
> *****R** Seq: 0x2ED4C858 Ack: 0x0 Win: 0x0 TcpLen: 20
>
> I think that both flags options must be matched in order for the rule as a
> whole to match. Yet, the matching datagram does not have the S flag set.
> What am I missing?
>
> Thanks!
>
> ---------------------------------------------------
> Bill McCarty
>
>
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-- 
Martin Roesch - Founder/CTO Sourcefire Inc. - (410) 290-1616
Sourcefire: Professional Snort Sensor and Management Console appliances
roesch () sourcefire com - http://www.sourcefire.com
Snort: Open Source Network IDS - http://www.snort.org



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