[Bro] More crypto ID

Johanna Amann johanna at icir.org
Fri Jul 8 14:09:32 PDT 2016


Bro currently does not support parsing QUIC at all - so you are correct 
- you won't get any data outside of conn.log for QUIC sessions.

Johanna

On 8 Jul 2016, at 13:30, James Lay wrote:

> Argh...yea you're right wrong stream.  I am including a QUIC crypto 
> session that bro does not seem to recognize.  Only thing I have for 
> bro seeing this stream is:
>
> 2016-07-02T14:46:30-0600        CWaKhQ3UAvIEem73fj      192.168.1.101  
>  38848   31.13.76.102    443     tcp     -       0.026353        1725  
>   0       RSTR   TF       0       ShADar  5       1993    5       268  
>    (empty)
>
> Thank you.
>
> James
>
> On 2016-07-08 14:21, Johanna Amann wrote:
>> Hello James,
>>
>> it is TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 and should be
>> correctly identified by master. The use of that number is newer than
>> Bro 2.4, which is why it is not present there. That cipher is
>> specified in RFC7905.
>>
>> Thanks,
>>  Johanna
>>
>> On 8 Jul 2016, at 13:13, James Lay wrote:
>>
>>> FYI:
>>>
>>> 2016-07-01T12:35:15-0600        CyqleS3tHf607yRdrj      
>>> 192.168.1.101
>>> 38151   31.13.76.102    443     TLSv12  unknown-52393   -
>>> graph.facebook.com     F-       h2      T
>>> Fq3gsi3bxz1RdtYqej,FiQmMNkbUAqhiOOkk    (empty)
>>> CN=*.facebook.com,O=Facebook\\, Inc.,L=Menlo Park,ST=CA,C=US
>>> CN=DigiCert SHA2 High Assurance Server 
>>> CA,OU=www.digicert.com,O=DigiCert
>>> Inc,C=US       -       -       ok
>>>
>>> unkonwn-52393 is apparently QUIC crypto.
>>>
>>> James
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>>> bro at bro-ids.org
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