Re: [Dots] DOTS Telemetry: Interop Clarification #3

[[e-mail]]

Re-,

Please see inline.

Cheers,
Med

De : Konda, Tirumaleswar Reddy [mailto:[e-mail]]
Envoyé : vendredi 26 juin 2020 08:36
À : BOUCADAIR Mohamed TGI/OLN; kaname nishizuka
Cc : [e-mail]
Objet : RE: DOTS Telemetry: Interop Clarification #3

I meant attack mapping details can be sent in the DOTS data channel and no need to use DOTS signal channel.
[Med] Sure. We are not changing this behavior.

The capabilities of a DOTS mitigator cannot be updated dynamically during mitigation that would warrant the need to send the attack-description in the DOTS signal channel during attack mitigation.
[Med] The issue is when the mapping details were updated but the client didn't retrieved the up-to-date list. If an attack occurs, sending the attack-id only won't be useful for the client; hence the need to send also the attack-name if attack-details are included in the telemetry data.

Identifying a new attack requires update to the DOTS mitigator, human-intervention is required to create the attack description and attack-id.
[Med] We are not making assumptions why the mapping details are not in-sync between the client and server.

In short, no need overload DOTS signal channel to send the attack description.
[Med] As you know, the reco we have is to avoid sending attack-name in the signal channel. There are exceptions where the attack-name may be included, though.

-Tiru

From: [e-mail] <[e-mail]>
Sent: Friday, June 26, 2020 11:34 AM
To: Konda, Tirumaleswar Reddy <[e-mail]>; kaname nishizuka <[e-mail]>
Cc: [e-mail]
Subject: RE: DOTS Telemetry: Interop Clarification #3


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Hi Tiru,

Not sure to get your comment. Can you please clarify?

Cheers,
Med

De : Konda, Tirumaleswar Reddy [mailto:[e-mail]]
Envoyé : vendredi 26 juin 2020 07:15
À : BOUCADAIR Mohamed TGI/OLN; kaname nishizuka
Cc : [e-mail]<mailto:[e-mail]>
Objet : RE: DOTS Telemetry: Interop Clarification #3

Hi Med,

I don't think the capabilities of the mitigator will get updated dynamically during an active attack to send the new attack details (attack-name) in the DOTS signal channel protocol.

Cheers,
-Tiru

From: Dots <[e-mail]<mailto:[e-mail]>> On Behalf Of [e-mail]<mailto:[e-mail]>
Sent: Friday, June 26, 2020 1:02 AM
To: kaname nishizuka <[e-mail]<mailto:[e-mail]>>
Cc: [e-mail]<mailto:[e-mail]>
Subject: [Dots] DOTS Telemetry: Interop Clarification #3


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Re-,

You reported the following in the interim :
==
3."DOTS agents MUST NOT include 'attack-name' attribute except if the corresponding attack mapping details were not shared with the peer DOTS agent". But how can the DOTS server know they're shared or not?
===

This is implementation-specific. The DOTS server may record which version of the mapping table it shared with a DOTS client.

Do you think that we need to include such details in the spec? or do you have mind something else?

Thanks.

Cheers,
Med



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