Re: [Iot-onboarding] [Mud] Some new stuff for mudmaker.org

Michael Richardson <mcr+ietf@sandelman.ca> Wed, 25 March 2020 23:39 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
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Date: Wed, 25 Mar 2020 19:39:29 -0400
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Subject: Re: [Iot-onboarding] [Mud] Some new stuff for mudmaker.org
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Eliot Lear <lear@cisco.com> wrote:
    >> Makes sense now. Still wondering what the network would do with the
    >> SBOM but that is a different thread.

    > Oh no it’s not! ;-)

    > If your NMS can pick up the SBOM, then the next step is to compare
    > packages and versions on the device with known CVEs.  At that point,
    > you have to decide on remediation strategies.  In some cases, those
    > remediation strategies may just suck.  Imagine a ventilator being
    > vulnerable today.  But one clearly GOOD strategy would be to limit that
    > ventilator’s exposure to attacks.  How might one go about doing that?
    > I wonder…

On that specific situation.
I really want to know what network needs a ventilator has other than
firmware updates, and some "mycontroller" connection.
If we assume that it already has a good MUD file, then I'm not sure I know
what immediate thing the network should do if there is a CVE.

Clearly, scheduling it for swap out is important, but you'd never shut it
down at that moment.  There is also a question about audit trail for when the
issue was noticed, when it upgrade was scheduled, when it actually was
upgraded, etc.

--
Michael Richardson <mcr+IETF@sandelman.ca>ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-