[ippm] Secdir early review of draft-ietf-ippm-ioam-direct-export-07

Stephen Farrell via Datatracker <noreply@ietf.org> Thu, 19 May 2022 15:37 UTC

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Date: Thu, 19 May 2022 08:37:13 -0700
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Subject: [ippm] Secdir early review of draft-ietf-ippm-ioam-direct-export-07
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Reviewer: Stephen Farrell
Review result: Has Issues

First, apologies for the dramatically late review. I hope this is still useful.

I think there are two issues worth considering:

1. The DEX scheme seems to create a potential for DoS based on storage whereas
I think prevously only DoS vectors related to traffic were documented in the
IAOM drafts. That's based on a quick scan though so I may have missed it being
considered.

2. I see no mention at all of privacy in this draft nor in
draft-ietf-ippm-ioam-data - I don't understand why that's ok given that privacy
leaks from the kind of metadata collected here can be subtle? Or maybe that's
in some other draft?