Re: [DNSOP] Working Group Last call for draft-ietf-dnsop-dns-error-reporting

[Ben Schwartz <[e-mail]>]

I want this draft to move forward, but upon review I noted with concern the security section text:


   DNS error reporting is done without any authentication between the
   reporting resolver and the authoritative server of the agent domain.
   Authentication significantly increases the burden on the reporting
   resolver without any benefit to the monitoring agent, authoritative
   server or reporting resolver.

Strong authentication (e.g. to a zone identity with DNSSEC) is probably excessive, but the current draft appears to have no defense against even trivial IP spoofing.  Anyone in the world who can spoof IP addresses can impersonate a reputable resolver and pollute the error reports sent to authoritative servers.  As an authoritative server operator, I would place a lot more trust in reports from reputable resolvers than from unrecognized sources.

I think the draft should probably say something like: "To defend against spoofing of source IP addresses used for error reports, reporting resolvers MUST use DNS over TCP [RFC 7766], DNS COOKIE [RFC 7873], or another procedure that defeats IP address spoofing."

--Ben Schwartz
________________________________
From: DNSOP <[e-mail]> on behalf of Benno Overeinder <[e-mail]>
Sent: Thursday, June 8, 2023 5:59 AM
To: DNSOP Working Group <[e-mail]>
Cc: DNSOP Chairs <[e-mail]>
Subject: [DNSOP] Working Group Last call for draft-ietf-dnsop-dns-error-reporting

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Dear DNSOP WG,

The authors and the chairs feel this document has reached the stage
where it's ready for Working Group Last Call.

This starts a Working Group Last Call for:
draft-ietf-dnsop-dns-error-reporting.

Current versions of the draft is available here:
https://datatracker.ietf.org/doc/draft-ietf-dnsop-dns-error-reporting/ .

The Current Intended Status of this document is: Standards Track.

Please review the draft and offer relevant comments.
If this does not seem appropriate please speak out.
If someone feels the document is *not* ready for publication, please
speak out with your reasons.
Supporting statements that the document is ready are also welcome.

This starts a two week Working Group Last Call process, and ends on:
June 22nd, 2023.

Thanks,

-- Benno

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