Re: [quicwg/base-drafts] Attacks Against Address Migration (#2582)

Mike Bishop <notifications@github.com> Thu, 18 April 2019 23:08 UTC

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Subject: Re: [quicwg/base-drafts] Attacks Against Address Migration (#2582)
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I think the attacker's ability to do this argues for ignoring PATH_RESPONSE frames that mismatch rather than actively considering the validation to have failed; we added that text already:

> Note that receipt on a different local address does not result in path validation failure, as it might be a result of a forwarded packet (see Section 9.3.3) or misrouting. It is possible that a valid PATH_RESPONSE might be received in the future.

This text perhaps needs to be broadened to talk about both source and destination address rather than simply "local address."

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