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Re: [Captive-portals] Questions about PvD/API

Lorenzo Colitti <lorenzo@google.com> Thu, 24 August 2017 14:41 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Thu, 24 Aug 2017 23:40:43 +0900
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To: David Bird <dbird@google.com>
Cc: Martin Thomson <martin.thomson@gmail.com>, Erik Kline <ek@google.com>, "Eric Vyncke (evyncke)" <evyncke@cisco.com>, captive-portals@ietf.org, Tommy Pauly <tpauly@apple.com>
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Subject: Re: [Captive-portals] Questions about PvD/API
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A forged destination unreachable can't cause someone else's device to think
that wifi is a portal and switch to possibly expensive cellular data.

On Thu, Aug 24, 2017 at 11:29 PM, David Bird <dbird@google.com> wrote:

> Just like the rampant problem we see in ICMP Dest-Unreachable forgery
> attacks?
>
> On Thu, Aug 24, 2017 at 7:01 AM, Lorenzo Colitti <lorenzo@google.com>
> wrote:
>
>> On Thu, Aug 24, 2017 at 10:40 PM, David Bird <dbird@google.com> wrote:
>>
>>> Can you give an example of how ICMP could be misconfigured?
>>>
>>
>> It doesn't matter how hard it is to misconfigure, because it is trivial
>> to forge.
>>
>
>

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