Re: [HASMAT] HSTS Threat prevalence

Devdatta Akhawe <dev.akhawe@gmail.com> Fri, 06 August 2010 19:09 UTC

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From: Devdatta Akhawe <dev.akhawe@gmail.com>
Date: Fri, 06 Aug 2010 12:09:21 -0700
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To: "Steingruebl, Andy" <asteingruebl@paypal-inc.com>
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Cc: IETF HASMAT list <hasmat@ietf.org>
Subject: Re: [HASMAT] HSTS Threat prevalence
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#1 would be good - for a reasonably representative sample (i.e. no
stories ' I once sat in a cafe and ... ').


cheers
devdatta

On 6 August 2010 11:52, Steingruebl, Andy <asteingruebl@paypal-inc.com> wrote:
>> -----Original Message-----
>> From: hasmat-bounces@ietf.org [mailto:hasmat-bounces@ietf.org] On
>> Behalf Of Devdatta Akhawe
>> Sent: Friday, August 06, 2010 11:36 AM
>> To: IETF HASMAT list
>> Subject: [HASMAT] HSTS Threat prevalence
>>
>> Hi all
>>
>> The HSTS specification talks about possible attacks that could be prevented
>> by the use of HSTS. Do we have any data that suggests these attacks are
>> actually a concern / being used by attackers anywhere ? I couldn't find any
>> citation to this effect in the specification.
>
> We are actively doing research in this area, but we don't know of any published work at this point.
>
> For the wider audience - do you want to know:
> 1. Whether this is occurring
> 2. Its overall frequency/distribution
> 3. Both
>
> Which of these would be most compelling?  On a percentage basis the number of connections being observed by passive network attackers is probably very small.  That doesn't by itself mean to should get rid of TLS.
>
> Me - I initially want the answer to #1, and then to #2.
>
> - Andy
>