W3C home > Mailing lists > Public > public-webappsec@w3.org > July 2014

Re: SRI and CORS

From: Anne van Kesteren <annevk@annevk.nl>
Date: Thu, 17 Jul 2014 10:12:48 +0200
Message-ID: <CADnb78goYE7o9g-cMaCCW3EaL5mKbWgEUdqDne1tSg5YSKZV3w@mail.gmail.com>
To: Brad Hill <hillbrad@gmail.com>
Cc: Frederik Braun <fbraun@mozilla.com>, "public-webappsec@w3.org" <public-webappsec@w3.org>
On Wed, Jul 16, 2014 at 4:35 PM, Brad Hill <hillbrad@gmail.com> wrote:
> Well, valid JavaScript included via <script src=x> already is
> opted-out of the same origin read policy, (except for comments) so we
> could make the same exception for SRI.  Since script integrity is one
> of the most important use cases for SRI, it would make otherwise
> mandating CORS-enabled less painful.

This seems like a very bad idea.

We should not expand the attack surface. The focus ought to be on
tightening, not loosening, the security policies.


-- 
http://annevankesteren.nl/
Received on Thursday, 17 July 2014 08:13:16 UTC

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