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From Andrew Lunny <alu...@gmail.com>
Subject Re: sysapps runtime cfc passed
Date Wed, 20 Mar 2013 21:17:38 GMT
On 20 March 2013 13:54, Filip Maj <fil@adobe.com> wrote:

> Actually dude talks about CSP 1.1 supporting whitelisting of inline
> scripts ?
>

The relevant bit in the CSP spec is:
http://www.w3.org/TR/CSP/#script-src

tldr: servers can send CSPs (policies) that do allow inline scripts, but
the policy specified by sysapps[1] does not.

[1] default-src *; script-src 'self'; object-src 'none'; style-src 'self'


>
> On 3/20/13 8:39 AM, "Andrew Grieve" <agrieve@chromium.org> wrote:
>
> >This recent security talk talks about why inline scripts are on the way
> >out:
> >https://www.youtube.com/watch?feature=player_embedded&v=WljJ5guzcLs
> >
> >A good amount of the spec deals with application distribution, which is
> >out
> >of our hands when talking about App Stores.
> >
> >It uses a separate AppCache manifest to define what files are in the
> >bundle. Does this not imply that the whitelist is still in effect via the
> >Network: section of the AppCache manifest?
> >
> >
> >
> >
> >
> >On Wed, Mar 20, 2013 at 10:10 AM, Braden Shepherdson
> ><braden@chromium.org>wrote:
> >
> >> On the subject of no inline scripts or eval, this is used in the new v2
> >> Chrome Apps too. It eliminates a wide spectrum of security risks at a
> >> stroke, though it does require changing some of the older web dev
> >>practices
> >> (onclick="whatever", primarily). If you're already attaching handlers
> >>using
> >> jQuery, or using something like AngularJS, this is no change.
> >>
> >> Only loading scripts from inside the app package, I'm not sure. It
> >> eliminates the possibility of using a CDN, but the caching benefits of
> >>that
> >> are inferior to shipping the files in the bundle.
> >>
> >> Braden
> >>
> >>
> >> On Wed, Mar 20, 2013 at 6:46 AM, Brian LeRoux <b@brian.io> wrote:
> >>
> >> > Ok, picking this up again. At the working group Fil it would be good
> >> > to give our feedback on the manifest as it has related to the Cordova
> >> > reality.
> >> >
> >> > I really dislike:
> >> >
> >> > - scripts can only be loaded from inside the app package
> >> > - no inline scripts, no eval
> >> >
> >> > I really like the idea of killing the whitelist feature..
> >> >
> >> >
> >> > On Tue, Mar 19, 2013 at 7:06 AM, Michal Mocny <mmocny@chromium.org>
> >> wrote:
> >> > > Thanks for the highlights Fil.  Makes for easier reading!
> >> > >
> >> > >
> >> > > On Mon, Mar 18, 2013 at 5:21 PM, Filip Maj <fil@adobe.com> wrote:
> >> > >
> >> > >> Highlights w.r.t. Cordova:
> >> > >>
> >> > >> 1. Application manifest JSON (yay!) [1]:
> >> > >>
> >> > >> 2. There is an Application interface now in charge of handling:
> >> > >>   - pause/resume/launch/terminate events
> >> > >>   - readonly parameters such as install time, origin, parameters,
> >> update
> >> > >> state (downloading, installing), package size
> >> > >>   - methods such as exit, hide, uninstall, update (interesting!)
> >> > >>     - related to update, the spec calls for the update firing
> >> > >> asynchronously, reporting back progress events to the app. metaaaa
> >> > >> 3. App Management interface, which is deemed as a "privileged"
> >>API, to
> >> > get
> >> > >> events about the (un)installation of other applications.
> >> > >>
> >> > >> Interesting "security" conclusions [2]:
> >> > >>
> >> > >> - scripts can only be loaded from inside the app package
> >> > >> - no inline scripts, no eval
> >> > >> - "Media (audio and video) can still be loaded from anywhere;"
=>
> >>this
> >> > >> should inform our media APIs once we get to the audit and finally
> >> > >> determine that the whitelist has no effect on media. This already
> >> > applies
> >> > >> to images on the web.
> >> > >> - "Network connections can still be opened anywhere using
> >>data-centric
> >> > >> APIs like XMLHttpRequest or WebSocket." => implication here
is that
> >> the
> >> > >> whitelist is, really, useless (which has been my opinion always
:D
> >>)
> >> > >>
> >> > >> Related, I will be attending the SysApps Face to Face in madrid
[3]
> >> next
> >> > >> month. If anyone from the Cordova community has specific issues
> >>that
> >> > they
> >> > >> would like to see addressed, let me know!
> >> > >>
> >> > >> [1] http://runtime.sysapps.org/#application-manifest
> >> > >> [2] http://runtime.sysapps.org/#csp-policy
> >> > >> [3]
> >> http://www.w3.org/wiki/System_Applications:_1st_F2F_Meeting_Agenda
> >> > >>
> >> > >> On 3/18/13 9:03 AM, "Giorgio Natili" <g.natili@gnstudio.com>
> wrote:
> >> > >>
> >> > >> >It should be followed (I have had a quick look) but it depends
> >>what
> >> > does
> >> > >> >it means from a development point of view.
> >> > >> >I mean that there is already a roadmap and that this draft
should
> >> > impact a
> >> > >> >lot, so is up to the contributors trying to explain us how
much
> >> effort
> >> > is
> >> > >> >required.
> >> > >> >
> >> > >> >Giorgio
> >> > >> >
> >> > >> >On 3/18/13 8:02 AM, "Brian LeRoux" <b@brian.io> wrote:
> >> > >> >
> >> > >> >>Have a look: http://runtime.sysapps.org/
> >> > >> >>
> >> > >> >>What do we think?
> >> > >> >
> >> > >> >
> >> > >>
> >> > >>
> >> >
> >>
>
>

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