[owasp-intrinsic-security] Microsoft Web Sandbox

Arshan Dabirsiaghi arshan.dabirsiaghi at aspectsecurity.com
Thu Jan 29 08:27:29 EST 2009

I doubt a Silverlight solution can reliably be translated to JavaScript. There's a huge different between the capabilities of a Silverlight client plugin and traditional ECMA, and we should be fighting against proprietary solutions. And FTR, mashup security is the biggest picture, at least IMO, but AFAIK IANAL BBQ.

From: Robert Hansen [mailto:robert at sectheory.com]
Sent: Wed 1/28/2009 11:57 PM
To: Arshan Dabirsiaghi; me at alexsmolen.com; owasp-intrinsic-security at lists.owasp.org
Subject: RE: [owasp-intrinsic-security] Microsoft Web Sandbox

Not to speak on behalf of MS on this one but the whole point of this project is to test the practicality of transporting the logic into a future version of the browser.  I talked with the head developer for this project (also one of the head devs for the original versions of all the major scripting versions within IE - that's no coincidence).  He's a smart dude.  This isn't at all about Silverlight or mashups, there's a much bigger picture here - think content restrictions.

**sent from cell phone**

Robert Hansen, CISSP
CEO -- SecTheory LLC
Cell: (530) 521-2542
FAX: (512) 628-6299

-----Original Message-----
From: Arshan Dabirsiaghi <arshan.dabirsiaghi at aspectsecurity.com>
Sent: Wednesday, January 28, 2009 8:13 PM
To: me at alexsmolen.com <me at alexsmolen.com>; owasp-intrinsic-security at lists.owasp.org <owasp-intrinsic-security at lists.owasp.org>
Subject: Re: [owasp-intrinsic-security] Microsoft Web Sandbox

I think this is a cool but wrong approach. I think we need to build a sandbox policy for JavaScript and anything else is a hack, frankly. Something standardized by ECMA.
Does anyone think a Silverlight plugin is going to solve mashup security? Not to pooh pooh this, I'm sure this research is generating a lot of awesome information, but we need a comprehensive solution.


From: owasp-intrinsic-security-bounces at lists.owasp.org on behalf of Alex Smolen
Sent: Wed 1/28/2009 7:57 PM
To: owasp-intrinsic-security at lists.owasp.org
Subject: [owasp-intrinsic-security] Microsoft Web Sandbox

Did you all see this?


It's an attempt to add a security layer onto the web platform and support mashups. It looks like it's driven through Silverlight.


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