Re: [Full-disclosure] 4 Questions: Latest IE vulnerability, Firefox vs IE security, User vs Admin risk profile, and browsers coded in 100% Managed Verifiable code

[pilonmntry at yahoo.com (Pilon Mntry)]

> of creating a
> full-featured
> browser, from scratch, with usability as good as IE
> and Firefox
> strikes me as a fairly tricky project. 

I agree.

> What about
> using the
> facilities already provided by the OS to enforce the
> sandbox? 

But then will it be possible to prevent buffer
overflows, still running on unmanaged code?

Very nice points by Dinis, esp. the one about the
"advantages" of using our boxes with less privileges
(for internet browsing).

-pilon

--- Brian Eaton <eaton.lists at gmail.com> wrote:

> On 3/25/06, Dinis Cruz <dinis at ddplus.net> wrote:
> > 4) Finally, isn't the solution for the creation of
> secure and
> > trustworthy Internet Browsing environments the
> development of browsers
> > written in 100% managed and verifiable code, which
> execute on a secure
> > and very restricted Partially Trusted
> Environments? (under .Net, Mono or
> > Java). This way, the risk of buffer overflows will
> be very limited, and
> > when logic or authorization vulnerabilities are
> discovered in this
> > 'Partially Trusted IE' the 'Secure Partially
> Trusted environment' will
> > limit what the malicious code (i.e. the exploit)
> can do.
>
> I am less than enthusiastic about most of the
> desktop java
> applications I use.  They are, for the most part,
> sluggish, memory
> gobbling beasts, prone to disintegration if I look
> at them cross-eyed
> or click the mouse too frequently.
>
> Usability problems with java applications are not
> necessarily due to
> managed code, of course, but the idea of creating a
> full-featured
> browser, from scratch, with usability as good as IE
> and Firefox
> strikes me as a fairly tricky project.  What about
> using the
> facilities already provided by the OS to enforce the
> sandbox?  Rather
> than scrapping the existing codebases, start running
> them with
> restricted rights.  Use mandatory access control
> systems to make sure
> the browser doesn't overstep its bounds.
>
> Regards,
> Brian
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