full-disclosure - Re: DLL hijacking with Autorun on a USB drive

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Date: Fri, 27 Aug 2010 01:18:48 -0400
From: Dan Kaminsky <dan@...para.com>
To: paul.szabo@...ney.edu.au
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: DLL hijacking with Autorun on a USB drive

On Fri, Aug 27, 2010 at 1:06 AM, <paul.szabo@...ney.edu.au> wrote:

> Dan Kaminsky <dan@...para.com> wrote:
>
> >> Badly setup desktops: do not "hide extensions", maybe view details
> >> (or list) not icons.
> >
> > All that matters is defaults, and icons are way more powerful ...
>
> Those defaults are wrong, change them. Anyway, icons are shown
> with "view details".
>

I think you mean application types are shown with "view details".  The
problem is, there's a couple dozen application types that are all code
execution equivalent by design.  Do you know all of them?  Why should a
user?

>
> > The web browser and the email client are not designed to launch
> > arbitrary code. The desktop ... is.
>
> This attack may happen through the browser (UNC paths or somesuch).
> Any talk about USB sticks or desktops is bogus.
>
>
There's no path between IE and a UNC window that doesn't either security
prompt or raise an unadorned Explorer window to a remote share.  I could see
an argument that the latter should prompt, given that it's a (by definition)
code execution context.  But that's about it.

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