full-disclosure - Re: Evilgrade 2.0 - the update explotation framework is back

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Date: Sun, 31 Oct 2010 13:09:27 +0100
From: Mario Vilas <mvilas@...il.com>
To: Valdis.Kletnieks@...edu
Cc: full-disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Evilgrade 2.0 - the update explotation
 framework is back

Just signing the update packages prevents this attack, so it's not that hard
to fix.

On Sat, Oct 30, 2010 at 5:02 PM, <Valdis.Kletnieks@...edu> wrote:

> On Sat, 30 Oct 2010 04:43:14 +0800, Jacky Jack said:
> > It's now a time for vendors to re-consider their updating scheme.
>
> And do what differently, exactly?
>
> OK, so it's *possible* to fake out the iTunes update process.  But which is
> easier
> and more productive:
>
> A) Laying in wait for some random to think "Wow, I should update iTunes"
> and
> hijack the process.
>
> B) Send out a few hundred thousand spam with a '
> From:update@...le-itunes-support.com<From%3Aupdate@...le-itunes-support.com>
> '
> with a link to a site you control and feed the the sheep some malware.
>
> Evilgrade looks like a nice tool to have if you're doing a pen test or a
> targeted attack and can somehow get the victim to do an update (possibly
> social
> engineering), but for any software vendor feeding software updates to Joe
> Sixpack this threat model is *so* far down the list it isn't funny.  Simply
> compare the number of boxes pwned by (A) and (B) - how many people have
> gotten
> pwned because somebody hijacked their update from Symantec or wherever,
> compared to the number pwned because they got a popup that said "Your
> computer
> is infected, click here to fix it"?
>
> Remember - just because a new tool useful for an attacker shows up, does
> *not*
> mean it's a game changer for the industry at large.
>
>
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