Date: Sun, 16 Mar 2014 19:37:51 -0400
From: "Exibar" <exibar@...lair.com>
To: "'Thomas Williams'" <thomas@...illiams.me.uk>,
 "'Mario Vilas'" <mvilas@...il.com>
Cc: full-disclosure@...ts.grok.org.uk, 'M Kirschbaum' <pr0ix@...oo.co.uk>
Subject: Re: [SPAM] [Bayesian][bayesTestMode] Re:
	Google	vulnerabilities with PoC

LOL. boy oh boy you would have HATED the N3td3v years then...   

 

I'm sure your delete key works doesn't it?

 

From: Full-Disclosure [mailto:full-disclosure-bounces@...ts.grok.org.uk] On
Behalf Of Thomas Williams
Sent: Saturday, March 15, 2014 10:44 AM
To: Mario Vilas
Cc: full-disclosure@...ts.grok.org.uk; M Kirschbaum
Subject: Re: [Full-disclosure] [SPAM] [Bayesian][bayesTestMode] Re: Google
vulnerabilities with PoC

 

I signed onto this mailing list as an interested person in security - not to
see everyone moan. We will all have differences in opinion and we should all
respect that. This goes for everyone and I feel I speak for a lot of people
here, everyone needs to grow up, and shut up.

 

 

 

Email scanned and verified safe.  

 

On 15 Mar 2014, at 13:43, Mario Vilas <mvilas@...il.com> wrote:





Sockpuppet much?

 

On Sat, Mar 15, 2014 at 2:35 PM, M Kirschbaum <pr0ix@...oo.co.uk> wrote:

Gynvael Coldwind,

 

What Alfred has reiterated is that this is a security vulnerability
irrelevantly of whether it qualifies for credit. 

 

It is an unusual one, but still a security vulnerability. Anyone who says
otherwise is blind, has little or no experience in hands on security, or
either has a different agenda.

 

The obvious here is that Google dismissed it as a non-security issue which I
find rather sad and somewhat ridiculous. 

 

Even if we asked Andrew Tanenbaum about ,I suspect his answers wouldn't be
much different. 

 

Rgds,

 

On Saturday, 15 March 2014, 12:45, Gynvael Coldwind <gynvael@...dwind.pl>
wrote:

Hey,

 

I think the discussion digressed a little from the topic. Let's try to steer
it back on it. 

 

What would make this a security vulnerability is one of the three standard
outcomes:

 

- information leak - i.e. leaking sensitive information that you normally do
not have access to

- remote code execution - in this case it would be:

-- XSS - i.e. executing attacker provided JS/etc code in another user's
browser, in the context *of a sensitive, non-sandboxed* domain (e.g.
youtube.com <http://youtube.com/> )

-- server-side code execution - i.e. executing attacker provided code on the
youtube servers

- denial of service - I think we all agree this bug doesn't increase the
chance of a DoS; since you upload files that fail to be processed (so the
CPU-consuming re-encoding is never run) I would argue that this decreases
the chance of DoS if anything

 

Which leaves us with the aforementioned RCE.

 

I think we all agree that if Mr. Lemonias presents a PoC that uses the
functionality he discovered to, either:

(A) display a standard XSS alert(document.domain) in a sensitive domain
(i.e. *.youtube.com <http://youtube.com/>  or *.google.com
<http://google.com/> , etc) for a different (test) user

OR

(B) execute code to fetch the standard /etc/passwd file from the youtube
server and send it to him,

then we will be convinced that this is vulnerability and will be satisfied
by the presented proof.

 

I think that further discussion without this proof is not leading anywhere.

 

 

One more note - in the discussion I noticed some arguments were tried to be
justified or backed by saying "I am this this and that, and have this many
years of experience", e.g. (the first one I could find):

 

"have worked for Lumension as a security consultant for more than a decade."

 

Please note, that neither experience, nor job title, proves exploitability
of a *potential* bug. Working exploits do.

 

 

That's it from me. I'm looking forward to seeing the RCE exploits (be it
client or server side).

 

Kind regards,

Gynvael Coldwind

 





 

-- 
"There's a reason we separate military and the police: one fights the enemy
of the state, the other serves and protects the people. When the military
becomes both, then the enemies of the state tend to become the people."

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