full-disclosure - Re: Google / GMail bug, all accounts vulnerable

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Date: Fri, 7 Dec 2007 21:41:56 -0800 (PST)
From: Joseph Hick <leet16y@...oo.com>
To: Kristian Erik Hermansen <kristian.hermansen@...il.com>,
	Aaron Katz <atkatz@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: Google / GMail bug, all accounts vulnerable

could someone please explain how this PoC works? I wonder why simply loading an image logs me out

Kristian Erik Hermansen <kristian.hermansen@...il.com> wrote: On Dec 7, 2007 7:40 AM, Aaron Katz  wrote:
> Could you please explain the vulnerability?  When I test, and I submit
> a correct response to the CAPTCHA, I'm presented with knowledge based
> authentication.

The bug, unless Google fixed it already, will have an affect on your
GMail account, but has nothing to do with CAPTCHAs.  Here is an
illustration....

* You are happily browsing some emails in GMail.
* You then visit any website which utilizes my PoC. (one @
http://www.kristian-hermansen.com)
* You try to use your GMail account, but something went wrong.
* You ask yourself what happened...
-- 
Kristian Erik Hermansen
"I have no special talent. I am only passionately curious."

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