Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email email@example.com
From: Kristian Erik Hermansen (kristian.hermansengmail.com)
Date: Tue Dec 11 2007 - 20:16:22 CST
On Dec 11, 2007 3:01 PM, Aaron Katz <atkatzgmail.com> wrote:
> My strong suspicion is that the original poster simply created a
> the cookie. This would work if the session cookie is restricted to
> google.com, which would let any web server in, or content served from
> the google.com domain (or any subdomain).
> mail.google.com reinforces this suspicion.
> If my suspicion is correct, then google did two things. First, google
> appears to allow individuals to create personal domain names in
> google.com, and to place arbitrary content in those domains. This
> first thing probalby allowed the original poster to place the
> Second, google apparantly did not restrict the gmail cookie to
> personal system at somewhere.google.com to access the cookie.
> Of course, I only did a cursory glance at the source of the webpage,
> so I may be wrong :) But, we can be reasonably sure it's not
> exploiting a problem in the browser, since the issue appears to be
> cross browser.
Well, let me just say that NoScript will not save you here in my
example. Try this to see how to really mess with your brain...
* Open Firefox 2.x (delete all cookies/cached objects if you like, etc)
* Check an email in Google
* Visit my PoC code page in a new tab
* Click on the Google tab and try to read an email
* Something went wrong...
* Log back into Google
* Browse around your email, or not, doesn't matter
* Merely click on the tab for my PoC webpage
* Something goes wrong again...
Just clicking a tab in Firefox can mess with your Google account?
Details will be released this Friday and will also include an exploit
for Yahoo as well. Fair warning...
Kristian Erik Hermansen
"I have no special talent. I am only passionately curious."
Full-Disclosure - We believe in it.
Hosted and sponsored by Secunia - http://secunia.com/