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Re: Google Accounts Security Vulnerability
From: Alex Buie <abuie () kwdservices com>
Date: Sun, 13 May 2012 12:27:25 -0400

This reminds me of my bank, where the password can only be 12 characters
long and only alphanumeric, but they compensate with "security questions",
"Web pin" and SMS auth, where I would be perfectly content (and save time)
sec-wise if they would just let me use my normal >24 character password
scheme, and maybe the pin on unfamiliar computers.

Oh, and their mobile app? Only requires my 4 number debit pin and no
username. I'd be much more worried about losing my phone that's preauthed
than someone scanning my brain and discovering the password.
On May 12, 2012 7:59 AM, "Michael J. Gray" <mgray () emitcode com> wrote:

Effective since May 1, 2012.****

Products Affected: All Google account based services****

** **

Upon attempting to log-in to my Google account while away from home, I was
presented with a message that required me to confirm various details about
my account in order to ensure I was a legitimate user and not just someone
who came across my username and password. Unable to remember what my phone
number from 2004 was, I looked for a way around it.****

The questions presented to me were:****

    Complete the email address: a******g () gmail com****

    Complete the phone number: (425) 4**-***7****

** **

Since this was presented to me, I was certain I had my username and
password correct.****

From there, I simply went to check my email via IMAP at the new location.*
***

I was immediately granted access to my email inboxes with no trouble.****

** **

From there, I attempted to log-in to my Google account with the same
username and password.****

To my surprise, I was not presented with any questions to confirm my
identity.****

This completes the steps required to bypass this account hijacking
counter-measure.****

** **

This just goes to show that even the largest corporations that employ
teams of security experts, can also overlook very simple issues.****

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

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