Well, as far as I can see it is actually impossible to delete your identica
account, unless I'm missing something.  Even so there should definitely be a
confirmation step before deleting an account anyways.
----
Gavin Schulz
Working on a stealth start-up


On Mon, Feb 16, 2009 at 8:49 PM, Mr. Meitar Moscovitz <[email protected]>wrote:

> On Feb 17, 2009, at 2:42 AM, Gavin Schulz wrote:
>
> I would be interested to see a proof of concept of an attack that would
> delete user's accounts because it seems pretty impossible to me.
>
>
> Instead of stealing a click over the send button, you steal clicks
> elsewhere, such as over Twitters "delete my account" link at the bottom of
> their http://twitter.com/account/settings page.
>
> "Impossible" is a very dangerous word to use in a security context, and in
> any event I don't even want "harmless" settings changed without my
> knowledge.
>
> Cheers,
> -Meitar Moscovitz
> Personal: http://maymay.net
> Professional: http://MeitarMoscovitz.com
>
> On Sun, Feb 15, 2009 at 11:34 PM, Mr. Meitar Moscovitz 
> <[email protected]>wrote:
>
>> On Feb 14, 2009, at 8:31 AM, Evan Prodromou wrote:
>>
>>  Gavin Schulz wrote:
>>>
>>>> As far as I know, it is also.  There is really no way to guard against
>>>> the hack because its all about alignment.  Although I use Chrome and it
>>>> doesn't work.  As far as I know it's just a clever hack to post a status
>>>> message.  No real security loophole.
>>>>
>>>
>>> Could we use frame-breaker JS to keep from being stuck in an iframe?
>>>
>>> -Evan
>>>
>>
>> I think we absolutely should.
>>
>> No, *this* particular attack was not especially destructive, but just
>> because this wasn't doesn't mean a future clickjacking attack wouldn't be.
>> You could pretty easily create a clickjacking attack that would delete users
>> accounts. Nobody wants this.
>>
>> Frame-busting would be helpful but should be acknowledged as a mitigation,
>> rather than a prevention technique. In all cases, the ultimate
>> responsibility for something like this rests in the hands of users, since
>> clickjacking isn't something that the Identica team (or any web developer)
>> can prevent 100% of the time.
>>
>> For what it's worth, encouraging your friends who use Twitter OR Identica
>> to use NoScript with Firefox[0] or Clickjane.css[1] with Safari/Opera/other
>> browsers would probably be a good idea right about now.
>>
>> Cheers,
>> -Meitar Moscovitz
>> Personal: http://maymay.net
>> Professional: http://MeitarMoscovitz.com
>>
>> EXTERNAL REFERENCES:
>>
>> [0] http://noscript.net/
>> [1]
>> http://maymay.net/blog/2008/12/29/clickjanecss-a-css-user-style-sheet-to-help-detect-and-avoid-clickjacking-attacks/
>>
>
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