Re: GMail, Google Groups XSS Vulnerability

[Steven Rakick <stevenrakick () yahoo com>]

So what's the deal here? I haven't seen any mention of
this XSS vulnerability anywhere else... but I just
tested it and it worked. 

Isn't this a big deal for Google? It seems to me the
cookies accessible through GMail are pretty important,
not just for GMail but for their other services too.
Or am I missing something? 

On 4/11/06, Darren Bounds <dbounds () gmail com> wrote:
> GMail, Google Groups XSS Vulnerability
> April 11, 2006
>
> GMail and Google Groups are vulnerable to an cross
site scripting
> (XSS) attack due to their reliance on
Content-Disposition to provide
> separation between the HTML file download and
application scopes. The
> result is the ability for an attacker to send / post
a malicious HTML
> file attachments which,  when read using Internet
Explorer, will
> execute within the scope of the Google application
allowing the theft
> of sensitive user content.
>
> A PoC is available on Google Groups at the following
URL:
>
http://groups.google.com/group/Content-Disposition/browse_thread/thread/925106682eb32b2b
> This vulnerability is directly related to my posting
earlier this week
> entitled "Microsoft Internet Explorer
Content-Disposition HTML File
> Handling Flaw" which can be found at the following
URL:
>
http://lists.grok.org.uk/pipermail/full-disclosure/2006-April/044991.html
> Google has been notified.
>
>
> --
>
> Thank you,
> Darren Bounds


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