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Message-ID: <26563eca0604130643v683d2fc8l6d92ca6fa73d0977@mail.gmail.com> Date: Thu Apr 13 14:43:17 2006 From: dbounds at gmail.com (Darren Bounds) Subject: Re: GMail, Google Groups XSS Vulnerability Google Groups is now zipping HTML file attachments to force seperation. This can be seen here: http://groups.google.com/group/Content-Disposition/browse_thread/thread/925106682eb32b2b GMail is still vulnerable. On 4/11/06, Darren Bounds <dbounds@...il.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 > -- Thank you, Darren Bounds
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