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List: bugtraq
Subject: Re: Re : [Firefox Bug 302187] New: Shared section vulnerability when opening microsoft office docume
From: Cesar <cesarc56 () yahoo ! com>
Date: 2005-07-30 19:56:29
Message-ID: 20050730195629.69981.qmail () web54406 ! mail ! yahoo ! com
[Download RAW message or body]
It's a security issue, i found it and reported this to
MS long time ago when i started to research shared
sections bugs, MS will fix the issue in some future. I
don't know why MS said to you that it's not a security
issue.
Cesar.
--- sylvain.roger@solucom.fr wrote:
> As I got some questions about this I think I need to
> precise it.
> I can say for sure now : It is not a firefox
> vulnerability but Microsoft Office vulnerability.
> Firefox is just here as an example.
> The vulnerability is that when a winword.exe process
> is created from another application (like
> firefox.exe) it creates a shared section called
> \BaseNameObjects\Mso97SharedDgXXXXXXXX which has
> write rights for everyone. This allows to write
> arbitrary data on the shared section resulting in a
> denial of service of all opened Microsoft Office
> applications. It may be necessary sometimes to
> reboot the machine in order to use again the Office
> applications.
> Microsoft just answers it is a technical issue and
> not a security issue
>
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