full-disclosure - 2x 0day Microsoft Windows Excel

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Message-ID: <43C6D7A3.4060308@heapoverflow.com>
Date: Thu Jan 12 22:27:10 2006
From: ad at heapoverflow.com (ad@...poverflow.com)
Subject: 2x 0day Microsoft Windows Excel

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I was joking you know , this hole is a fake but shhh ;)

Amit Sharma wrote:
> ad, don't you think it would be a good idea if you either post your
> PoC with complete details otherwise do not post it. I mean from the
> "excel_like_hell.swf" demo, I do not see anything that one would
> infer.
>
> I can see that a xls file is created and on opening it (as per the
> demo), it makes a registry entry. Now how true is this? If you are
> posting no more info here they how is it going to help us otherwise
> what was the intent of the post?
>
> - Amit
>
>
> */"ad@...poverflow.com" <ad@...poverflow.com>/* wrote:
>
> I have got many questions about the severity of the bug , you can
> show a demo yourself here:
>
> http://heapoverflow.com/excelol/excel_like_hell.swf
>
> ms will fixe this issue soon I'm sure, for me , job done, bye :>
>
> ad@...poverflow.com wrote:
>> after many hours working on excel I have found a critical excel
>> bug exploitable. This is not a stack bof nor a heap bof , a bug
>> extremely hard to find and trigger , but it conduct excel to
>> execute any arbitrary codes while opening a malicious .xls file.
>
>> note: the bug isn't related to both excel dos that I have already
>>  published but shows similiar to a null pointer bug at a first
>> look. much infos won't be disclosed publicly or privately and
>> this will be transmitted to ms before the spyware loosers catch
>> it :)
>
>>>> I have said so this is only null pointer bugs but the way I
>>>> trigger the bug might be modded for a remote code execution
>>>> who know , I'm not a guru and maybe did an error triggering
>>>> the flaw who knows :) but I bet many are already reasearching
>>>> on this hehe, happy job!
>
>
>
>>>> Let's go on the fast publishing :) I wont bother to message
>>>> microsoft about this because they wont patch it for sure
>>>> according that they can't patch fully exploitable bugs in a
>>>> decent time, they do not patch IE dos
>>>> (http://heapoverflow.com/IEcrash.htm), so no way to bother
>>>> them, we should let them sleep a bit shhh ;)
>>>>
>>>> Bugs 1 and Bugs 2 are quite similiar but NOT, both are null
>>>> pointer bugs . In bug1 you should mod a grafic's pointer to
>>>> point to a bad area, and in bug 2 you should null out the
>>>> size of the page name.
>>>>
>>>>
>>>> attached are the 2 pocs, nor here are direct links
>>>>
>>>>
>>>> http://heapoverflow.com/excelol/bug1.xls
>>>>
>>>> http://heapoverflow.com/excelol/bug2.xls
>>>>
>>>>
>>>>
>>>>
>>>> Credits:
>>>>
>>>> AD [at] heapoverflow.com

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