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Re: Microsoft Office Excel 2010 memory corruption
From: kaveh ghaemmaghami <kavehghaemmaghami () googlemail com>
Date: Mon, 29 Oct 2012 21:42:36 +0330

thank you Jeff
please tell me this is not exploitable
http://www.exploit-db.com/exploits/22237/
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
all crashes which i gave i know is not that easy to exploit i just
wanted to Proof how easy is to crash MS
and i wanted to know MS opinion about any flaws
so i am not going to give any crashes free as far as i can sell  it to
ZDI which i know is exploitable or i can exploit it for proof of
concept
And i will leave other crashes to exploit dev expert and crash
analyzer to exploit it and enjoying  flaws
thank you every one for share
Best Regards

On Mon, Oct 29, 2012 at 5:47 AM, kaveh ghaemmaghami
<kavehghaemmaghami () googlemail com> wrote:
Hello list

Dear Peter and others please take a look @ it

Best Regards
Kaveh Ghaemmaghami

Title     :  Microsoft Office Excel 2010 memory corruption
Version   :  Microsoft Office professional Plus 2010
Date      :  2012-10-27
Vendor    :  http://office.microsoft.com
Impact    :  Med/High
Contact   :  coolkaveh [at] rocketmail.com
Twitter   :  @coolkaveh
tested    :  XP SP3 ENG
###############################################################################
Bug :
----
memory corruption during the handling of the xls files a
context-dependent attacker
can execute arbitrary code  (need investigate )
----
################################################################################
(b4c.1350): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00000584
ebx=00135070
ecx=00001000
edx=0000105f
esi=06a80800
edi=00000040
eip=301ce0d0
esp=001302f0
ebp=00131d6c iopl=0         nv up ei pl zr na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010246
*** ERROR: Symbol file could not be found.  Defaulted to export
symbols for Excel.exe -
Excel!Ordinal40+0x1ce0d0:
301ce0d0 668b5008        mov     dx,word ptr [eax+8]      ds:0023:0000058c=????
################################################################################
Proof of concept included.
http://www36.zippyshare.com/v/48422905/file.html

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