Microsoft Excel Data Validation Record Parsing Buffer Overflow Vulnerability

Bugtraq ID:	47256
Class:	Unknown
CVE:	CVE-2011-0105
Remote:	Yes
Local:	No
Published:	Apr 12 2011 12:00AM
Updated:	Nov 07 2011 05:53AM
Credit:	Aniway, working with TippingPoint's Zero Day Initiative.
Vulnerable:	Microsoft Open XML File Format Converter for Mac 0 Microsoft Excel 2008 for Mac 0 Microsoft Excel 2004 for Mac 0 Microsoft Excel 2002 SP3 + Microsoft Office XP SP3 Microsoft Excel 2002 SP2 + Microsoft Office XP SP2 - Microsoft Windows 2000 Professional SP3 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 - Microsoft Windows XP Home SP1 - Microsoft Windows XP Home - Microsoft Windows XP Professional SP1 - Microsoft Windows XP Professional Microsoft Excel 2002 SP1 + Microsoft Office XP SP1 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP2 - Microsoft Windows NT Terminal Server 4.0 SP1 - Microsoft Windows NT Terminal Server 4.0 - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 - Microsoft Windows XP Home - Microsoft Windows XP Professional Microsoft Excel 2002 + Microsoft Office XP - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 95 SR2 - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT 4.0 SP5 - Microsoft Windows NT 4.0 SP4 - Microsoft Windows NT 4.0 SP3 - Microsoft Windows NT 4.0 SP2 - Microsoft Windows NT 4.0 SP1 - Microsoft Windows NT 4.0
Not Vulnerable:

Microsoft Excel Data Validation Record Parsing Buffer Overflow Vulnerability

Microsoft Excel is prone to a buffer-overflow vulnerability.

Attackers can exploit this issue by enticing an unsuspecting user to open a specially crafted Excel file.

Successful exploits can allow attackers to execute arbitrary code with the privileges of the user running the application. Failed exploit attempts will result in a denial-of-service condition.

Microsoft Excel Data Validation Record Parsing Buffer Overflow Vulnerability

A working commercial exploit is available through VUPEN Security - Exploit and PoCs Service. This exploit is not otherwise publicly available or known to be circulating in the wild.

The following exploit is available:

• /data/vulnerabilities/exploits/47256.rb

Microsoft Excel Data Validation Record Parsing Buffer Overflow Vulnerability

Solution:
The vendor has released an advisory and updates. Please see the references for details.


Microsoft Open XML File Format Converter for Mac 0

• Microsoft OpenXMLConverter119.dmg
  http://www.microsoft.com/downloads/details.aspx?FamilyID=0c323a12-6385 -4666-ad39-a9516a8eda14

Microsoft Excel 2002 SP3

• Microsoft officexp-KB2466169-FullFile-ENU.exe
  http://www.microsoft.com/downloads/details.aspx?familyid=db2c5cfe-588c -4646-b86a-3fb8248f7af4

Microsoft Excel Data Validation Record Parsing Buffer Overflow Vulnerability

References:

• Microsoft Excel Homepage (Microsoft )
  
• ZDI-11-121: Microsoft Office XP Data Validation Record Parsing Remote Code Execu (TippingPoint Zero Day Initiative)
  
• VUPEN Security Research - Microsoft Office Excel Real Time Data Stack Overwrite ("VUPEN Security Research" )
  
• Microsoft Security Bulletin MS11-021 (Microsoft)