Microsoft Excel File Header Bug Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1019200 |
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SecurityTracker URL: http://securitytracker.com/id/1019200
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CVE Reference:
CVE-2008-0081
(Links to External Site)
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Updated: Mar 20 2008
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Original Entry Date: Jan 16 2008
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Impact:
Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 2000, 2002, 2003 SP2 and prior service packs; 2004 for Mac
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Description:
A vulnerability was reported in Microsoft Excel. A remote user can cause arbitrary code to be executed on the target user's system.
A remote user can create an Excel file with a specially crafted header that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system. The code will run with the privileges of the target user.
Excel Viewer 2003 is also affected.
Microsoft Office Excel 2007, Microsoft Excel 2008 for Mac, and Microsoft Office Excel 2003 Service Pack 3 are not affected.
The vulnerability is being actively exploited in a targeted manner.
On March 10, 2008, US-CERT warned that a trojan that exploits this vulnerability is circulating:
http://www.us-cert.gov/current/index.html#trojan_exploiting_microsoft_excel_vulnerability
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Impact:
A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
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Solution:
The vendor has issued the following fixes (on March 11, 2008):
Microsoft Office 2000 Service Pack 3, Excel 2000 Service Pack 3:
http://www.microsoft.com/downloads/details.aspx?FamilyId=f7f90c30-1bfd-406b-a77f-612443e30185
Microsoft Office XP Service Pack 3, Excel 2002 Service Pack 3:
http://www.microsoft.com/downloads/details.aspx?FamilyId=907f96d5-d1e9-4471-b41c-3ac811e63038
Microsoft Office 2003 Service Pack 2, Excel 2003 Service Pack 2:
http://www.microsoft.com/downloads/details.aspx?FamilyId=296e5f2c-f594-41c8-a20a-3e4c40ae3948
2007 Microsoft Office System, Excel 2007:
http://www.microsoft.com/downloads/details.aspx?FamilyId=e7634cb5-9531-4284-9554-4168fc488e0c
Microsoft Office Excel Viewer 2003:
http://www.microsoft.com/downloads/details.aspx?FamilyId=280bb2ac-b21a-46b5-8751-5a50fbebf107
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats:
http://www.microsoft.com/downloads/details.aspx?FamilyId=e9251d71-9098-4125-ae91-7d4c83ea58ad
Microsoft Office 2004 for Mac:
http://www.microsoft.com/downloads/details.aspx?FamilyId=95DCEB37-B35F-46DB-B280-DB0F3B298AA9
Microsoft Office 2008 for Mac:
http://www.microsoft.com/downloads/details.aspx?FamilyId=8FE8C32A-6D7A-482B-97C6-42562F089EE4
A restart is not required.
On March 19, 2008, Microsoft re-released MS08-014 for Microsoft Office Excel 2003 SP2 and SP3 only to correct a calculation error that had no security impact. Instructions regarding the re-issue are available at:
http://support.microsoft.com/kb/950340
The Microsoft advisory is available at:
http://www.microsoft.com/technet/security/bulletin/ms08-014.mspx
The original Microsoft advisory is available at:
http://www.microsoft.com/technet/security/advisory/947563.mspx
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Vendor URL: www.microsoft.com/technet/security/bulletin/ms08-014.mspx (Links to External Site)
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Cause:
Access control error
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Underlying OS:
UNIX (OS X), Windows (Any)
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Message History:
None.
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Source Message Contents
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Date: Tue, 15 Jan 2008 23:54:32 -0500
Subject: Vulnerability in Microsoft Excel Could Allow Remote Code Execution
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http://www.microsoft.com/technet/security/advisory/947563.mspx
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