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Extremely critical

Microsoft Office Web Components Multiple Vulnerabilities

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Description


Some vulnerabilities have been reported in Microsoft Office Web Components, which can be exploited by malicious people to compromise a user's system.

1) An error in the OWC10.Spreadsheet ActiveX control can be exploited to corrupt memory via specially crafted parameters passed to the "msDataSourceObject()" method.

NOTE: According to Microsoft, the vulnerability is currently being actively exploited.

2) An error when loading and unloading the OWC10 ActiveX control can be exploited to corrupt memory.

3) An error in the OWC10.Spreadsheet ActiveX control related to the "BorderAround()" method can be exploited to corrupt heap memory by accessing certain methods in a specific order.

4) A boundary error in the Office Web Components ActiveX control can be exploited to cause a stack-based buffer overflow by passing an overly long parameter used for referencing an Excel file to load.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Reported as a 0-day.
* Peter Vreugdenhil, reported via ZDI
* The vendor also credits Haifei Li of Fortinetís FortiGuard Global Security Research Team.
2, 3) Peter Vreugdenhil, reported via ZDI
4) Sean Larsson, iDefense Labs.

Original Advisory:
Microsoft:
http://www.microsoft.com/technet/security/advisory/973472.mspx
http://blogs.technet.com/msrc/archive/2009/07/13/microsoft-security-advisory-973472-released.aspx
http://blogs.technet.com/srd/archive/2009/07/13/more-information-about-the-office-web-components-activex-vulnerability.aspx

MS09-043 (KB957638, KB947320, KB947319, KB947318, KB947826, KB971388, KB969172, KB968377):
http://www.microsoft.com/technet/security/Bulletin/MS09-043.mspx

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-09-054/
http://www.zerodayinitiative.com/advisories/ZDI-09-055/
http://www.zerodayinitiative.com/advisories/ZDI-09-056/

iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=819

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Office Web Components Multiple Vulnerabilities

User Message
altonius RE: Microsoft Office Web Components Multiple Vulnerabilities
Member 1st Mar, 2014 15:00
Score: 4
Posts: 2
User Since: 24th Aug 2012
System Score: N/A
Location: AU
Last edited on 1st Mar, 2014 15:00
There is a rare scenario where KB947318 won't install correctly with SCCM 2007 due to problems with incorrect supersedence in the Microsoft Update Catalog

More information can be found here: https://altonblom.com/s34e04/
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