Description
The Microsoft Office Web Components Spreadsheet ActiveX control (aka OWC10 or OWC11), as distributed in Office XP SP3 and Office 2003 SP3, Office XP Web Components SP3, Office 2003 Web Components SP3, Office 2003 Web Components SP1 for the 2007 Microsoft Office System, Internet Security and Acceleration (ISA) Server 2004 SP3 and 2006 Gold and SP1, and Office Small Business Accounting 2006, when used in Internet Explorer, allows remote attackers to execute arbitrary code via a crafted call to the msDataSourceObject method, as exploited in the wild in July and August 2009, aka "Office Web Components HTML Script Vulnerability."
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
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Microsoft OWC Spreadsheet msDataSourceObject Memory Corruption
exploit/windows/browser/ms09_043_owc_msdso
Exploit-DB 2
- Microsoft Office Web Components (OWC) Spreadsheet - msDataSourceObject Memory Corruption (MS09-043) (Metasploit) EDB-16537 · remote · Jul 20, 2010 · verified
- Microsoft Office Web Components (OWC) Spreadsheet - ActiveX Buffer Overflow (PoC) EDB-9163 · dos · Jul 16, 2009 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- oval:org.mitre.oval:def:5809 vdb-entry signature
- http://isc.sans.org/diary.html?storyid=6778
- TA09-223A third-party-advisory
- http://www.microsoft.com/technet/security/advisory/973472.mspx
- http://blogs.technet.com/srd/archive/2009/07/13/more-information-about-the-office-web-components-activex-vulnerability.aspx
- http://blogs.technet.com/msrc/archive/2009/07/13/microsoft-security-advisory-973472-released.aspx
- http://xeye.us/blog/2009/07/one-0day/
- http://trac.metasploit.com/browser/framework3/trunk/modules/exploits/windows/browser/owc_spreadsheet_msdso.rb
- MS09-043 vendor-advisory