Microsoft Office Web Components ActiveX control HTML code execution

ms-officeweb-html-code-execution (51452) The risk level is classified as HighHigh Risk

Description:

The Microsoft Office Web Components Spreadsheet ActiveX control could allow a remote attacker to execute arbitrary code on the system, caused by an error related to the handling of an HTML script. By persuading a victim to visit a malicious Web page, a remote attacker could exploit this vulnerability to corrupt memory and execute arbitrary code on the system with the privileges of the victim.

*CVSS:

Base Score: 9.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 6.9
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS09-043. See References.

References:

  • IBM Internet Security Systems Protection Alert: Microsoft Office Web Components Spreadsheet ActiveX Control RCE.
  • Microsoft Security Advisory (973472): Vulnerability in Microsoft Office Web Components Control Could Allow Remote Code Execution.
  • ZDI-09-054: Microsoft Office OWC10.Spreadsheet ActiveX msDataSourceObject() Heap Corruption Vulnerability.
  • BID-35642: Microsoft Office Web Components ActiveX Control 'msDataSourceObject()' Code Execution Vulnerability
  • CVE-2009-1136: 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.
  • SA35800: Microsoft Office Web Components Code Execution Vulnerability
  • US-CERT VU#545228: Microsoft Office Web Components Spreadsheet ActiveX control vulnerability

Platforms Affected:

  • Microsoft ISA Server 2004 SP3 Enterprise
  • Microsoft ISA Server 2004 SP3 Standard
  • Microsoft ISA Server 2006 SP1 Enterprise
  • Microsoft ISA Server 2006 Supportability Update
  • Microsoft ISA Server 2006 SP1 Standard
  • Microsoft Office 2003 SP3
  • Microsoft Office XP SP3
  • Microsoft Office Small Business Accounting 2006
  • Microsoft Office Web Components 2003 SP3
  • Microsoft Office Web Components 2003 SP1
  • Microsoft Office Web Components XP SP3

Reported:

Jul 13, 2009

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