Vulnerability Note VU#810772

Microsoft Agent fails to properly handle specially crafted .ACF files

Original Release date: 14 Nov 2006 | Last revised: 07 Feb 2007

Overview

Microsoft Agent fails to properly handle specially crafted .ACF files and may allow a remote attacker to execute arbitrary code.

Description

Microsoft Agent is a software technology that enables an enriched form of user interaction that can make using and learning to use a computer easier and more natural.

A vulnerability exists in the way that Microsoft Agent handles specially crafted .ACF files. Exploitation can occur when a remote attacker convinces the user to visit a specially crafted web site.

Microsoft states that the following systems are affected:

  • Microsoft Windows 2000 Service Pack 4
  • Microsoft Windows XP Service Pack 2
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows Server 2003 and Microsoft Windows Server 2003 Service Pack 1
  • Microsoft Windows Server 2003 for Itanium-based Systems and Microsoft Windows Server 2003 with SP1 for Itanium-based Systems
  • Microsoft Windows Server 2003 x64 Edition

Impact

This vulnerability may allow a remote attacker to execute arbitrary code with the privileges of the local user.

Solution

Apply an update

Microsoft has released updates in Microsoft Security Bulletin MS06-068 to address this issue.

Workarounds


Microsoft has provided the following workarounds, please reference MS06-068 for further information.

  • Temporarily prevent the Microsoft Agent ActiveX control from running in Internet Explorer
  • Configure Internet Explorer to prompt before running ActiveX Controls or disable ActiveX Controls in the Internet and Local intranet security zone
  • Set Internet and Local intranet security zone settings to “High” to prompt before running ActiveX Controls and Active Scripting in these zones

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-14 Nov 2006
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

Thanks to Microsoft Security for reporting this vulnerability in Microsoft Security Bulletin MS06-068.

This document was written by Katie Steiner.

Other Information

  • CVE IDs: CVE-2006-3445
  • Date Public: 14 Nov 2006
  • Date First Published: 14 Nov 2006
  • Date Last Updated: 07 Feb 2007
  • Severity Metric: 22.57
  • Document Revision: 14

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