Trend Micro OfficeScan Management Console ActiveX control format string vulnerability

Overview

The Trend Micro OfficeScan Management Console ActiveX control, AtxConsole, contains a format string vulnerability. This vulnerability may be exploited by an attacker to execute arbitrary code, or create a denial-of-service condition.

Description

Trend Micro’s OfficeScan product includes a web-based management console. The management console uses an ActiveX control, which in turn interacts with CGI applications on the OfficeScan server. This ActiveX control, which has a CLSID of {8990AFAD-D352-42AC-A72F-A660BBF6E209}, contains a format string vulnerability.

Note that any system that has used the vulnerable control in the past may be vulnerable.

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Impact

By convincing a user to view a specially crafted HTML document (e.g., a web page or an HTML email message or attachment), an attacker may be able to execute arbitrary code with the privileges of the user. The attacker could also cause Internet Explorer (or the program using the WebBrowser control) to crash.

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Solution

Apply an update
Trend Micro has addressed this issue in OfficeScan 7.3 Patch 1.

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Disable the OfficeScan Management Console ActiveX control

The AtxConsole ActiveX control can be disabled by setting the kill bit for the following CLSID:
{8990AFAD-D352-42AC-A72F-A660BBF6E209}
This may prevent the client from using the Management Console’s web interface. More information about how to set the kill bit is available in Microsoft Support Document 240797.

Disable ActiveX

Disabling ActiveX controls in the Internet Zone (or any zone used by an attacker) appears to prevent exploitation of this vulnerability. Instructions for disabling ActiveX in the Internet Zone can be found in the “Securing Your Web Browser” document.

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Vendor Information

788860

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Updated: October 12, 2006

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Please apply OfficeScan 7.3 Patch 1.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23788860 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.layereddefense.com/TREND01OCT.html&gt;
• <http://secunia.com/advisories/22224/&gt;
• <http://www.trendmicro.com/en/products/desktop/osce/evaluate/overview.htm&gt;
• <http://www.cert.org/tech_tips/securing_browser/&gt;
• <http://secunia.com/advisories/22156/&gt;

Acknowledgements

This report is based on information from Deral Heiland of Layered Defense.

This document was written by Ryan Giobbi.

Other Information

CVE IDs:	CVE-2006-5157
Severity Metric:	3.85 Date Public: