Vulnerability Note VU#788860

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.

I. 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.

II. 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.

III. Solution

Apply an update

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

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.

Systems Affected

Vendor	Status	Date Updated
Trend Micro	Vulnerable	12-Oct-2006

References

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

Credit

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

This document was written by Ryan Giobbi.

Other Information

Date Public	10/02/2006
Date First Published	10/11/2006 03:12:55 PM
Date Last Updated	11/08/2006
CERT Advisory
CVE-ID(s)	CVE-2006-5157
NVD-ID(s)	CVE-2006-5157
US-CERT Technical Alerts
Metric	3.85
Document Revision	45

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Produced 2006 by US-CERT, a government organization
Disclaimers and copyright information

Get Adobe Reader