Vulnerability Note VU#869641

Research In Motion TeamOn Import Object ActiveX control buffer overflow

Overview

The Research In Motion TeamOn Import Object ActiveX control contains a buffer overflow, which could allow an attacker to execute arbitrary code on a vulnerable system.

I. Description

The Research In Motion TeamOn Import Object is an ActiveX control, which is provided by the file TOImport.dll. The SetLanguage() method of this control contains a buffer overflow vulnerability.

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

This vulnerability is addressed by Microsoft Security Bulletin MS07-027. This update sets the kill bit for the vulnerable control. More information is available in the BlackBerry document KB13142.

Disable the TeamOn Import Object ActiveX control in Internet Explorer

The vulnerable TeamOn Import Object ActiveX control can be disabled in Internet Explorer by setting the kill bit for the following CLSID:

{1D95A7C7-3282-4DB7-9A48-7C39CE152A19}

More information about how to set the kill bit is available in Microsoft Support Document 240797. Alternatively, the following text can be saved as a .REG file and imported to set the kill bit for this control:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{1D95A7C7-3282-4DB7-9A48-7C39CE152A19}]

"Compatibility Flags"=dword:00000400

Disable ActiveX

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

Systems Affected

Vendor	Status	Date Notified	Date Updated
Research in Motion (RIM)	Vulnerable	9-May-2007

References

http://www.cert.org/tech_tips/securing_browser/#Internet_Explorer
http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB13142
http://www.microsoft.com/technet/security/Bulletin/MS07-027.mspx
http://support.microsoft.com/kb/240797
http://secunia.com/advisories/25218/

Credit

This vulnerability was reported by Will Dormann of CERT/CC

This document was written by Will Dormann.

Other Information

Date Public:	2007-05-08
Date First Published:	2007-05-08
Date Last Updated:	2007-05-10
CERT Advisory:
CVE-ID(s):	CVE-2007-0323
NVD-ID(s):	CVE-2007-0323
US-CERT Technical Alerts:
Metric:	3.04
Document Revision:	12

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Produced 2007 by US-CERT, a government organization
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