Vulnerability Note VU#22919

SystemWizard Registry Object ActiveX Control lacks authentication

Overview

I. Description

The SystemWizard "Registry Object" ActiveX Control may allow attackers to modify the registry on systems where the control is installed. This control was shipped on HP Pavilion computers running Windows 98, as part of a diagnostic application named "SystemWizard" produced by SystemSoft. This control can be used to read and write registry keys without authentication. Because the control is marked safe-for-scripting, this vulnerability can be exploited via a web page if the user has the vulnerable control installed.

This control is implemented in the file reg.dll and has a ClassID of {9C3558B8-4175-11D0-926E-00AA00B91D12}. The control can also be referenced as IISSample.RegistryAccess.

II. Impact

Attacker can read and write registry keys.

III. Solution

Apply a patch

SystemSoft has a patch which appears to address this issue:

http://www.systemsoft.com/l-2/l-3/support-systemwizard.htm

Systems Affected

Vendor	Status	Date Updated
SystemSoft	Vulnerable	2-Nov-2000

References

http://www.tiac.net/users/smiths/acctroj/hp.htm
http://www.systemsoft.com/l-2/l-3/products-systemwizard.htm
http://www.systemsoft.com/l-2/l-3/support-systemwizard.htm

Credit

Thanks to Richard Smith for making the CERT/CC aware of this vulnerability.

This document was written by Cory F Cohen.

Other Information

Date Public	07/21/1999
Date First Published	11/02/2000 06:30:32 PM
Date Last Updated	11/02/2000
CERT Advisory
CVE Name
Metric	16.58
Document Revision	5

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