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CERT Coordination Center


Wang/Kodak Image Thumbnail ActiveX Control

Vulnerability Note VU#24839

Original Release Date: 2000-10-31 | Last Revised: 2000-10-31

Overview

Description

The Image Thumbnail control is incorrectly marked safe for scripting. This control is sometimes identified as from "Kodak" and other times as from "Wang". The Image Thumbnail control is one of several controls used to provide image editting services through a web site. Because the control is marked safe-for-scripting, an attacker may be able to script this control and exploit the vulnerability when you visit a web page.

This control is implemented in the file imgthumb.ocx and has a ClassID of {E1A6B8A0-3603-101C-AC6E-040224009C02}.

This vulnerability is closely related to these vulnerabilities:

    • VU#26924 Wang/Kodak Image Admin ActiveX Control
    • VU#41408 Wang/Kodak Image Scan ActiveX Control
    • VU#23412 Wang/Kodak Image Edit/Annotation ActiveX Control
    • VU#24839 Wang/Kodak Image Thumbnail ActiveX Control
    • VU#9162 Wang/Kodak Image Edit ActiveX Control
    Each of these controls appears to have a similar problem.

    Impact

    An attacker can use the control to create files on a system viewing a malicious web page. By carefully constructing the files and specfying which files to overwrite, an attacker can cause arbitrary commands to be execued. The attacker can also overwrite existing files, causing the system to fail.

    Solution

    Apply a patch

    Apply the patch provided by Microsoft in Security Bulletin MS99-037. This patch sets the kill bit which prevents the control from being loaded by Internet Explorer.

    Disable "Script ActiveX controls marked safe for scripting"

    In your Internet Explorer security settings, set this option to "disable" or "prompt".

    Vendor Information

    24839
    Expand all

    Microsoft

    Updated:  October 31, 2000

    Status

      Vulnerable

    Vendor Statement

    No statement is currently available from the vendor regarding this vulnerability.

    Vendor Information

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

    Addendum

    Microsoft published Security Bulletin MS99-037 addressing this issue.

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


    CVSS Metrics

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

    References

    Credit

    Thanks to Richard Smith for reporting this vulnerability to the CERT/CC.

    This document was written by Cory F Cohen.

    Other Information

    CVE IDs: None
    Severity Metric: 7.59
    Date Public: 1999-09-10
    Date First Published: 2000-10-31
    Date Last Updated: 2000-10-31 20:46 UTC
    Document Revision: 15

    Sponsored by the Department of Homeland Security Office of Cybersecurity and Communications.