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Microsoft DirectX Media 6.0 Live Picture Corporation DirectTransform FlashPix ActiveX control buffer overflow

Vulnerability Note VU#466601

Original Release Date: 2007-08-12 | Last Revised: 2007-08-13

Overview

The Live Picture Corporation DirectTransform FlashPix ActiveX control contains a buffer overflow, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

Description

The Microsoft DirectX Media 6.0 SDK includes an ActiveX control that is produced by Live Picture Corporation. This control, which is provided by DXTLIPI.DLL, is known as FlashPix. The FlashPix ActiveX control contains a buffer overflow vulnerability in the SourceUrl() property. Because the FlashPix ActiveX control is marked "Safe for Scripting," Internet Explorer can be used as an attack vector for this vulnerability.

Note that software other than the Microsoft DirectX Media 6.0 SDK may include the vulnerable FlashPix ActiveX control. Exploit code for this vulnerability is publicly available.

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.

Solution

We are currently unaware of a practical solution to this problem. Please consider the following workarounds


Disable the FlashPix ActiveX control in Internet Explorer

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

{201EA564-A6F6-11D1-811D-00C04FB6BD36}
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\{201EA564-A6F6-11D1-811D-00C04FB6BD36}]
"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. 

Vendor Information

466601
 
Affected   Unknown   Unaffected

Live Picture Corporation

Updated:  August 12, 2007

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

Please disable the vulnerable ActiveX control.

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

Microsoft Corporation

Updated:  August 12, 2007

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

Please disable the vulnerable ActiveX control.

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

This vulnerability was publicly disclosed by Krystian Kloskowski.

This document was written by Will Dormann.

Other Information

CVE IDs: None
Severity Metric: 12.91
Date Public: 2007-08-10
Date First Published: 2007-08-12
Date Last Updated: 2007-08-13 12:26 UTC
Document Revision: 7

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