Title: Microsoft DirectX Files Viewer ActiveX Control Remote Buffer Overflow Vulnerability
Severity: HIGH
Description:
A vulnerability has been reported in the Microsoft DirectX Files Viewer ActiveX control, allegedly available for download as a sample application on a Microsoft hosted web page.
Reportedly, a buffer overflow vulnerability exists in the handling of the 'File' parameter by this ActiveX control. A malicious web page may reference the vulnerable control, and pass maliciously formatted data as the 'File' parameter to exploit this vulnerability.
Exploitation may result in the corruption of sensitive process memory, and lead to the execution of arbitrary code as the web browser process. Generally, malicious code will execute with user level privileges. Exploitation may result in the attacker gaining local access to the vulnerable system.
It may also be possible to exploit this vulnerability by including the ActiveX control in an Office document, which is then opened by the vulnerable user.
Reportedly, the vulnerable ActiveX control has been digitally signed by Microsoft. It may be possible for an attacker to provide a copy of the vulnerable control and force installation on users who automatically accept signed ActiveX controls.
Affected Products:
- Microsoft DirectX Files Viewer 0.0.0
References:
- Microsoft: Internet Explorer Components Gallery
- Microsoft: Technet Security
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