InterActual Player SyscheckObject ActiveX controls contain stack buffer overflows
Vulnerability Note VU#922969
Original Release Date: 2007-03-21 | Last Revised: 2007-03-26
Overview
InterActual Player provides multiple ActiveX controls that are vulnerable to buffer overflows. This can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.
Description
InterActual Player is a video DVD playing application for Windows systems. InterActual Player was formerly known as InterActual PCFriendly. The InterActual Player software provides several ActiveX controls. ActiveX controls provided by IASystemInfo.dll are vulnerable to stack buffer overflows in the ApplicationType property. Note that some versions of InterActual WinDVD provide the vulnerable ActiveX controls.
Impact
By convincing a user to view a specially crafted HTML document (e.g., a web page, an HTML email message, or an HTML email attachment), an attacker may be able to execute arbitrary code with the privileges of the user. The attacker could also cause the web browser to crash.
Solution
We are currently unaware of a practical solution to this problem. Until a solution is identified, consider implementing the following workarounds.
Disable the InterActual SyscheckObject ActiveX control in Internet Explorer
The vulnerable ActiveX controls can be disabled in Internet Explorer by setting the kill bit for the following CLSIDs:
{B727C210-2022-11D4-B2C6-0050DA1BD906} {B727C212-2022-11D4-B2C6-0050DA1BD906} {B727C217-2022-11D4-B2C6-0050DA1BD906} {B727C219-2022-11D4-B2C6-0050DA1BD906} {B727C21B-2022-11D4-B2C6-0050DA1BD906} {B727C21D-2022-11D4-B2C6-0050DA1BD906} {B727C220-2022-11D4-B2C6-0050DA1BD906} {B727C222-2022-11D4-B2C6-0050DA1BD906} 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:
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.
This vulnerability was reported by Will Dormann of the CERT/CC. This vulnerability was also independently discovered and publicly disclosed by Carsten Eiram of Secunia Research before a coordinated release date could be reached.