Vulnerability Note VU#180513

Microsoft Video ActiveX control stack buffer overflow

Overview

The Microsoft Video ActiveX control contains a stack buffer overflow vulnerability, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

Microsoft Windows comes with an ActiveX component called "ActiveX control for streaming video," which is provided by msvidctl.dll. This component provides a number of Class Identifiers (CLSIDs) that are marked as Safe for Scripting and Safe for Initialization, which means that they can be used by Internet Explorer. The ActiveX controls provided by msvidctl.dll fail to properly handle file input, which can result in stack memory corruption. This can allow the Structured Exception Handler (SEH) to be overwritten, thus allowing subversion of the program execution flow.

II. 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.

III. Solution

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

Disable the vulnerable ActiveX controls



Microsoft Security Advisory (972890) explains how to disable the 45 ActiveX controls provided by msvidctl.dll to mitigate this vulnerability. A Microsoft Fix it application is provided in Microsoft Knowledgebase article 972890 to disable these controls.



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.

Systems Affected

No Information Available

References

http://www.cert.org/tech_tips/securing_browser/

http://www.microsoft.com/technet/security/advisory/972890.mspx

http://support.microsoft.com/kb/972890

http://isc.sans.org/diary.html?storyid=6733

http://www.csis.dk/dk/nyheder/nyheder.asp?tekstID=799

Credit

This document was written by Will Dormann.

Other Information

Date Public:	2009-07-04
Date First Published:	2009-07-06
Date Last Updated:	2009-07-06
CERT Advisory:
CVE-ID(s):	CVE-2008-0015
NVD-ID(s):	CVE-2008-0015
US-CERT Technical Alerts:
Metric:	65.31
Document Revision:	9

Vulnerability Note VU#180513

Microsoft Video ActiveX control stack buffer overflow

Overview

The Microsoft Video ActiveX control contains a stack buffer overflow vulnerability, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

Microsoft Windows comes with an ActiveX component called "ActiveX control for streaming video," which is provided by msvidctl.dll. This component provides a number of Class Identifiers (CLSIDs) that are marked as Safe for Scripting and Safe for Initialization, which means that they can be used by Internet Explorer. The ActiveX controls provided by msvidctl.dll fail to properly handle file input, which can result in stack memory corruption. This can allow the Structured Exception Handler (SEH) to be overwritten, thus allowing subversion of the program execution flow.

II. 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.

III. Solution

Microsoft has released an update to address this issue. See Microsoft Security Bulletin MS09-032 for more information.

Disable the vulnerable ActiveX controls



Microsoft Security Advisory (972890) explains how to disable the 45 ActiveX controls provided by msvidctl.dll to mitigate this vulnerability. A Microsoft Fix it application is provided in Microsoft Knowledgebase article 972890 to disable these controls.



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.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Vulnerable		2009-07-15

References

http://www.cert.org/tech_tips/securing_browser/

http://www.microsoft.com/technet/security/advisory/972890.mspx

http://support.microsoft.com/kb/972890

http://dvlabs.tippingpoint.com/blog/2009/07/09/microsoft-video-activex-control-0day-technical-details

http://addxorrol.blogspot.com/2009/07/poking-around-msvidctldll.html

http://isc.sans.org/diary.html?storyid=6733

http://www.csis.dk/dk/nyheder/nyheder.asp?tekstID=799

http://blogs.technet.com/srd/archive/2009/07/06/new-vulnerability-in-mpeg2tunerequest-activex-control-object-in-msvidctl-dll.aspx

http://www.us-cert.gov/cas/techalerts/TA09-187A.html

http://www.us-cert.gov/cas/techalerts/TA09-195A.html

http://www.microsoft.com/technet/security/bulletin/ms09-032.mspx

Credit

This document was written by Will Dormann.

Other Information

Date Public:	2009-07-04
Date First Published:	2009-07-06
Date Last Updated:	2009-07-15
CERT Advisory:
CVE-ID(s):	CVE-2008-0015
NVD-ID(s):	CVE-2008-0015
US-CERT Technical Alerts:	TA09-187A; TA09-195A
Metric:	65.31
Document Revision:	24

Vulnerability Note VU#180513

Microsoft Video ActiveX control stack buffer overflow

Overview

The Microsoft Video ActiveX control contains a stack buffer overflow vulnerability, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

Microsoft Windows comes with an ActiveX component called "ActiveX control for streaming video," which is provided by msvidctl.dll. This component provides a number of Class Identifiers (CLSIDs) that are marked as Safe for Scripting and Safe for Initialization, which means that they can be used by Internet Explorer. The ActiveX controls provided by msvidctl.dll fail to properly handle file input, which can result in stack memory corruption. This can allow the Structured Exception Handler (SEH) to be overwritten, thus allowing subversion of the program execution flow.

II. 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.

III. Solution

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

Disable the vulnerable ActiveX controls



Microsoft Security Advisory (972890) explains how to disable the 45 ActiveX controls provided by msvidctl.dll to mitigate this vulnerability. A Microsoft Fix it application is provided in Microsoft Knowledgebase article 972890 to disable these controls.



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.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Vulnerable		2009-07-07

References

http://www.cert.org/tech_tips/securing_browser/

http://www.microsoft.com/technet/security/advisory/972890.mspx

http://support.microsoft.com/kb/972890

http://dvlabs.tippingpoint.com/blog/2009/07/09/microsoft-video-activex-control-0day-technical-details

http://addxorrol.blogspot.com/2009/07/poking-around-msvidctldll.html

http://isc.sans.org/diary.html?storyid=6733

http://www.csis.dk/dk/nyheder/nyheder.asp?tekstID=799

http://blogs.technet.com/srd/archive/2009/07/06/new-vulnerability-in-mpeg2tunerequest-activex-control-object-in-msvidctl-dll.aspx

Credit

This document was written by Will Dormann.

Other Information

Date Public:	2009-07-04
Date First Published:	2009-07-06
Date Last Updated:	2009-07-10
CERT Advisory:
CVE-ID(s):	CVE-2008-0015
NVD-ID(s):	CVE-2008-0015
US-CERT Technical Alerts:	TA09-187A
Metric:	65.31
Document Revision:	19

Vulnerability Note VU#180513

Microsoft Video ActiveX control stack buffer overflow

Overview

The Microsoft Video ActiveX control contains a stack buffer overflow vulnerability, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

Microsoft Windows comes with an ActiveX component called "ActiveX control for streaming video," which is provided by msvidctl.dll. This component provides a number of Class Identifiers (CLSIDs) that are marked as Safe for Scripting and Safe for Initialization, which means that they can be used by Internet Explorer. The ActiveX controls provided by msvidctl.dll fail to properly handle file input, which can result in stack memory corruption. This can allow the Structured Exception Handler (SEH) to be overwritten, thus allowing subversion of the program execution flow.

II. 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.

III. Solution

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

Disable the vulnerable ActiveX controls



Microsoft Security Advisory (972890) explains how to disable the 45 ActiveX controls provided by msvidctl.dll to mitigate this vulnerability. A Microsoft Fix it application is provided in Microsoft Knowledgebase article 972890 to disable these controls.



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.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Vulnerable		2009-07-07

References

http://www.cert.org/tech_tips/securing_browser/

http://www.microsoft.com/technet/security/advisory/972890.mspx

http://support.microsoft.com/kb/972890

http://isc.sans.org/diary.html?storyid=6733

http://www.csis.dk/dk/nyheder/nyheder.asp?tekstID=799

http://blogs.technet.com/srd/archive/2009/07/06/new-vulnerability-in-mpeg2tunerequest-activex-control-object-in-msvidctl-dll.aspx

Credit

This document was written by Will Dormann.

Other Information

Date Public:	2009-07-04
Date First Published:	2009-07-06
Date Last Updated:	2009-07-07
CERT Advisory:
CVE-ID(s):	CVE-2008-0015
NVD-ID(s):	CVE-2008-0015
US-CERT Technical Alerts:	TA09-187A
Metric:	65.31
Document Revision:	14

Vulnerability Note VU#789121

Microsoft Whale Intelligent Application Gateway Whale Client Components ActiveX control stack buffer overflows

Overview

The Microsoft Whale Intelligent Application Gateway Whale Client Components ActiveX control contains multiple stack buffer overflows, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

I. Description

Whale Communications Intelligent Application Gateway is an application that provides SSL VPN functionality. The Whale Client Components, which is provided by the file WhlMgr.dll, contains stack buffer overflow vulnerabilities in the CheckForUpdates() and UpdateComponents() methods. Note that Whale Communications is a subsidiary of Microsoft.

II. 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 the web browser to crash.

III. Solution

Apply an update

This issue is addressed in Service Pack 1 for both Whale Communications Intelligent Application Gateway (IAG) 3.6 and Microsoft Intelligent Application Gateway 2007.

Disable the Whale Client Components ActiveX control in Internet Explorer



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

{8D9563A9-8D5F-459B-87F2-BA842255CB9A}

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\{8D9563A9-8D5F-459B-87F2-BA842255CB9A}]
"Compatibility Flags"=dword:00000400

Please note that setting the kill bit will break the Intelligent Application Gateway functionality.

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.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Vulnerable	2006-12-14	2009-05-27

References

http://www.cert.org/tech_tips/securing_browser/#Internet_Explorer

http://technet.microsoft.com/en-us/library/dd282918.aspx

http://support.microsoft.com/kb/240797

Credit

This vulnerability was reported by Will Dormann of CERT/CC.

This document was written by Will Dormann.

Other Information

Date Public:	2009-04-15
Date First Published:	2009-04-15
Date Last Updated:	2009-05-27
CERT Advisory:
CVE-ID(s):	CVE-2007-2238
NVD-ID(s):	CVE-2007-2238
US-CERT Technical Alerts:
Metric:	3.41
Document Revision:	16