Authentium Command Antivirus odapi.dll multiple ActiveX buffer overflows

Overview

Authentium Command Antivirus contains multiple ActiveX vulnerabilities, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.

Description

Authentium Command Antivirus provides multiple ActiveX controls. Many of the ActiveX controls provided by odapi.dll are vulnerable to buffer overflows. Note that Command Antivirus components may come with software bundles from ISPs or other sources.

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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.

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Solution

This issue is resolved in Command Antivirus 4.93.8. Please check with your software vendor for updates. If no updates are available from your vendor, please consider the following workarounds

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Disable the vulnerable Command Antivirus ActiveX controls in Internet Explorer

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

{103CAE29-DB09-4F77-812B-FFC0C3BC91A1} {1F22F6F1-FDC5-4C6D-9335-B6E31315FB1B}
{253A6409-6917-48EF-9CC7-9CB79FDA4169}
{50F3C8D1-E5E8-463D-A6E5-5A5966359538}
{567408B9-78B1-44DD-9CC2-7AC136C916C5}
{67EC8D27-C3CD-447E-9315-46A04DDB6C35}
{6D855303-A902-4608-8668-C177F80AB429}
{8EDDD996-E47F-4C59-8505-9FC570612FB6}
{A1962F85-324C-4751-83ED-27426F9F6E36}
{FED9DA10-9C9E-4AEB-B5B2-51C7ADC7A4DA}
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\{103CAE29-DB09-4F77-812B-FFC0C3BC91A1}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{1F22F6F1-FDC5-4C6D-9335-B6E31315FB1B}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{253A6409-6917-48EF-9CC7-9CB79FDA4169}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{50F3C8D1-E5E8-463D-A6E5-5A5966359538}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{567408B9-78B1-44DD-9CC2-7AC136C916C5}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{67EC8D27-C3CD-447E-9315-46A04DDB6C35}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{6D855303-A902-4608-8668-C177F80AB429}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{8EDDD996-E47F-4C59-8505-9FC570612FB6}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{A1962F85-324C-4751-83ED-27426F9F6E36}]
"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FED9DA10-9C9E-4AEB-B5B2-51C7ADC7A4DA}]
"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.

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Vendor Information

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Authentium, Inc. __ Affected

Notified: April 16, 2007 Updated: May 30, 2007

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

Please update to Command Antivirus version 4.93.8 or later, or disable the vulnerable ActiveX controls.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23563401 Feedback>).

BellSouth __ Affected

Updated: May 30, 2007

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

Please update to Command Antivirus version 4.93.8 or later, or disable the vulnerable ActiveX controls.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23563401 Feedback>).

Earthlink __ Affected

Updated: May 30, 2007

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

Please update to Command Antivirus version 4.93.8 or later, or disable the vulnerable ActiveX controls.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23563401 Feedback>).

PeoplePC, Inc. __ Affected

Updated: May 30, 2007

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

Please update to Command Antivirus version 4.93.8 or later, or disable the vulnerable ActiveX controls.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23563401 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
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Environmental

References

• <http://support.microsoft.com/kb/240797&gt;
• <http://secunia.com/advisories/25500/&gt;

Acknowledgements

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

This document was written by Will Dormann.

Other Information

CVE IDs:	CVE-2007-2917
Severity Metric:	4.59 Date Public: