Trend Micro Anti-Rootkit Common Module fails to properly restrict access to the "\\.\TmComm" DOS device interface

Overview

A vulnerability exists in Trend Micro’s Anti-Rootkit Common Module that may allow a local attacker to gain elevated privileges.

Description

Trend Micro AntiVirus is a virus scanner for Microsoft Windows and Linux. The Trend Micro Anti-Rootkit Common Module is included with Trend Micro security suites and other anti-virus products.

The IOCTL handlers for the DOS device interface included with Trend Micro’s Anti-Rootkit Common Module fails to properly validate permissions. Local users are not properly restricted from accessing fucntionality designed for privileged use on the \\.\TmComm DOS device interface.

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Impact

A local attacker may be able to execute arbitrary code or overwrite arbitrary memory in the kernel.

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Solution

Apply an update
Trend Micro has released an update to address this issue.

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Vendor Information

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Updated: February 08, 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

Refer to Trend Micro solution 1034432.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23282240 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=469&gt;
• http://esupport.trendmicro.com/support/viewxml.do?ContentID=EN-1034432&id=EN-1034432
• <http://securitytracker.com/alerts/2007/Feb/1017606.html&gt;
• <http://securitytracker.com/alerts/2007/Feb/1017605.html&gt;
• <http://securitytracker.com/alerts/2007/Feb/1017604.html&gt;
• <http://www.securityfocus.com/bid/22448&gt;

Acknowledgements

This issue is addressed in Trend Micro solution 1034432. Trend Micro credits Ruben Santamarta working with the iDefense Contributor Program for reporting this issue.

This document was written by Chris Taschner.

Other Information

CVE IDs:	CVE-2007-0856
Severity Metric:	8.25 Date Public: