Vulnerability Note VU#445753

NetGear wireless driver fails to properly process certain 802.11 management frames

Overview

A buffer overflow vulnerability has been reported in the Netgear WG111v2.SYS wireless driver. Successful exploitation of this vulnerability may allow an attacker to execute arbitrary code, or cause a denial-of-service condition.

I. Description

The WG111v2.SYS driver is a wireless (802.11) device driver produced by Netgear.

A stack buffer overflow vulnerability has been reported in the WG111v2.SYS driver. An attacker may be able to trigger the overflow by sending a malformed beacon request frame to a vulnerable system. Since 802.11b and 802.11g management frames are not encrypted, using wireless encryption (WEP/WPA) does not mitigate this vulnerability.

Note that Linux or Unix systems that use NDISWrapper or similar technologies to load the WG111v2.SYS driver may also be vulnerable.

II. Impact

A remote, unauthenticated attacker may be able to execute arbitrary code, or cause a denial-of-service condition on a vulnerable system.

III. Solution

We are currently unaware of a practical solution to this problem.

Disable wireless adapters

Disabling wireless adapters may reduce the chances of this vulnerability being exploited.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Netgear, Inc.	Vulnerable	17-Nov-2006

References

http://projects.info-pull.com/mokb/MOKB-16-11-2006.html
http://secunia.com/advisories/22962/

Credit

This issue was publicly reported by H.D. Moore on The Month of Kernel Bugs Website.

This document was written by Ryan Giobbi.

Other Information

Date Public:	2006-11-16
Date First Published:	2006-11-17
Date Last Updated:	2006-11-17
CERT Advisory:
CVE-ID(s):
NVD-ID(s):
US-CERT Technical Alerts:
Metric:	3.48
Document Revision:	21

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Produced 2006 by US-CERT, a government organization
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