NetGear wireless driver fails to properly process specially-crafted 802.11 management frames

Overview

A buffer overflow vulnerability exists in the Netgear WG311ND5.SYS wireless driver. Successful exploitation of this vulnerability may allow an attacker to execute arbitrary code, or cause a denial-of-service condition.

Description

The WG311ND5.SYS driver is a wireless (802.11g) device driver produced by Netgear that ships with the WG311v1 wireless adapter.

A heap buffer overflow vulnerability has been reported in the WG311ND5.SYS driver. This overflow occurs because the driver does not properly process the SSID information element part of 802.11 management frames. An attacker within radio range may be able to trigger the overflow by sending a specially-crafted 802.11 management frame to a vulnerable system. Since 802.11b and 802.11g management frames are not encrypted or authenticated, 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 WG311ND5.SYS driver may also be vulnerable.

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Impact

An attacker may be able to execute arbitrary code, or cause a denial-of-service condition.

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Solution

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

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Disable wireless adapters

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

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Vendor Information

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Netgear, Inc. Affected

Updated: November 24, 2006

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.

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://projects.info-pull.com/mokb/MOKB-22-11-2006.html&gt;
• <http://secunia.com/advisories/23051/&gt;
• <http://standards.ieee.org/getieee802/download/802.11-1999.pdf&gt;

Acknowledgements

This issue was reported by Laurent Butti, H D Moore and LMH on the Month of Kernel Bugs website.

This document was written by Ryan Giobbi.

Other Information

CVE IDs:	CVE-2006-6125
Severity Metric:	0.50 Date Public: