Vulnerability Note VU#981915

Avaya Argent Office vulnerable to denial of service via malformed DNS packets

Overview

The Avaya Argent Office reboots in response to certain malformed DNS packets, resulting in a denial of service condition.

I. Description

The Avaya Argent Office reboots when a packet with an empty payload is sent to UDP port 53 (DNS) on its internal interface. By sending repeated packets to this interface, it is possible to cause the device to reboot continuously, resulting in a denial of service condition.

II. Impact

This vulnerability allows attackers on the same shared network segment to reboot affected devices, thus creating a denial of service condition.

III. Solution

The CERT/CC is currently unaware of a practical solution to this problem.

Systems Affected

Vendor	Status	Date Updated
Avaya	Unknown	30-Oct-2003

References

Credit

This vulnerability was reported to the Bugtraq mailing list on 08/07/2001 by Jacek Lipkowski.

This document was written by Jeffrey P. Lanza.

Other Information

Date Public	08/07/2001
Date First Published	10/30/2003 05:48:06 PM
Date Last Updated	10/30/2003
CERT Advisory
CVE Name
Metric	0.30
Document Revision	6

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