Vulnerability Note VU#293051

Avaya Argent Office uses weak SNMP authentication mechanism

Overview

The Avaya Argent Office does not properly enforce SNMP community string values, resulting in a weakened access control mechanism.

I. Description

The Avaya Argent Office does not properly enforce SNMP community string values. It will accept a null string (i.e. "") as a valid community string and will also accept partial strings that match the correct community string. The acceptance of partial strings allows an attacker to conduct brute force password attacks against the agent. According to reports, this vulnerability is only exploitable via an internal interface.

II. Impact

This vulnerability reduces the effectiveness of the access control provided by an SNMP community string.

III. Solution

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

Systems Affected

Vendor	Status	Date Notified	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:	2001-08-07
Date First Published:	2003-10-30
Date Last Updated:	2003-10-30
CERT Advisory:
CVE-ID(s):
NVD-ID(s):
US-CERT Technical Alerts:
Metric:	0.98
Document Revision:	10

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