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CERT Coordination Center

Avaya Argent Office uses weak authentication for TFTP-based administrative control

Vulnerability Note VU#742115

Original Release Date: 2003-10-30 | Last Revised: 2003-10-30

Overview

The Avaya Argent Office contains a weak authentication mechanism for administrative access.

Description

The Avaya Argent Office uses a TFTP-based mechanism to accept requests for administrative functions. By requesting "files" from the device via its internal interface, administrators can trigger functions such as restarting the device. This mechanism does require a password, but the algorithm used to encrypt the password is both predictable and reversible. Therefore, an attacker who can listen to traffic on the same network segment as the device's administrative interface can easily obtain the password and either reuse it or reverse it for use elsewhere.

Impact

This vulnerability allows attackers on the same shared network segment to perform unauthorized administrative functions.

Solution

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

Vendor Information

742115
 

Avaya Unknown

Notified:  April 03, 2002 Updated: October 30, 2003

Status

Unknown

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

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

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References

Acknowledgements

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

CVE IDs: None
Severity Metric: 0.79
Date Public: 2001-08-07
Date First Published: 2003-10-30
Date Last Updated: 2003-10-30 21:51 UTC
Document Revision: 8

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