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Corsaire Security Advisory 2004-07-20.1

Corsaire Security Advisory 2004-07-20.1
Posted Nov 20, 2004
Authored by Stephen de Vries, Corsaire | Site penetration-testing.com

Corsaire Security Advisory - The aim of this document is to define a vulnerability in the Netopia Timbuktu 7.0.3 product for Mac OS X that suffers from a buffer overflow.

tags | advisory, overflow
systems | apple, osx
advisories | CVE-2004-0810
SHA-256 | cbc907a49668c0fcf9a73b904dee166db917a6d624962997421a44440286d2ae

Corsaire Security Advisory 2004-07-20.1

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-- Corsaire Security Advisory --

Title: Netopia Timbuktu remote buffer overflow issue
Date: 20.07.04
Application: Timbuktu v7.0.3
Environment: Mac OS X (10.1, 10.2, 10.3)
Author: Stephen de Vries [stephen.de.vries@corsaire.com]
Audience: General release
Reference: c040720-001


-- Scope --

The aim of this document is to define a vulnerability in the Timbuktu
product for Mac OS X, as supplied by Netopia [1], that allows a remote
attacker to crash the application and effectively deny service to
legitimate users.


-- History --

Discovered: 20.07.04
Vendor notified: 27.08.04
Document released: 19.11.04


-- Overview --

The Timbuktu software is shipped as a client/server application that
allows remote users to access the desktop of a host system. The server
component of this application is vulnerable to a remote buffer overflow
vulnerability that, when exploited, causes the server process to crash.


-- Analysis --

The server process runs with root privileges on the host Mac OS X and
listens for client connections on TCP port 407. By making a number of
concurrent connections to this port and repeatedly sending a particular
string of data, a memory buffer is overwritten and the server process
crashes.


-- Recommendations --

Upgrade to version v7.0.4 of the Timbuktu application.


-- CVE --

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2004-0810 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org), which standardises names for
security problems.


-- References --

[1] http://www.netopia.com


-- Revision --

a. Initial release.
b. Minor detail revision.


-- Distribution --

This security advisory may be freely distributed, provided that it
remains unaltered and in its original form.


-- Disclaimer --

The information contained within this advisory is supplied "as-is" with
no warranties or guarantees of fitness of use or otherwise. Corsaire
accepts no responsibility for any damage caused by the use or misuse of
this information.


-- About Corsaire --

Corsaire are a leading information security consultancy, founded in 1997
in Guildford, Surrey, UK. Corsaire bring innovation, integrity and
analytical rigour to every job, which means fast and dramatic security
performance improvements. Our services centre on the delivery of
information security planning, assessment, implementation, management
and vulnerability research.

A free guide to selecting a security assessment supplier is available at
http://www.penetration-testing.com


Copyright 2004 Corsaire Limited. All rights reserved.


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