Digital Armaments advisory is 05.02.2006
http://www.digitalarmaments.com/2006290674551938.html

I. Background

The SpeedStream Wireless DSL/Cable Router is usually adopted for home and small business solutions. Together with an existing DSL or cable modem connection, this affordable, easy to use connection sharing solution brings the freedom of high-speed, wireless broadband connectivity to home and SOHO networks. Its comprehensive functionality provides vital firewall protection, IP sharing capabilities, and fundamental routing features that support popular protocols like NetMeeting and VPN.
For further information or detail about the software you can refer to the vendor's homepage:

http://subscriber.communications.siemens.com/


II. Problem Description

Speedstream routers have UPnP/1.0 support. An attacker can access protected files and bypass the password protection without login using the UPnP part of the tree.


III. Detection

This problem has been detected on latest version of Siemens Speedstrem Router. It has been tested on the Speedstream 2624.


IV. Impact analysis

Successful exploitation allow an attacker to bypass the password protection. It also allow an attacker to access protected files without login.


V. Solution

First notification 05.02.2006.
Second notification 05.20.2006.
No answer from the vendor.


VI. Credit

Jaime Blasco - jaime.blasco@eazel.es is credited with this discovery.

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VII. Legal Notices

Copyright © 2006 Digital Armaments LLC.

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Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.