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Re: Linksys WAG200G - Information disclosure (fwd)

  • From: Peter Dambier
  • Date: Tue Mar 27 17:11:29 2007

Karin and me have just completed a little test, in case you own such a router.

On the IASON homepage

scroll down, look for the picture of the two pirates and klick

Port 916 Backdoor

the file


contains Makefile and sources for "test916 <router name or ip>" and
in case your router does not answer port 916 udp a little server
"server-916". The server must be run as root. It will terminate
after the first test from the client, telling you at least the
query from the client and the name and ip-addresses.

Peter and Karin Dambier

Robert Boyle wrote:

At 05:48 PM 3/20/2007, you wrote:

I wonder what their security process is for other types of routers?

Try [email protected]


---------- Forwarded message ----------
Date: 20 Mar 2007 20:31:01 -0000
From: [email protected]
To: [email protected]
Subject: Linksys WAG200G - Information disclosure

Hi there,

About 2 months ago I bought a wireless ADSL modem/router, the Linksys WAG200G. Just did some basic security checks and to my utter surprise the device responded with about all sensitive information it knows:

* Product model
* Password webinterface
* Username PPPoA
* Password PPPoA
* WPA Passphrase

I notified Linksys, got some regular support questions and was then assured my concerns would be forwarded to the product engineers. Some weeks later I tried again, same message, silence since then.

My firmware version is 1.01.01, latest available for this type.

'Technical' info:
Sent a packet to UDP port 916.
Answer contains mentioned information.
(LAN interface and Wireless interface)

Daniël Niggebrugge

Tellurian Networks - Global Hosting Solutions Since 1995 | 888-TELLURIAN | 973-300-9211
"Well done is better than well said." - Benjamin Frankli

Peter and Karin Dambier
Cesidian Root - Radice Cesidiana
Rimbacher Strasse 16
D-69509 Moerlenbach-Bonsweiher
+49(6209)795-816 (Telekom)
+49(6252)750-308 (VoIP:
mail: [email protected]
mail: [email protected]