Re: [Full-disclosure] ASUS RT-N13U Unsecured Telnet on LAN and WAN

[Shelby Spencer <pwd_manager@xxxxxxxxxxx>]

It should be further noted, that setting a password for the telnet account via 
the /sbin/chpasswd.sh script is only valid until the next reboot when it gets 
wiped out.

After alerting ASUS, I got the following non-reply.  They are not taking the 
problem seriously (they just closed out the ticket with a generic response):

Thank you for contacting ASUS Customer Service.
My name is Joe and it is my pleasure to help you with your problem.

Thank
 you for contacting ASUS and providing your feedback. Your information 
has been documented. If you have further questions or concerns, please 
contact us at 812-282-2787 and we will be happy to help you.

Welcome to refer Troubleshooting & FAQ for ASUS products in ASUS website: 
http://support.asus.com/servicehome.aspx?SLanguage=en

If you continue to experience issues in the future, please do not hesitate to 
contact us.

An email survey will be sent to you within the next 5 days. Please be sure to 
rate the service I provided to you today.


From: pwd_manager@xxxxxxxxxxx
To: full-disclosure@xxxxxxxxxxxxxxxxx
Date: Mon, 28 Oct 2013 16:33:52 -0700
Subject: [Full-disclosure] ASUS RT-N13U Unsecured Telnet on LAN and WAN




The ASUS RT-N13U home router comes configured with an unsecured telnet for user 
"admin".
Telnetting in with this user will result in a root shell.  The telnet is not 
configurable from the web interface, nor does changing the password on the web 
interface's admin user make any difference.  I have alerted ASUS to the problem 
on 10/25/13.  I have been able to verify that this telnet interface is visible 
from both the LAN and WAN.

Sincerely,
Shellster
                                          

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/