CERT/CC Alert: DSL Routers Have Hard-Coded Passwords

[silicon_toad2000]

The CERT Coordination Center (CERT/CC) has issued an alert warning that several DSL routers have hidden administrator accounts with easy to guess, hard-coded passwords.
The affected routers are
Asus DSL-N12E;
Digicom DG-5524T;
Observa Telecom RTA01N;
Philippine Long Distance
Telephone (PLDT) SpeedSurf 505AN;
ZTE ZXV10 W300.

CERT/CC recommends that users "enable firewall rules so the telnet of the device is not accessible to untrusted sources [as well as] rules that block SNMP."

http://www.computerworld.com/article/2976935/security/some-routers-vulnerable-to-remote-hacking.html
https://www.kb.cert.org/vuls/id/950576