Menu
Some routers vulnerable to remote hacking due to hard-coded admin credentials

Some routers vulnerable to remote hacking due to hard-coded admin credentials

Attackers could use the credentials to log in over telnet

Several DSL routers from different manufacturers contain a guessable hard-coded password that allows accessing the devices with a hidden administrator account.

According to an alert issued Tuesday by the CERT Coordination Center (CERT/CC) at Carnegie Mellon University, the affected device models are: ASUS DSL-N12E, DIGICOM DG-5524T, Observa Telecom RTA01N, Philippine Long Distance Telephone (PLDT) SpeedSurf 504AN and ZTE ZXV10 W300.

All of the devices have an admin password in the form "XXXXairocon" where XXXX are the last four characters of the device's physical MAC address, CERT/CC said.

Using a portion of the MAC address, which is unique for every device, does not make it harder for an attacker to find out the password, because a device's full MAC address can be obtained by sending a public query over the Simple Network Management Protocol (SNMP).

For most of the routers, the username corresponding to the hard-coded password is admin, while for the PLDT SpeedSurf 504AN it's adminpldt. A remote attacker may utilize these credentials to gain administrator access to the affected devices over their telnet service, CERT/CC said.

The vulnerability is not new and was independently reported by separate researchers in 2014 for the ZTE ZXV10 W300 and in May for the Observa Telecom RTA01N. However, it hasn't been known until now that other devices were also affected.

Since the hard-coded password has the same format for all the mentioned devices, it's likely that their firmware was developed by the same company. It's not unusual in the embedded device world for one vendor to contract other companies to develop firmware development or even to manufacture their hardware.

Earlier this year a security researcher found identical vulnerabilities in a large number of DSL router models from different manufacturers that were distributed by ISPs from around the world to their customers. Despite the different branding on the devices, all of them were running firmware developed by a single Chinese company.


Follow Us

Join the newsletter!

Error: Please check your email address.

Featured

Slideshows

Kiwi channel closes 2017 with After Hours

Kiwi channel closes 2017 with After Hours

The channel in New Zealand came together to celebrate the close of 2017, as the final After Hours played out in front of a bumper Auckland crowd.

Kiwi channel closes 2017 with After Hours
Meet the top performing HP partners in NZ

Meet the top performing HP partners in NZ

HP honoured leading partners across the channel at the Partner Awards 2017 in New Zealand, recognising excellence across the entire print and personal systems portfolio.

Meet the top performing HP partners in NZ
Tech industry comes together as Lexel celebrates turning 30

Tech industry comes together as Lexel celebrates turning 30

Leading figures within the technology industry across New Zealand came together to celebrate 30 years of success for Lexel Systems, at a milestone birthday occasion at St Matthews in the City.​

Tech industry comes together as Lexel celebrates turning 30
Show Comments