DSL home routers from a number of vendors contain hard-coded credentials that could allow a hacker to hijack the network devices via telnet services.
A bunch of home gateway vendors, presumably sourcing their firmware from the same place, can be hijacked using depressingly common hard-coded logins.
Experts from the Carnegie-Mellon CERT discovered that a number of home routers from various vendors comes with hard-coded credentials that could be used to hijack the devices.
On Tuesday, the CERT at the Software Engineering Institute at Carnegie Mellon University issued an advisory confirming the serious security issued in the home routers and invited organizations to write firewall rules that block telnet or SNMP on the device as a temporary measure to mitigate the threat.
“A remote attacker may utilize these credentials to gain administrator access to the device,” states the CERT advisory
The list of vendors includes ASUS and ZTE in Asia, and Digicom, Observa Telecom, and carrier Philippine Long Distance Telephone (PLDT). All the devices analyzed by the researchers have the “XXXXairocon” as default telnet password, where the “XXXX” is the MAC address of the home router. All the home routers except the PLDT devices have admin as default username, while the PLDT username is adminpldt.
Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer.
Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US.
Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines.
Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.