Feeds

Hacker backdoors Linksys, Netgear, Cisco and other routers

Does anyone take consumer security seriously?

The Power of One eBook: Top reasons to choose HP BladeSystem

The new year begins as the old year ended: with yet more vulnerabilities turning up in consumer-grade DSL modems.

A broad hint for any broadband user would be, it seems, to never, ever enable any kind of remote access to the device that connects you to the Internet. However, the hack published by Eloi Vanderbeken at github, here, resets devices to factory default, enabling a remote attack without the password.

Vanderbeken says the backdoor is confirmed in devices from Cisco (under both Cisco and Linksys brands, the latter since offloaded to Belkin), Netgear, Diamond, LevelOne and OpenWAG. According to a post on HackerNews, the common link between the vulnerable devices is that they were manufactured under contract by Sercomm.

Trying to access a Linksys WAG200G device for which he'd forgotten the password, Vanderbeken noticed the device was listening on Port 32764, an undocumented service noted by other users. Reverse engineering the MIPS code the device's firmware is written in, he says he located a way to send commands to the router without being authenticated as an administrator.

In particular, the backdoor allowed him to brute-force a factory reset without providing a password – meaning that on his next login, he had access to everything.

Vanderbeken's proof-of-concept python code includes reporting on whether the device it's running against is vulnerable or not.

It seems to The Register that at least this vulnerability doesn't permit a silent attack: if an outsider ran the code against someone's router, the crash and resulting reset to default passwords would at least alert the victim that something had happened. ®

Designing a Defense for Mobile Applications

More from The Register

next story
DARPA-derived secure microkernel goes open source tomorrow
Hacker-repelling, drone-protecting code will soon be yours to tweak as you see fit
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
Four fake Google haxbots hit YOUR WEBSITE every day
Goog the perfect ruse to slip into SEO orfice
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.