Feeds

Securobods warn of wide open backdoor in Netis/Netcore routers

Single, hardcoded password in firmware, claim researchers

Security for virtualized datacentres

Update Routers sold under the brand Netis by Chinese security vendor Netcore have a hardcoded password that leaves users with a wide-open backdoor that could easily be exploited by attackers, claim researchers.

The backdoor allows cyber-criminals to easily change settings or run arbitrary code on routers, securobods at Trend Micro warn.

The backdoor exists as an open UDP port listening at port 53413, accessible from the internet side of the router. This backdoor is “protected” by a single, hardcoded password located in the router’s firmware. The routers – sold under the Netcore brand in China and as Netis outside of the country – all seem to have the same password, according to Trend Micro, which warns that users cannot modify or disable this backdoor.

The security weakness creates a means for hackers to download hostile code or modify the settings on vulnerable devices in order to carry out so-called man-in-the-middle attacks. The researchers said their network scans had suggested that millions of devices worldwide are potentially vulnerable, as a blog post by Trend Micro explains.

Using ZMap to scan vulnerable routers, we found more than two million IP addresses with the open UDP port. Almost all of these routers are in China, with much smaller numbers in other countries, including but not limited to South Korea, Taiwan, Israel, and the United States.

In addition, the file that contains the user name and password for the router’s web-based administration panel is stored without any encryption, claims Trend. This file can be easily downloaded by hackers, the security firm warns.

El Reg contacted China-based manufacturer Netcore on Tuesday but have yet to receive a response. We'll update this story as and when we hear more.

Short of a fix, Trend recommends replacing vulnerable devices. ®

Update

Since the publication of this story, the affected manufacturer, Netis, says it has released a firmware upgrade designed to plug up this security hole.

Beginner's guide to SSL certificates

More from The Register

next story
FYI: OS X Yosemite's Spotlight tells Apple EVERYTHING you're looking for
It's on by default – didn't you read the small print?
Microsoft pulls another dodgy patch
Redmond makes a hash of hashing add-on
NOT OK GOOGLE: Android images can conceal code
It's been fixed, but hordes won't have applied the upgrade
Edward who? GCHQ boss dodges Snowden topic during last speech
UK spies would rather 'walk' than do 'mass surveillance'
DEATH by PowerPoint: Microsoft warns of 0-day attack hidden in slides
Might put out patch in update, might chuck it out sooner
'LulzSec leader Aush0k' found to be naughty boy not worthy of jail
15 months home detention leaves egg on feds' faces as they grab for more power
prev story

Whitepapers

Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.