Feeds

D-Link FINALLY slams shut 'Joel's backdoor'

Punters: get patching

Protecting against web application threats using SSL

Better late than never: D-Link has issued the promised patch that closes an administrative backdoor in its SOHO broadband routers.

When the vulnerability was first discovered, the vendor promised to patch it by the end of October.

The patch has now been issued here.

If an attacker set their browser user agent string to read xmlset_roodkcableoj28840ybtide, their D-Link router would obligingly drop them straight into the admin page without a login. Only turning off remote administration would protect the device.

An amusing and really obvious (except that Vulture South didn't notice it either) aspect of the vulnerability is what happens if the secret string is reversed. As pointed out by Sophos at Paul Ducklin's Naked Security blog, the string (ignoring the xmlset_ part) reads:

Edit by 04882 Joel Backdoor

In other words, in our opinion, someone dropped the backdoor into the device during development and forgot to remove it later. ®

Reducing the cost and complexity of web vulnerability management

More from The Register

next story
Spies would need SUPER POWERS to tap undersea cables
Why mess with armoured 10kV cables when land-based, and legal, snoop tools are easier?
Early result from Scots indyref vote? NAW, Jimmy - it's a SCAM
Anyone claiming to know before tomorrow is telling porkies
TOR users become FBI's No.1 hacking target after legal power grab
Be afeared, me hearties, these scoundrels be spying our signals
Jihadi terrorists DIDN'T encrypt their comms 'cos of Snowden leaks
Intel bods' analysis concludes 'no significant change' after whistle was blown
Home Depot: 56 million bank cards pwned by malware in our tills
That's about 50 per cent bigger than the Target tills mega-hack
Hackers pop Brazil newspaper to root home routers
Step One: try default passwords. Step Two: Repeat Step One until success
NORKS ban Wi-Fi and satellite internet at embassies
Crackdown on tardy diplomatic sysadmins providing accidental unfiltered internet access
UK.gov lobs another fistful of change at SME infosec nightmares
Senior Lib Dem in 'trying to be relevant' shocker. It's only taxpayers' money, after all
Critical Adobe Reader and Acrobat patches FINALLY make it out
Eight vulns healed, including XSS and DoS paths
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
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?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.