Feeds

Rubbish WPS config sees WiFi router keys popped in seconds

Another day, another way in to your home router

  • alert
  • submit to reddit

Remote control for virtualized desktops

Passwords within routers sold by chipset manufacturer Broadcom and another unnamed vendor can be accessed within seconds thanks to weak or absent key randomisation, security bod Dominique Bongard has claimed.

The weakness relates to the implementation of WiFi Protected Setup (WPS) which allows attackers to calculate the correct key offline.

Broadcom products lacked key randomisation while the unnamed vendor (not Atheros, Bongard said in response to rumours), used a non-random seed value or nonce.

Many brands are affected, Bongard (@Reversity) said, because they use the same reference software to build their custom router gear and only add a new graphical interface.

While Broadcom's implementation is poor, the second vendor's attempt was laughable as the keys are always set to zero.

The flaws meant attackers can easily establish the right PIN rather than launch brute force password-guessing attacks, which may fail on some newer devices that rate-limited the attempts.

Bongard said in the Passwordscon presentation (slides here) that users should disable WPS until the outstanding problems are fixed.

He advised fellow researchers to check other access points for use of flawed pseudo random number generators.

In 2011 researcher Stefan Viehbock discovered WPS could be unraveled in a few hours through 11,000 brute-force attempts against devices that did not defend against such attacks. ®

Remote control for virtualized desktops

More from The Register

next story
'Regin': The 'New Stuxnet' spook-grade SOFTWARE WEAPON described
'A degree of technical competence rarely seen'
You really need to do some tech support for Aunty Agnes
Free anti-virus software, expires, stops updating and p0wns the world
You stupid BRICK! PCs running Avast AV can't handle Windows fixes
Fix issued, fingers pointed, forums in flames
Regin: The super-spyware the security industry has been silent about
NSA fingered as likely source of complex malware family
Privacy bods offer GOV SPY VICTIMS a FREE SPYWARE SNIFFER
Looks for gov malware that evades most antivirus
Patch NOW! Microsoft slings emergency bug fix at Windows admins
Vulnerability promotes lusers to domain overlords ... oops
HACKERS can DELETE SURVEILLANCE DVRS remotely – report
Hikvision devices wide open to hacking, claim securobods
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
10 threats to successful enterprise endpoint backup
10 threats to a successful backup including issues with BYOD, slow backups and ineffective security.
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.