Feeds

Rubbish WPS config sees WiFi router keys popped in seconds

Another day, another way in to your home router

  • alert
  • submit to reddit

Internet Security Threat Report 2014

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. ®

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
Webcam hacker pervs in MASS HOME INVASION
You thought you were all alone? Nope – change your password, says ICO
You really need to do some tech support for Aunty Agnes
Free anti-virus software, expires, stops updating and p0wns the world
Meet OneRNG: a fully-open entropy generator for a paranoid age
Kiwis to seek random investors for crowd-funded randomiser
USB coding anarchy: Consider all sticks licked
Thumb drive design ruled by almighty buck
Attack reveals 81 percent of Tor users but admins call for calm
Cisco Netflow a handy tool for cheapskate attackers
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
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
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?
Getting ahead of the compliance curve
Learn about new services that make it easy to discover and manage certificates across the enterprise and how to get ahead of the compliance curve.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.