Feeds

Windows Phones BLAB passwords to hackers, thanks to weak crypto

Rogue Wi-Fi hotspots can hoover up and CRACK encrypted login info

Top 5 reasons to deploy VMware with Tegile

Microsoft has warned IT departments to batten down their Wi-Fi networks following the discovery of a security vulnerability in Windows Phones that leaks users' passwords.

Miscreants who set up rogue hotspots can grab from devices employees' encrypted domain credentials, needed to authenticate with corporate systems and access network resources. But the algorithm encrypting this sensitive data is cryptographically weak, allowing hackers to recover the login details and use them to masquerade as staffers.

“The attacker could take any action that the user could take on that network resource,” Microsoft warned.

The software giant has urged IT bosses to distribute a special root certificate for Windows Phone 8 and 7.8 devices accessing their networks; that certificate allows the handsets to confirm that any corporate wireless access points they’re connecting to are genuine before sending over the sensitive data.

Microsoft won’t issue a security update to fix the vulnerability, though, it said.

The certificate advisory follows the disclosure of a flaw in the Protected Extensible Authentication Protocol with Microsoft Challenge Handshake Authentication Protocol (version 2) used in Windows Phones for WPA2 authentication.

Explaining how Windows 8 phones can be immunised against the vuln, the software giant said the devices “can be configured to validate a network access point to help make sure the network is your company’s network before starting an authentication process. This can be done by validating a certificate that's on your company’s server. Only after validating the certificate is username and password information sent to the authentication server, so the phone can connect to the Wi-Fi network.”

Instructions on how to distribute the certificate, and why it's important, are here. ®

Choosing a cloud hosting partner with confidence

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?
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.
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.