Feeds

Post-Vista Windows flaw creates Blue Screen risk

BSOD it

The smart choice: opportunity from uncertainty

Miscreants have created an exploit capable of crashing Windows boxes and triggering the infamous Blue Screen of Death.

The attack relies on exploiting an unpatched vulnerability in Microsoft's implementation of SMB2 (Server Message Block), a network protocol involved in the sharing of files and printers on a network.

Windows 2000/XP are not affected by the exploit, but newer flavours of Windows 7, Vista and Server 2008 are all at risk. Proof-of-concept code demonstrating the vulnerability was published on Monday.

Attacks based on he flaw could cause all sorts of trouble in corporate environments, in particular. Fortunately, basic firewall defences are enough to dampen the threat, according to a preliminary assessment of the problem by security researchers at the Internet Storm Centre (ISC).

"The exploit needs no authentication, only file sharing enabled with one packet to create a BSOD [Blue Screen of Death]," ISC researchers warn. "We recommend filtering access to port TCP 445 with a firewall."

Five Windows specific critical patches are due out later on Tuesday. It's rather unlikely that any will plug the new BSOD vuln. Past form indicates that the release was timed to outflank Microsoft's security gnomes and provide for the maximum exploit period. ®

Designing a Defense for Mobile Applications

More from The Register

next story
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
Do YOU work at Microsoft? Um. Are you SURE about that?
Nokia and marketing types first to get the bullet, says report
Microsoft takes on Chromebook with low-cost Windows laptops
Redmond's chief salesman: We're taking 'hard' decisions
Cheer up, Nokia fans. It can start making mobes again in 18 months
The real winner of the Nokia sale is *drumroll* ... Nokia
EU dons gloves, pokes Google's deals with Android mobe makers
El Reg cops a squint at investigatory letters
Chrome browser has been DRAINING PC batteries for YEARS
Google is only now fixing ancient, energy-sapping bug
Big Blue Apple: IBM to sell iPads, iPhones to enterprises
iOS/2 gear loaded with apps for big biz ... uh oh BlackBerry
prev story

Whitepapers

Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.