Feeds

Even when MS apes Unix the bugs keep cropping up

Services For Unix has denial of service bug

  • alert
  • submit to reddit

Seven Steps to Software Security

Microsoft makes security mistakes even when the software giant tries to emulate the approach to delivering services that Unix vendors take.

That's the admittedly cynical conclusion we can infer from news that a denial of service vulnerability has cropped up in Microsoft's Service for Unix (SFU) 2.0.

The software giant has issued a patch to fix the flaw in Services for Unix, which is essentially a resource kit designed to make Unix admins comfortable with using NT, by making Unix-like commands and interfaces available from Windows servers.

In a security notice, Microsoft explained that among the components provided by SFU 2.0 are services that implement the NFS (Network File System) and Telnet protocols.

"Both services contain memory leaks that could be triggered by a user request," Microsoft admitted. "An attacker who repeatedly sent such a request could deplete the kernel memory on the server to the point where performance slowed and the system could potentially fail."

The Telnet services provided within Windows 2000 and NT are not affected by the issue. Boxes running the affected software are only subject to denial of service attacks, and the vulnerability does not hackers to take control of machines or steal data.

Security experts at MIS Corporate Defence Solutions said Services For Unix was sometimes used by hosting companies, where it provided a means for Unix-skilled admins to manage NT servers. However Software For Unix is "not especially common" which tends to mitigate against any great harm been caused by the bug. ®

Related Stories

SSH hits the fan for Unix admins
Internet survives Code Red
Win2K becomes a spam relay
MS Word, IIS/FrontPage, NetMeeting security warnings issued
Security flaw in MS Exchange patch
DoS bug bites Microsoft's first security product
Microsoft racing to patch Outlook flaw
Security patch approach is failing

Related Link

Microsoft's security notice

Mobile application security vulnerability report

More from The Register

next story
Yorkshire cops fail to grasp principle behind BT Fon Wi-Fi network
'Prevent people that are passing by to hook up to your network', pleads plod
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
NEW, SINISTER web tracking tech fingerprints your computer by making it draw
Have you been on YouPorn lately, perhaps? White House website?
LibreSSL RNG bug fix: What's all the forking fuss about, ask devs
Blow to bit-spitter 'tis but a flesh wound, claim team
Attackers raid SWISS BANKS with DNS and malware bombs
'Retefe' trojan uses clever spin on old attacks to grant total control of bank accounts
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
prev story

Whitepapers

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.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
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.