Windows Home Server vulnerable to critical bug, too

Microsoft revises January security bulletin again to add WHS to risk list

For the second time in three days, Microsoft added another product to the list of those vulnerable to a critical bug patched nearly three weeks ago.

Windows Home Server, the company's newest operating system, is also at risk to the vulnerabilities spelled out by the MS08-001 security bulletin, according to a Friday update. The advisory, first issued on January 8 -- and then fingered by researchers as the month's most pressing -- was revised Wednesday, when Microsoft announced that Windows Small Business Server was at risk. Neither Windows Home Server or Small Business Server had been among the versions mentioned in the original bulletin.

"Supported editions of Windows Small Business Server 2003 and Windows Home Server contain the same affected code as Windows Server 2003," Microsoft said in the revised notice. "[However], Windows Small Business Server and Windows Home Server configurations have IGMP [Internet Group Management Protocol] enabled by default and will result in a greater exposure to the same vulnerability."

The initial bulletin had pegged the threat to Windows Server 2003 as "important," the second highest rating in Microsoft's four-step scoring system. But it was later rated as "critical" for Windows Home Server and Small Business Server.

According to Microsoft, the vulnerability can be exploited by sending malicious data packets to unsuspecting users, who could find their PCs infected with malware or under the control of others. Within 10 days of Microsoft posting its first patches, researchers had produced proof-of-concept exploits, claiming that the company had overestimated the difficulty in crafting attack code.

"It's apparently possible to create a reliable exploit for this issue," noted Symantec on Jan. 18.

Windows Home Server owners have been offered the patch via the software's update mechanism, Microsoft said in the revised bulletin. "Customers should apply the update to remain secure," it urged.

Microsoft did not say why it had not identified Windows Home Server or Small Business Server as vulnerable and requiring repair when it first issued updates earlier this month.

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Gregg Keizer

Computerworld
Show Comments

Essentials

Lexar® JumpDrive® S57 USB 3.0 flash drive

Learn more >

Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop

Learn more >

Mobile

Lexar® JumpDrive® S45 USB 3.0 flash drive 

Learn more >

Exec

Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards 

Learn more >

Audio-Technica ATH-ANC70 Noise Cancelling Headphones

Learn more >

Lexar® JumpDrive® C20c USB Type-C flash drive 

Learn more >

HD Pan/Tilt Wi-Fi Camera with Night Vision NC450

Learn more >

Budget

Back To Business Guide

Click for more ›

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?