Microsoft Patch Tuesday reinforces the value of software upgrades

Microsoft has issued five critical security bulletins in December's round of Patch Tuesday

Enterprise usage of Windows XP continues to decline though many organizations still use the outdated operating system, at their own risk, according to security research firm Qualys.

Enterprise usage of Windows XP continues to decline though many organizations still use the outdated operating system, at their own risk, according to security research firm Qualys.

The latest round of monthly patches from Microsoft illustrates the need for organizations to move from older versions of Microsoft software if they haven't done so already.

"The load of the risk is on older software versions," said Wolfgang Kandek, chief technology officer for security firm Qualys, about this round of Microsoft software patches.

Overall, Microsoft Patch Tuesday for December addressed a total of 24 vulnerabilities with 11 security bulletins. The bulletins cover Microsoft Windows, Office, Internet Explorer, Exchange, Office365, Visual Studio, and SharePoint.

Microsoft rated five of these bulletins as critical, meaning that the patches they contain should be applied as soon as possible.

Perhaps the set of critical patches that should be applied first is MS13-096, which addresses a vulnerability in Microsoft's GDI+ library for parsing TIFF image files. It is already being exploited by attackers.

The vulnerability affects mainly older Microsoft software, including Windows Vista, Office 2003, Office 2007 and Office 2010. It is already being used in targeted attacks in the Middle East and Asia.

Kandek noted that newer software tends to have fewer vulnerabilities than older software. "The newer software versions just have more security features. Windows 8.1 has more security features that Windows 8 which has more than Windows 7, which has many more than Windows XP," he said.

"Even if you are fully patched with Windows XP, you are running more of a risk than with a fully patched Windows 7 installation," Kandek said.

As an example, Kandek noted there has another zero-day vulnerability in the Windows XP kernel that this month's patch cycle has not addressed. A zero day vulnerability means that exploits have already been crafted that take advantage of a software flaw. In this case, an attacker can send the user a maliciously crafted PDF file that, when opened, can deposit code in the computer's memory that grants another user administrative access.

Microsoft offers a work-around for this problem.

Qualys estimated that 15 percent of enterprise users are still running Windows XP. Though the percentage of XP users is rapidly declining, Kandek doubted that everyone will be off the OS by April 2014, when Microsoft will cease issuing security patches for Windows XP. "After April, these machines will be very quickly be easy targets," Kandek said.

Another critical set of patches come under the security bulletin MS13-097, which affects Internet Explorer. The bulletin indicated that these vulnerabilities are easy to exploit, such as by using a maliciously crafted webpage.

The third critical bulletin, MS13-105 addresses a number of flaws in Outlook Web Access that an attacker could use to gain access to Microsoft Exchange server by tricking the user into opening a documents with embedded malicious code.

The fourth critical bulletin, MS13-099, affects all desktop and server versions of Microsoft Windows, including Windows RT. This vulnerability, in the Windows Script functionality, allows a remote attacker to gain access to a computer through a website that hosts specially crafted content.

The final critical vulnerability for this month, addressed in MS13-098, allows attackers to add their own malware to software being installed on a computer over a network using the Authenticode signing algorithm.

The remaining bulletins, ranked as important, should be applied in the organization's usual patch management schedule, Kandek advised. They cover Windows, SharePoint Server, Office and Microsoft Developer Tools.

For the year, Microsoft covered 330 vulnerabilities with 106 bulletins.

Joab Jackson covers enterprise software and general technology breaking news for The IDG News Service. Follow Joab on Twitter at @Joab_Jackson. Joab's e-mail address is Joab_Jackson@idg.com

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Tags patchesMicrosoftsecuritypatch managementExploits / vulnerabilitiesqualys

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.

Joab Jackson

IDG News Service
Show Comments

Essentials

Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop

Learn more >

Lexar® JumpDrive® S57 USB 3.0 flash drive

Learn more >

Mobile

Lexar® JumpDrive® S45 USB 3.0 flash drive 

Learn more >

Exec

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

Learn more >

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

Learn more >

Audio-Technica ATH-ANC70 Noise Cancelling Headphones

Learn more >

Lexar® JumpDrive® C20c USB Type-C flash drive 

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?