Microsoft rushes Explorer 8 patch release

Microsoft's Patch Tuesday for May addresses 10 security issues, three of them that need to be addressed immediately

Just 11 days after issuing an advisory, Microsoft has released a patch for a bug in Internet Explorer 8 that bedeviled the U.S. Department of Labor earlier this month.

Microsoft's speedy release of this patch "is an outstanding example of Microsoft's responsiveness to the security community and their users," wrote Andrew Storms, director of security of operations for security software provider Tripwire, in an email statement.

This IE8 security bulletin (MS13-038) is one of 10 that Microsoft released Tuesday as part of its "Patch Tuesday" release of bug fixes and security bulletins that the company routinely issues on the second Tuesday of each month.

Microsoft marked MS13-038 as critical and the company, along with other security firms, are advising those still running IE8 to apply the fix immediately. Using an altered Labor Department Web page, attackers used this vulnerability in an attempt to install malicious code on any visitor's machine running IE8. Microsoft issued a temporary fix for this vulnerability last week.

The other critical bulletin, MS13-037, also affects Internet Explorer. This update resolves 11 issues that would have made it easy to inject malicious code into the browser from a specially crafted Web page, allowing the user to take control of a computer. The update covers the PWN2Own vulnerability, unearthed earlier this year.

Those running Windows Server 2012 should take an immediate look at MS MS13-039. This update fixes a vulnerability in the Microsoft Web IIS (Internet Information Services) that could be used in a Denial of Service (DoS) attack, through the use of an HTTP packet. Because it would be relatively simple to craft an attack using this vulnerability, organizations should apply this update as soon as possible, because exploits based on this vulnerability might start appearing in as little as a few weeks, according to Tripwire.

Ross Barrett, senior manager of security engineering at the security firm Rapid7, wrote in a statement that "while DoS attacks are generally considered second (or third) tier as far as risk, this could potentially be very disruptive to an organization, since many remote services and Active Directory integrations rely on http.sys," which is the networking subsystem used by IIS.

A "successful exploit of this bug could have serious implications for public Web servers without some kind of inline [intrusion prevention system] in front of them. Essentially, any user could launch a simple attack and the server will essentially be offline," Storms noted. He also noted that any copy of Microsoft Server 2012 -- not just those functioning as Web servers -- could be running IIS, such as a server for Microsoft Exchange or SharePoint.

The seven remaining bulletins -- none critical but all deemed important -- address bugs in Microsoft's Lync, Publisher, Word, Visio, Windows Essentials, .Net, and the Windows kernel.

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 newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Tags Microsoftpatch managementpatchesExploits / vulnerabilities

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

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Tom Pope

Dynabook Portégé X30L-G

Ultimately this laptop has achieved everything I would hope for in a laptop for work, while fitting that into a form factor and weight that is remarkable.

Tom Sellers

MSI P65

This smart laptop was enjoyable to use and great to work on – creating content was super simple.

Lolita Wang

MSI GT76

It really doesn’t get more “gaming laptop” than this.

Jack Jeffries

MSI GS75

As the Maserati or BMW of laptops, it would fit perfectly in the hands of a professional needing firepower under the hood, sophistication and class on the surface, and gaming prowess (sports mode if you will) in between.

Taylor Carr

MSI PS63

The MSI PS63 is an amazing laptop and I would definitely consider buying one in the future.

Christopher Low

Brother RJ-4230B

This small mobile printer is exactly what I need for invoicing and other jobs such as sending fellow tradesman details or step-by-step instructions that I can easily print off from my phone or the Web.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?