After attacks, Microsoft to rush out fix for ASP.net bug

For a change, the update will be released first to the Microsoft Download Center

Microsoft is rushing out a fix for a Windows Web server flaw that is starting to be exploited by online attackers.

The patch fixes a bug in the Windows ASP.net technology used in Microsoft's servers. Microsoft says it's seen "limited" exploitation of the flaw in online attacks, but the problem is serious enough that the company has decided to rush out a fix ahead of its next regular patch update, scheduled for Oct. 12.

ASP.net is used to build Web applications, and the bug gives attackers a way to gain access to protected files or read encrypted data sent by an ASP.net application server. Earlier this month, researchers demonstrated how the attack could be used to steal encrypted session cookies or possibly even user names and passwords from websites.

Microsoft occasionally does this type of out-of-band update when it spots a serious security problem, but this release is different. For the first time, Microsoft will initially release the patch only at the Microsoft Download Center -- typically used by users at large organizations who want to test the patches before manually installing them companywide.

"This enables us to get the update out as quickly as possible, allowing administrators with enterprise installations, or end users who want to install this security update manually, the ability to test and update their systems immediately," Microsoft said Monday in a blog post announcing the update. "We strongly encourage these customers to visit the Download Center, download the update, test it in their environment and deploy it as soon as possible."

For most consumers, who rely on automatic updates, the patch is still a few days away. Consumers aren't vulnerable to the bug, however, unless they happen to be running a Web server on their computer.

Microsoft will release the update in the Download Center at 10 a.m. Pacific Time on Tuesday. The company didn't give a date for the broader, automatic update.

"This is the first time we've released [an] update this way, but due to the nature of the active attacks and the severity of the potential loss of data, we are releasing the security update to the Microsoft Download Center first so customers (specifically large enterprises, hosting providers, and ISVs) can begin updating their systems," Microsoft said in an e-mailed statement. "Within a few days we will distribute the update through the rest of our standard distribution channels."

Join the newsletter!

Or
Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags securityMicrosoftoperating systemssoftwareWindowspatchesexploitsvulnerability

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

Robert McMillan

IDG News Service
Show Comments

Essentials

James Cook University - Master of Data Science Online Course

Learn more >

Mobile

Sansai 6-Outlet Power Board + 4-Port USB Charging Station

Learn more >

Victorinox Werks Professional Executive 17 Laptop Case

Learn more >

Exec

Budget

Back To Business Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?