10:53 AM

Microsoft Issues Security Warnings For Windows, Outlook, And Content Management

Security hole in Windows could let attackers take over a vulnerable system.

Microsoft issued a critical warning about a security hole in Windows NT 4.0, Windows XP, and Windows 2000 that could enable attackers to take over a vulnerable system.

The company also issued two more security warnings, about a flaw in Content Management Server 2001 rated as important, and a moderate-rated vulnerability in Outlook 2002. The company posted patches for all three flaws in the warnings, which were posted Wednesday.

The Windows flaw is in the Microsoft Locator service, which lets users map easy-to-remember logical names of systems on a company's network, such as printer servers, to the actual network addresses. An attacker could take over by sending a malformed request to the Locator, although a firewall set to block external NetBIOS traffic will prevent attacks from the Internet.

The Content Management flaw would let attackers intercept data that an Internet user shares with a site created using the Microsoft software and change data shown to the user. And the Outlook flaw will stop Outlook from sending encrypted mail when users use V1 Exchange Server Security Certificates, which aren't commonly used, Microsoft said. Instead, Outlook 2002 is set up to use Secure MIME (SMIME) certificates by default.

Microsoft has posted detailed security bulletins and patches for the Windows security flaw, as well as the Outlook and Content Management holes.

Comment  | 
Print  | 
More Insights
Newest First  |  Oldest First  |  Threaded View
Register for InformationWeek Newsletters
White Papers
Current Issue
Top IT Trends to Watch in Financial Services
IT pros at banks, investment houses, insurance companies, and other financial services organizations are focused on a range of issues, from peer-to-peer lending to cybersecurity to performance, agility, and compliance. It all matters.
Twitter Feed
InformationWeek Radio
Archived InformationWeek Radio
Join us for a roundup of the top stories on for the week of July 17, 2016. We'll be talking with the editors and correspondents who brought you the top stories of the week to get the "story behind the story."
Sponsored Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.