The U.S. government--with its hundreds of thousands of PCs--is pushing through a strategy for desktop security that most companies don't dare. It's moving agencies and departments from hundreds of security configurations for Windows XP and Vista to just one.
The move is supposed to be completed by February, when a directive from the White House's Office of Management and Budget goes into effect, forcing government agencies and military branches to conform to a Windows security configuration designed for the Air Force two years ago. As of June 30, all federal software contracts must specify that applications run optimally on the configuration.
The measure's sure to be met with some resistance, such as from government CIOs who have to spend time and budget making sure their legacy applications--even ones just a year or two old--run well on their newly configured PCs.
The Air Force did it first
Photo by Airman 1st Class Nathan Doza/U.S. Air Force
The Air Force implemented its single configuration between May and December 2006, going from several hundred configurations to one. It was a major effort, but now the Air Force can centrally test any changes against that one configuration, says Ken Heitkamp, associate director for life-cycle management in the Air Force's Office of Warfighting Integration and CIO.
Keith Rhodes, who as chief technologist at the Government Accountability Office is known as the feds' top hacker, says the new standard configuration will be a big improvement. "There's very, very little uniformity in policy and configuration," he says. "We've got to move to a more stable environment." Part of Rhodes' job is trying to hack into government agencies, and having so many security policies and configurations makes that easier since it means many machines aren't at their highest security level.
The FDCC spec specifies nearly 300 settings in Windows. For example, Windows XP's default gives the user system administration privileges, and that must be changed to basic privileges to limit what a hacker could access on a compromised machine. It calls for locking down services such as Windows' messenger service--intended for system administrators to contact end users, but which can be used by hackers to trick users into typing in URLs and downloading viruses--and the FTP publishing service. Heitkamp says the spec turns off the Gadget feature in Windows XP, which lets people download widgets such as stock market tickers. And it turns off Windows Meeting Space, a team collaboration capability that could open security holes, and the automatic update feature that lets Microsoft push out patches.
The FDCC dictates how often passwords must be changed and how long they must be, and how long a workstation can remain idle before being automatically logged off. It spells out which users have which level of privileges and what activities must be logged.