TechVirtuoso

Why lazy sysadmins and IE 6 make the net unsafe

January 16th, 2010 at 11:14 AM  717 Comments

The number of businesses still using Internet Explorer 6 is painful to see. Coupled with the fact that all of them are on Windows XP or Windows 2000, it turns from pain into terror, especially when it comes to security.

For a lot of system administrators, the reasons to stay outweigh the reasons to upgrade. Websites that break, plugins that won’t load, old software that isn’t updated anymore. Trust me, I’ve been there. However, a lot of it boils down to lazy and poor practices of system administration.

Yes, you’re lazy and you’re bad at your job. Internet Explorer 6 was released in 2001. Yes, 2001, most of us don’t even drive cars that old, let alone unleash people on the “information superhighway” with a browser that old. It was designed at a time when security was not the issue it is today. It was designed to work on operating systems like Windows 98 and Windows ME. Would you let people use Windows ME on your network? No! So why are you letting them use a browser that was built for it?! (more…)

Microsoft highlights MED-V features for Windows 7

January 7th, 2010 at 1:33 PM  275 Comments

Microsoft Enterprise Desktop Virtualization (MED-V), is a component of the Microsoft Desktop Optimization Pack (MDOP) for Software Assurance customers. It allows administrators to provide a virtualized desktop image to users and manage them from a central console. The upcoming Service Pack 1 for MED-V will expand support for Windows 7 (both 32 and 64-bit) as a host platform. Considering most large companies held off on upgrading to Windows Vista and opted to wait for Windows 7, this technology will help boost the migration since they can do so and run older programs that may no longer be supported or have not been certified for Windows 7.

In V1 SP1, MED-V continues to employ Virtual PC 2007 as the virtualization engine but unlike the consumer “Windows XP Mode” it does not require hardware-assisted virtualization like Intel VT or an AMD-V to be present in the processor. This allows even those with lower end or older processors to take advantage of enterprise desktop virtualization.

Microsoft has put together a screencast demonstrating running a MED-V workspace using a V1 SP1 client in the Windows 7 environment.


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Natural User Interface & Microsoft Research

January 7th, 2010 at 1:11 PM  203 Comments

The QWERTY keyboard and the mouse have been the primary methods of interaction with computers for a long time. But there is a group at Microsoft seeking to make that a thing of the past. Enter the team at Microsoft Research.

Larry Larsen over at Microsoft’s Channel 9 has a great interview with Bill Buxton, one of the Principle Researchers at MSR and the author of Sketching User Interfaces. It talks about their work with what Microsoft has dubbed “Natural User Interface” and how the multi-touch technologies in products like the Apple iPhone and Windows 7 will eventually become a regular part of computing, as well as new technologies like those in the Xbox 360 Project Natal.


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Microsoft CES keynote fails to excite

January 7th, 2010 at 8:28 AM  194 Comments

If you couldn’t get a chance to watch the Microsoft CES pre-show keynote last night, you didn’t miss much. If you were actually at the event, I feel sorry for you, it must have been hard to stay awake.

After starting late due to power issues (which fried one of the Microsoft demo units on stage) the keynote got off to a rather boring start with Steve Ballmer, Microsoft CEO, giving various statistics about how well recently released products like Windows 7 and Bing are doing. For the first half hour, the audio stream for the webcast was so bad, it kept cutting out and then required constant volume adjustment. Note to Microsoft, hire a decent sound engineer next time.

If you’d like to watch the keynote for yourself, you can see the saved version on the Microsoft website.

It was all pretty much downhill from there. The much discussed “Courier” tablet that many in the tech press was excited they would announce never came, and there were no details about Windows Mobile 7… at all. Only “we’ll have more about mobile at Mobile World Congress.” So overall, the keynote failed to deliver much of anything that we didn’t know or have not seen already. But, here is a breakdown of what was covered, after the break.

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Snow Leopard lacks security features present in Windows Vista/7

September 17th, 2009 at 10:23 PM  234 Comments

Random_Access_MemoryNoted Apple security analyst Charlie Miller, author of The Mac Hackers Handbook and two-time winner of the Pwn2Own hacking contest has said, in an interview with TechWorld, that the latest version of Apple OS X (10.6 AKA Snow Leopard) lacks full and proper implementation of memory address space layout randomization (ASLR). ALSR is a technology, present in Windows Vista and Windows 7, that randomly assigns data to memory to make it difficult for attackers to determine the address of critical operating system functions being stored in memory, and therefore making it harder for them to create exploits.

“It’s the exact same ASLR as in Leopard, which means it’s not very good,” Miller said, “Apple didn’t change anything. I don’t understand why they didn’t. But Apple missed an opportunity with Snow Leopard.”

When OS X 10.5 (Leopard) was released, Miller and others were critical of Apple not fully implementing ASLR. While there is ASLR present in both Leopard and Snow Leopard, they fail to the heap, the stack and the dynamic linker, the parts of the operating system that are most open to attack. Linux also has what many consider a weak implementation of ASLR since kernel version 2.6.12, although some distributions include better ASLR then the stock kernel based on third party code.

Miller did say that there are elements of Snow Leopard that show Apple did do some things to improve security, most notably the inclusion of data execution prevention or DEP, which utilizes both processor-hardware and software based security programming to help prevent buffer overflow attacks by blocking code from running in memory spaces that’s supposed to contain only data.

However, Apple may be late to the game with implementation of DEP, as it has been present in Windows operating systems since Windows XP Service Pack 2, with further refinements made in Windows Vista and Windows 7.

By incorporating both technologies, Miller says it becomes extremely difficult to craft memory attack exploits. “If you don’t have either, or just one of the two [ASLR or DEP], you can still exploit bugs, but with both, it’s much, much harder. Snow Leopard’s more secure than Leopard, but it’s not as secure as Vista or Windows 7.”

Attend a Microsoft launch event and receive a free copy of Windows 7

August 22nd, 2009 at 6:54 PM  576 Comments

Microsoft is running a launch campaign for Windows 7, Server 2008 R2 and Exchange 2010. The campaign is called “The New Efficiency” and is focused toward IT Professionals and Developers. There are three different tracks that you can take at this event, Windows 7, Server 2008 R2 and Exchange 2010.

There are 25 events across the country so I am sure there is one near you. Sorry international folks, Microsoft will not be holding similar events abroad.

For more information or to register for an event, visit the Microsoft event home page.