Microsoft exec calls XP hack 'frightening'

By Tom Espiner , ZDNet (UK)
Posted on ZDNet News: Nov 13, 2007 6:56:00 AM

The demonstration took place Monday at an event sponsored by Get Safe Online--a joint initiative of the U.K. government and industry. At the event, which was aimed at heightening security awareness among small businesses, two members of the U.K. government intelligence group Serious Organized Crime Agency connected a machine running Windows XP with Service Pack 1 to an unsecured wireless network. The machine was running no antivirus, firewall, or anti-spyware software and contained a sample target file of passwords to be stolen.

The SOCA officials wished to remain anonymous. One of them, "Mick," remained behind a screen while carrying out the hack into the unpatched computer of a fellow officer, "Andy."

"It's easy to connect to an unsecured wireless network," said Mick. "You could equate Andy with being in his bedroom, while I'm scanning for networks outside in my car. If I ordered or viewed illegal materials, it would come back to Andy."

Mick used a common, open-source exploit-finding tool he had downloaded from the Internet. SOCA asked ZDNet UK not to divulge the name of the tool.

"You can download attack tools from the Internet, and even script kiddies can use this one," said Mick.

Mick found the IP address of his own computer by using the XP Wireless Network Connection Status dialog box. He deduced the IP address of Andy's computer by typing different numerically adjacent addresses in that IP range into the attack tool, then scanning the addresses to see if they belonged to a vulnerable machine.

Using a different attack tool, he produced a security report detailing the vulnerabilities found on the system. Mick decided to exploit one of them. Using the attack tool, Mick built a piece of malware in MS-DOS, giving it a payload that would exploit the flaw within a couple of minutes.

Getting onto the unsecured wireless network, pinging possible IP addresses of other computers on the network, finding Andy's unpatched computer, scanning open ports for vulnerabilities, using the attack tool to build an exploit, and using the malware to get into the XP command shell took six minutes.

"If you were in (a cafe with Wi-Fi access), your coffee wouldn't even have cooled down yet," said Sharon Lemon, deputy director of SOCA's e-crime unit.

Mick then went into the My Documents folder and, using a trivial transfer protocol, transferred the document containing passwords to his own computer. The whole process took 11 minutes.

A SOCA representative said that the demonstration was "purely to point out that, if a system hasn't had patches, it's a relatively simple matter to hack into it." SOCA stopped short of recommending small businesses move to Vista; a SOCA representative said that applying Service Pack 2 to XP, with all the patches applied, and running a secured wireless network is "perfectly sensible way to do it."

Nick McGrath, head of platform strategy for Microsoft U.K., was surprised by the incident.

"In the demonstration we saw, it was both enlightening and frightening to witness the seeming ease of the attack on the (Windows) computer," said McGrath. "But the computer was new, not updated, and not patched."

McGrath said that having anti-spyware installed was not as important as having the software updated. He added that Microsoft works closely with original equipment manufacturers to encourage the preloading of antivirus and anti-spyware on a 30-day trial basis. McGrath also said that Service Pack 2 for XP had a firewall and that Vista was not as "accessible to the average hacker" due to "operating system components."

Tom Espiner of ZDNet UK reported from London.

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