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Security Hole In Windows 7 UAC

An anonymous reader writes "A prolific blogger is warning of a possible security hole in the latest beta version of Windows 7. Long Zheng has posted both a description and a proof of concept for an issue that could allow an attacker to skirt the User Account Control component in the new version of Windows. The problem, explains Zheng, is that UAC itself is controlled through system settings. This can allow an attacker to completely disable the protections without user notification. Zheng notes that the issue can be easily fixed by changing the UAC setting to notify users when Windows settings are altered, and that Microsoft could remedy the problem by prompting the user when the UAC setting is altered."

2 of 388 comments (clear)

  1. Re:Microsoft already replied by cgenman · · Score: 5, Interesting

    I kind of agree with the less-is-more approach to end user interactions. I get a lot of clients who have learned to cope with the modern click-prompt overload by simply clicking somewhat randomly on everything that comes up in front of them. Frequently, this leads to disabling some vitally important part of their computer in a way that any person who actually read prompts would have easily avoided.

    Sadly, the less computer savvy you are, the more likely you are to be constantly deluged with upgrade prompts from Adobe, install requests for Safari from Apple, and the multitude of prompts when Hewlett Packard's genuinely awful drivers crash. Prompts to continue subscriptions to Symantec, upgrade to the latest acrobat, log in to windows messenger, etc. And, of course, each separate component has its own prompts. "Click here to upgrade. I see you've clicked here to upgrade, would you like me to go to the internet and upgrade? Upgrade will begin when you click the OK button below. Upgrading... Upgrade has completed, click OK below to continue. Thank you for upgrading, please visit unintelligiblylongwebsite.com/pagenobodywilleverclickon.html to give us feedback on this process. Press Dismiss below to return to the installer. Thank you for returning to the installer. If you are satisfied with this interaction, press OK below."

    90% of users have no idea what their computer is doing, or should be doing, under the hood. If they weren't already suffering from click-fatigue, they wouldn't be the right people to decide on technical issues anyway.

    Obviously, it shouldn't be possible to disable UAC without actually getting a UAC prompt. But in general, UAC is an annoying system that most users completely tune out. Instead of hightening user knowledge, it simply drowns out any real issues.

  2. Re:Short: Don't work as Administrator by mpeskett · · Score: 5, Interesting

    When has a windows administrator account ever meant that you could do whatever you please?

    I'm sat here right now, running an admin account on XP, and if I try to delete the "Desktop" folder in my own account, I can't. It tells me "Desktop is a Windows system folder and is required for Windows to run properly. It cannot be deleted". Never mind the fact that I've changed the location of that folder by fiddling with the registry to put it on a separate hard drive, the redundant copy on C:\ is still protected against deletion.

    Contrast this against the stories about *nix systems where some fool runs rm -rf as admin and it only stops deleting things when it deletes the delete command itself... that is being allowed to do whatever you want.