OSEC

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From: Nick Staff (nstaff_at_ANGELSIN.COM)
Date: Sun Jul 28 2002 - 09:16:29 CDT

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    By enabling the 'User Group Policy loopback processing mode' policy in the local security policy of their workstation and setting it to replace, a user can prevent domain user Group Policies from being applied to them.

    To Reproduce:
    - Create a Windows 2000 domain and join a Windows 2000 professional computer to the domain.
    - In Active Directory Users and Computers make a new OU named Restricted and inside the Restricted OU create a user named Test.
    - Link a new Group Policy to the Restricted OU and configure any of the policies under User Configuration.
    - From the Windows 2000 Professional machine log on to the domain as Test and verify the user Group Policy settings are applied.
    - Log off test and log back on locally using the local administrator account.
    - Open the MMC and add the Group Policy snap-in, accepting the default of Local Computer as the focus.
    - Go to Computer Configuration\Administrative Templates\System\Group Policy and enable User Group Policy loopback processing mode, setting it to 'Replace'.
    - Under User Configuration configure policies that conflict with the ones you previously made.
    - Log off and back on as Test and verify the original policies are no longer applied.

    To Fix this:
    Disable the User Group Policy loopback processing mode policy in a Group Policy placed at the Domain or OU level.

    Thanks,
    Nick Staff