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Check: WN16-DC-000070

Microsoft Windows Server 2016 STIG: WN16-DC-000070 (in versions v2 r8 through v1 r1)

Title

Permissions on the Active Directory data files must only allow System and Administrators access. (Cat I impact)

Discussion

Improper access permissions for directory data-related files could allow unauthorized users to read, modify, or delete directory data or audit trails.

Check Content

This applies to domain controllers. It is NA for other systems. Run "Regedit". Navigate to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters". Note the directory locations in the values for: Database log files path DSA Database file By default, they will be \Windows\NTDS. If the locations are different, the following will need to be run for each. Open "Command Prompt (Admin)". Navigate to the NTDS directory (\Windows\NTDS by default). Run "icacls *.*". If the permissions on each file are not as restrictive as the following, this is a finding. NT AUTHORITY\SYSTEM:(I)(F) BUILTIN\Administrators:(I)(F) (I) - permission inherited from parent container (F) - full access

Fix Text

Maintain the permissions on NTDS database and log files as follows: NT AUTHORITY\SYSTEM:(I)(F) BUILTIN\Administrators:(I)(F) (I) - permission inherited from parent container (F) - full access

Additional Identifiers

Rule ID: SV-224970r877392_rule

Vulnerability ID: V-224970

Group Title: SRG-OS-000324-GPOS-00125

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CCIs

CCIs tied to check.

Number	Definition
CCI-002235	The information system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6 (10)	Prohibit Non-Privileged Users From Executing Privileged Functions