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Check: WN08-CC-000050

Windows 8/8.1 STIG: WN08-CC-000050 (in versions v1 r23 through v1 r16)

Title

Connected users on domain-joined computers must not be enumerated. (Cat II impact)

Discussion

The username is one part of logon credentials that could be used to gain access to a system. Preventing the enumeration of users limits this information to unauthorized personnel.

Check Content

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows\System\ Value Name: DontEnumerateConnectedUsers Type: REG_DWORD Value: 1

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Logon -> "Do not enumerate connected users on domain-joined computers" to "Enabled".

Additional Identifiers

Rule ID: SV-48303r2_rule

Vulnerability ID: V-36683

Group Title: WN08-CC-000050

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CCIs

CCIs tied to check.

Number	Definition
CCI-000381	Configure the system to provide only organization-defined mission essential capabilities.

Controls

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

Number	Title
CM-7	Least Functionality