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Check: WN10-CC-000130

Microsoft Windows 10 STIG: WN10-CC-000130 (in versions v2 r9 through v2 r5)

Title

Local 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 authorized personnel.

Check Content

This requirement is applicable to domain-joined systems. For standalone or nondomain-joined systems, this is NA. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\System\ Value Name: EnumerateLocalUsers Value Type: REG_DWORD Value: 0

Fix Text

This requirement is applicable to domain-joined systems. For standalone or nondomain-joined systems, this is NA. Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> "Enumerate local users on domain-joined computers" to "Disabled".

Additional Identifiers

Rule ID: SV-220820r857194_rule

Vulnerability ID: V-220820

Group Title: SRG-OS-000095-GPOS-00049

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-000381	The organization configures the information system to provide only essential capabilities.

Controls

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

Number	Title
CM-7	Least Functionality