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Connected users on domain-joined computers must not be enumerated.


Overview

Finding ID Version Rule ID IA Controls Severity
V-36683 WN08-CC-000050 SV-48303r2_rule ECSC-1 Medium
Description
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.
STIG Date
Windows 8/8.1 Security Technical Implementation Guide 2018-02-12

Details

Check Text ( C-44980r1_chk )
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 (F-41437r1_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Logon -> "Do not enumerate connected users on domain-joined computers" to "Enabled".