UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

Windows Server 2019 must not allow anonymous enumeration of shares.


Overview

Finding ID Version Rule ID IA Controls Severity
V-205724 WN19-SO-000230 SV-205724r569188_rule High
Description
Allowing anonymous logon users (null session connections) to list all account names and enumerate all shared resources can provide a map of potential points to attack the system.
STIG Date
Microsoft Windows Server 2019 Security Technical Implementation Guide 2022-09-06

Details

Check Text ( C-5989r355090_chk )
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: \SYSTEM\CurrentControlSet\Control\Lsa\

Value Name: RestrictAnonymous

Value Type: REG_DWORD
Value: 0x00000001 (1)
Fix Text (F-5989r355091_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Do not allow anonymous enumeration of SAM accounts and shares" to "Enabled".