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

Anonymous enumeration of Security Account Manager (SAM) accounts must not be allowed.


Overview

Finding ID Version Rule ID IA Controls Severity
V-225045 WN16-SO-000260 SV-225045r569186_rule High
Description
Anonymous enumeration of SAM accounts allows anonymous logon users (null session connections) to list all accounts names, thus providing a list of potential points to attack the system.
STIG Date
Microsoft Windows Server 2016 Security Technical Implementation Guide 2024-02-21

Details

Check Text ( C-26736r466037_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: RestrictAnonymousSAM

Value Type: REG_DWORD
Value: 0x00000001 (1)
Fix Text (F-26724r466038_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" to "Enabled".