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Remote calls to the Security Account Manager (SAM) must be restricted to Administrators.


Finding ID Version Rule ID IA Controls Severity
V-220933 WN10-SO-000167 SV-220933r877392_rule Medium
The Windows Security Account Manager (SAM) stores users' passwords. Restricting remote rpc connections to the SAM to Administrators helps protect those credentials.
Microsoft Windows 10 Security Technical Implementation Guide 2023-09-29


Check Text ( C-22648r555284_chk )
Windows 10 v1507 LTSB version does not include this setting, it is NA for those systems.

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\

Value Name: RestrictRemoteSAM

Value Type: REG_SZ
Value: O:BAG:BAD:(A;;RC;;;BA)
Fix Text (F-22637r555285_fix)
Navigate to the policy Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Restrict clients allowed to make remote calls to SAM".

Select "Edit Security" to configure the "Security descriptor:".

Add "Administrators" in "Group or user names:" if it is not already listed (this is the default).

Select "Administrators" in "Group or user names:".

Select "Allow" for "Remote Access" in "Permissions for "Administrators".

Click "OK".

The "Security descriptor:" must be populated with "O:BAG:BAD:(A;;RC;;;BA) for the policy to be enforced.