Check: WN11-SO-000167
Microsoft Windows 11 STIG:
WN11-SO-000167
(in versions v1 r6 through v1 r1)
Title
Remote calls to the Security Account Manager (SAM) must be restricted to Administrators. (Cat II impact)
Discussion
The Windows Security Account Manager (SAM) stores users' passwords. Restricting remote rpc connections to the SAM to Administrators helps protect those credentials.
Check Content
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: RestrictRemoteSAM Value Type: REG_SZ Value: O:BAG:BAD:(A;;RC;;;BA)
Fix Text
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.
Additional Identifiers
Rule ID: SV-253457r877392_rule
Vulnerability ID: V-253457
Group Title: SRG-OS-000324-GPOS-00125
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-002205 |
The information system uniquely identifies and authenticates source by organization, system, application, and/or individual for information transfer. |
| CCI-002235 |
The information system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. |