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Anonymous access to Named Pipes and Shares must be restricted.


Overview

Finding ID Version Rule ID IA Controls Severity
V-253456 WN11-SO-000165 SV-253456r829452_rule High
Description
Allowing anonymous access to named pipes or shares provides the potential for unauthorized system access. This setting restricts access to those defined in "Network access: Named Pipes that can be accessed anonymously" and "Network access: Shares that can be accessed anonymously", both of which must be blank under other requirements.
STIG Date
Microsoft Windows 11 Security Technical Implementation Guide 2022-08-31

Details

Check Text ( C-56909r829450_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\Services\LanManServer\Parameters\

Value Name: RestrictNullSessAccess

Value Type: REG_DWORD
Value: 1
Fix Text (F-56859r829451_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Restrict anonymous access to Named Pipes and Shares" to "Enabled".