Anonymous access to Named Pipes and Shares must be restricted.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-220932 | WN10-SO-000165 | SV-220932r958524_rule | CCI-001090 | 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 10 Security Technical Implementation Guide | 2025-02-25 | |||
Details
Check Text (C-220932r958524_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-22636r555282_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".