Internet connection sharing must be disabled.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-253361 | WN11-CC-000044 | SV-253361r958478_rule | CCI-000381 | medium |
| Description | ||||
| Internet connection sharing makes it possible for an existing internet connection, such as through wireless, to be shared and used by other systems essentially creating a mobile hotspot. This exposes the system sharing the connection to others with potentially malicious purpose. | ||||
| STIG | Date | |||
| Microsoft Windows 11 Security Technical Implementation Guide | 2025-05-15 | |||
Details
Check Text (C-253361r958478_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: \SOFTWARE\Policies\Microsoft\Windows\Network Connections\
Value Name: NC_ShowSharedAccessUI
Type: REG_DWORD
Value: 0x00000000 (0)
Fix Text (F-56764r829166_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Network Connections >> "Prohibit use of Internet Connection Sharing on your DNS domain network" to "Enabled".