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Internet connection sharing must be disabled.


Overview

Finding ID Version Rule ID IA Controls Severity
V-220803 WN10-CC-000044 SV-220803r569187_rule 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
Windows 10 Security Technical Implementation Guide 2021-08-18

Details

Check Text ( C-22518r554894_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-22507r554895_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".