Connections to non-domain networks when connected to a domain authenticated network must be blocked.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-220807 | SRG-OS-000480-GPOS-00227 | WN10-CC-000060 | SV-220807r991589_rule | 2025-02-25 | 3 |
| Description |
|---|
| Multiple network connections can provide additional attack vectors to a system and should be limited. When connected to a domain, communication must go through the domain connection. |
| ℹ️ Check |
|---|
| 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\WcmSvc\GroupPolicy\ Value Name: fBlockNonDomain Value Type: REG_DWORD Value: 1 |
| ✔️ Fix |
|---|
| Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Windows Connection Manager >> "Prohibit connection to non-domain networks when connected to domain authenticated network" to "Enabled". |