Windows Server 2019 • Release: 7 Benchmark Date: 05 Jan 2026

CAT II V-205722 WN19-CC-000350

Windows Server 2019 Remote Desktop Services must prevent drive redirection.

Documentable No
Rule ID SV-205722r1137695_rule
CCI References
CCI-001090

Discussion

Preventing users from sharing the local drives on their client computers with Remote Session Hosts that they access helps reduce possible exposure of sensitive data.

Check Procedure

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 NT\Terminal Services\

Value Name: fDisableCdm

Type: REG_DWORD
Value: 0x00000001 (1)

Fix Action

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Device and Resource Redirection >> "Do not allow drive redirection" to "Enabled".