Microsoft Windows Server 2025

Windows Server 2025 Remote Desktop Services must prevent drive redirection

STIG ID: WN25-CC-000350 | SRG: SRG-OS-000138-GPOS-00069 | Severity: Medium | CCI: CCI-001090 | Vulnerability ID: V-278113

Description

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

C-82643r1181043_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 NT\Terminal Services\

Value Name: fDisableCdm

Type: REG_DWORD
Value: 0x00000001 (1)

Fix

F-82548r1181044_fix

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".