Windows Server 2019 Remote Desktop Services must require secure Remote Procedure Call (RPC) communications.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-205636 | WN19-CC-000370 | SV-205636r958408_rule | CCI-000068 | medium |
| Description | ||||
| Allowing unsecure RPC communication exposes the system to man-in-the-middle attacks and data disclosure attacks. A man-in-the-middle attack occurs when an intruder captures packets between a client and server and modifies them before allowing the packets to be exchanged. Usually the attacker will modify the information in the packets in an attempt to cause either the client or server to reveal sensitive information. Satisfies: SRG-OS-000033-GPOS-00014, SRG-OS-000250-GPOS-00093 | ||||
| STIG | Date | |||
| Microsoft Windows Server 2019 Security Technical Implementation Guide | 2025-05-23 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AC-17(2)
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.1.13
1.00
- DISA · 3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000068
1.00
- DISA · 3 · disa_xccdf · related
Details
Check Text (C-205636r958408_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: fEncryptRPCTraffic
Type: REG_DWORD
Value: 0x00000001 (1)
Fix Text (F-5901r354827_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Security >> "Require secure RPC communication" to "Enabled".