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CCE
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CCE-44496-8

Platform: cpe:/o:microsoft:windows_server_2016Date: (C)2017-08-03   (M)2023-07-14



Specifies whether a Remote Desktop Session Host server requires secure RPC communication with all clients or allows unsecured communication. You can use this setting to strengthen the security of RPC communication with clients by allowing only authenticated and encrypted requests. If the status is set to Enabled, Remote Desktop Services accepts requests from RPC clients that support secure requests, and does not allow unsecured communication with untrusted clients. If the status is set to Disabled, Remote Desktop Services always requests security for all RPC traffic. However, unsecured communication is allowed for RPC clients that do not respond to the request. If the status is set to Not Configured, unsecured communication is allowed. Note: The RPC interface is used for administering and configuring Remote Desktop Services. Vulnerability: Disabling this setting can compromise security as unsecured communication is allowed for RPC clients that do not respond to security requests. Counter Measure: Enable this setting. Potential Impact: Remote Desktop Services does not allow unsecured communication. Fix: (1) GPO: Computer ConfigurationAdministrative TemplatesWindows ComponentsRemote Desktop ServicesRemote Desktop Session HostSecurityRequire secure RPC communication (2) REG: HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindows NTTerminal Services!fEncryptRPCTraffic


Parameter:

[enable/disable]


Technical Mechanism:

(1) GPO: Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Security\Require secure RPC communication (2) REG: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services!fEncryptRPCTraffic

CCSS Severity:CCSS Metrics:
CCSS Score : 8.6Attack Vector: NETWORK
Exploit Score: 3.9Attack Complexity: LOW
Impact Score: 4.7Privileges Required: NONE
Severity: HIGHUser Interaction: NONE
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:LScope: UNCHANGED
 Confidentiality: HIGH
 Integrity: LOW
 Availability: LOW
  

References:
Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:40326


OVAL    1
oval:org.secpod.oval:def:40326
XCCDF    5
xccdf_org.secpod_benchmark_SecPod_Windows_Server_2016
xccdf_org.secpod_benchmark_PCI_3_2_Windows_Server_2016
xccdf_org.secpod_benchmark_HIPAA_45CFR_164_Windows_Server_2016
xccdf_org.secpod_benchmark_general_Windows_Server_2016
...

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