Encryption must be used for RPC client access.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-33559 | Exch-1-002 | SV-43979r1_rule | Medium |
| Description |
|---|
| This setting controls whether client machines are forced to use secure channels to communicate with the server. If this feature is enabled, clients will only be able to communicate with the server over secure communication channels. Failure to require secure connections to the client access server increases the potential for unintended eavesdropping or data loss. |
| STIG | Date |
|---|---|
| Exchange 2010 Client Access Server STIG | 2017-01-03 |
Details
| Check Text ( C-41665r1_chk ) |
|---|
| Open the Exchange Management Shell and enter the following command: Get-RpcClientAccess | Select Server, EncryptionRequired If the value of 'EncryptionRequired' is not set to 'True', this is a finding. |
| Fix Text (F-37451r1_fix) |
|---|
| Open the Exchange Management Shell and enter the following command: Set-RpcClientAccess -Server <'ServerName'> -EncryptionRequired $true |