Auto-forwarding email to remote domains must be disabled or restricted.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-33576 | Exch-2-736 | SV-43996r2_rule | Medium |
| Description |
|---|
| Attackers can use automated messages to determine whether a user account is active, in the office, traveling, and so on. An attacker might use this information to conduct future attacks. Ensure Automatic Forwards to remote domains are disabled, except for enterprise mail that must be restricted to forward-only to .mil and .gov. domains. Before enabling this setting first configure a remote domain. |
| STIG | Date |
|---|---|
| Exchange 2010 Edge Transport Server STIG | 2017-01-03 |
Details
| Check Text ( C-41682r6_chk ) |
|---|
| Non- Enterprise Mail Check Content: Open the Exchange Management Shell and enter the following command: Get-RemoteDomain | select identity, AutoForwardEnabled If the value of 'AutoForwardEnabled' is not set to 'False', this is a finding. Enterprise Mail Check Content: If the value of 'AutoForwardEnabled' is set to 'True', this is not a finding. and In the Exchange Management Shell and enter the following command: Get-RemoteDomain If the value of 'RemoteDomain ' is not set to a ' .mil' and/or '.gov ' domain(s), this is a finding. |
| Fix Text (F-37467r3_fix) |
|---|
| Non- Enterprise Mail Fix Text: Open the Exchange Management Shell and enter the following command: Set-RemoteDomain -Identity <'RemoteDomainName'> -AutoForwardEnabled $false Enterprise Mail Fix Text: New-RemoteDomain -Name Set-RemoteDomain -Identity <'RemoteDomainName'> -AutoForwardEnabled $true |