Exchange local machine policy must require signed scripts.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-259664 | SRG-APP-000131 | EX19-MB-000061 | SV-259664r1015275_rule | 2025-05-14 | 2 |
Description
Scripts often provide a way for attackers to infiltrate a system, especially scripts downloaded from untrusted locations. By setting machine policy to prevent unauthorized script executions, unanticipated system impacts can be avoided. Failure to allow only signed remote scripts reduces the attack vector vulnerabilities from unsigned remote scripts.
ℹ️ Check
Open the Exchange Management Shell and enter the following command:
Get-ExecutionPolicy
If the value returned is not "RemoteSigned", this is a finding.
✔️ Fix
Open the Exchange Management Shell and enter the following command:
Set-ExecutionPolicy RemoteSigned