Misconfigured PowerShell Execution Settings
TLDR: Misconfigured PowerShell execution settings occur when execution policies or permissions are improperly implemented, allowing unauthorized or unsafe scripts to run. Common issues include setting execution policies to `Unrestricted`, failing to validate script authenticity, and enabling execution on unmanaged devices. Properly configuring execution settings ensures secure and controlled use of PowerShell for scripting and automation.
https://en.wikipedia.org/wiki/PowerShell
A typical misconfigured PowerShell execution setting involves setting the execution policy to `Unrestricted` or `Bypass`, allowing unsigned or potentially malicious scripts to execute without validation. This creates a significant risk of malware execution or unauthorized access to system resources. Another issue is failing to enforce secure practices like requiring `RemoteSigned` for scripts downloaded from external sources, leaving the environment open to phishing or injection attacks. Tools like `Get-ExecutionPolicy` and `Set-ExecutionPolicy` allow administrators to inspect and configure these settings.
To secure PowerShell execution settings, administrators should enforce restrictive policies like `AllSigned` or `RemoteSigned`, ensuring that only signed scripts from trusted sources are allowed to run. Enabling logging features like Script Block Logging and integrating with Microsoft Defender for Endpoint provides visibility into script execution and potential threats. Regular audits and adherence to CIS Benchmarks ensure alignment with security best practices, minimizing the risks associated with misconfigured execution settings.