Windows Server 2019 must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.
An XCCDF Rule
Description
<VulnDiscussion>Using an allowlist provides a configuration management method to allow the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities. The organization must identify authorized software programs and only permit execution of authorized software. The process used to identify software programs that are authorized to execute on organizational information systems is commonly referred to as allowlisting.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-205807r890520_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure an application allowlisting program to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.
Configuration of allowlisting applications will vary by the program. AppLocker is an allowlisting application built into Windows Server.
If AppLocker is used, it is configured through group policy in Computer Configuration >> Windows Settings >> Security Settings >> Application Control Policies >> AppLocker.