The macOS system must disable logon to other user's active and locked sessions.
An XCCDF Rule
Description
<VulnDiscussion>The ability to log in to another user's active or locked session must be disabled. macOS has a privilege that can be granted to any user that will allow that user to unlock active user's sessions. Disabling the admins and/or user's ability to log into another user's active and locked session prevents unauthorized persons from viewing potentially sensitive and/or personal information. Note: Configuring this setting will disable TouchID from unlocking the screensaver.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-259443r943108_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure the macOS system to disable login to other user's active and locked sessions with the following command:
/usr/bin/security authorizationdb write system.login.screensaver "authenticate-session-owner"