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Apple macOS 15 (Sequoia) Security Technical Implementation Guide
SRG-OS-000002-GPOS-00002
The macOS system must automatically remove or disable temporary or emergency user accounts within 72 hours.
The macOS system must automatically remove or disable temporary or emergency user accounts within 72 hours.
An XCCDF Rule
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The macOS system must automatically remove or disable temporary or emergency user accounts within 72 hours.
Medium Severity
<VulnDiscussion>The macOS system can be configured to set an automated termination for 72 hours or less for all temporary or emergency accounts upon account creation. Emergency administrator accounts are privileged accounts established in response to crisis situations where the need for rapid account activation is required. Therefore, emergency account activation may bypass normal account authorization processes. If these accounts are disabled, system maintenance during emergencies may not be possible, thus adversely affecting system availability. Although the ability to create and use emergency administrator accounts is necessary for performing system maintenance during emergencies, these accounts present vulnerabilities to the system if they are not disabled and removed when they are no longer needed. Configuring the macOS to automatically remove or disable emergency accounts within 72 hours of creation mitigates the risks posed if one were to be created and accidentally left active once the crisis is resolved. Emergency administrator accounts are different from infrequently used accounts (i.e., local login accounts used by system administrators when network or normal login is not available). Infrequently used accounts also remain available and are not subject to automatic termination dates. However, an emergency administrator account is normally a different account created for use by vendors or system maintainers. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access mechanisms that meet or exceed access control policy requirements. If temporary or emergency user accounts remain active when no longer needed or for an excessive period, these accounts may be targeted by attackers to gain unauthorized access. To mitigate this risk, automated termination of all temporary or emergency accounts must be set to 72 hours (or less) when the temporary or emergency account is created. If no policy is enforced by a directory service, a password policy can be set with the "pwpolicy" utility. The variable names may vary depending on how the policy was set. If no temporary or emergency accounts are defined on the system, this is not applicable. Satisfies: SRG-OS-000002-GPOS-00002, SRG-OS-000123-GPOS-00064</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>