macOS 15 - Sequoia

The macOS system must disable accounts after 35 days of inactivity

STIG ID: APPL-15-003080 | SRG: SRG-OS-000118-GPOS-00060 | Severity: Medium | CCI: CCI-003627,CCI-003628 | Vulnerability ID: V-268549

Description

The macOS must be configured to disable accounts after 35 days of inactivity.This rule prevents malicious users from employing unused accounts to gain access to the system while avoiding detection.Satisfies: SRG-OS-000118-GPOS-00060, SRG-OS-000590-GPOS-00110

Check

C-268549r1034798_chk

Verify the macOS system is configured to disable accounts after 35 days of inactivity with the following command:/usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath '//dict/key[text()="policyAttributeInactiveDays"]/following-sibling::integer[1]/text()' -If the result is not "35", this is a finding.

Fix

F-72480r1034797_fix

Configure the macOS system to disable accounts after 35 days of inactivity with the following command:This setting may be enforced using local policy.To set local policy to disable an inactive user after 35 days, edit the current password policy to contain the following within the "policyCategoryAuthentication":[source,xml]----policyContentpolicyAttributeLastAuthenticationTime > policyAttributeCurrentTime - (policyAttributeInactiveDays * 24 * 60 * 60)policyIdentifierInactive AccountpolicyParameterspolicyAttributeInactiveDays35----After saving the file and exiting to the command prompt, run the following command to load the new policy file, substituting the path to the file in place of "$pwpolicy_file".[source,bash]----/usr/bin/pwpolicy setaccountpolicies $pwpolicy_file----