STIGQter: STIG Summary: Apple OS X 10.14 (Mojave) Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The macOS system must automatically remove or disable emergency accounts after the crisis is resolved or within 72 hours.

DISA Rule

SV-209532r610285_rule

Vulnerability Number

V-209532

Group Title

SRG-OS-000123-GPOS-00064

Rule Version

AOSX-14-000013

Severity

CAT II

CCI(s)

• CCI-001682 - The information system automatically removes or disables emergency accounts after an organization-defined time period for each type of account.

Weight

10

Fix Recommendation

To remove all "pwpolicy" settings for an emergency account, run the following command, replacing "username" with the correct value:

/usr/bin/sudo /usr/bin/pwpolicy -u username clearaccountpolicies

Otherwise, to change the passcode policy for an emergency account and only remove some policy sections, run the following command to save a copy of the current policy file for the specified username:

/usr/bin/sudo /usr/bin/pwpolicy -u username getaccountpolicies | tail -n +2 > pwpolicy.plist

Open the resulting passcode policy file in a text editor and remove any policyContent sections that would restrict the ability to log in after a certain date or amount of time.

To remove the section cleanly, remove the entire text that begins with <dict>, contains <key>policyContent<'/key>, and ends with </dict>.

After saving the file and exiting to the command prompt, run the following command to load the new policy file:

/usr/bin/sudo /usr/bin/pwpolicy -u username setaccountpolicies pwpolicy.plist

Check Contents

If an emergency account has been created on the system, check the expiration settings of a local account using the following command, replacing "username" with the correct value:

/usr/bin/sudo /usr/bin/pwpolicy -u username getaccountpolicies | tail -n +2

If there is output, verify that the account policies do not restrict the ability to log in after a certain date or amount of time.

If they do, this is a finding.

Vulnerability Number

V-209532

Documentable

False

Rule Version

AOSX-14-000013

Severity Override Guidance

If an emergency account has been created on the system, check the expiration settings of a local account using the following command, replacing "username" with the correct value:

/usr/bin/sudo /usr/bin/pwpolicy -u username getaccountpolicies | tail -n +2

If there is output, verify that the account policies do not restrict the ability to log in after a certain date or amount of time.

If they do, this is a finding.

Check Content Reference

M

Target Key

2930

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