The macOS system must require passwords contain a minimum of one lowercase character and one uppercase character.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-259550	SRG-OS-000069-GPOS-00037	APPL-14-003060	SV-259550r1038909_rule	2024-12-04	2

Description
The macOS be configured to require at least one lowercase character and one uppercase character be used when a password is created. This rule enforces password complexity by requiring users to set passwords that are less vulnerable to malicious users. Note: The guidance for password-based authentication in NIST 800-53 (Rev 5) and NIST 800-63B state that complexity rules should be organizationally defined. The values defined are based on common complexity values, but an organization may define its own password complexity rules. Note: The configuration profile generated must be installed from an MDM server. Satisfies: SRG-OS-000069-GPOS-00037,SRG-OS-000070-GPOS-00038

Description

The macOS be configured to require at least one lowercase character and one uppercase character be used when a password is created. This rule enforces password complexity by requiring users to set passwords that are less vulnerable to malicious users. Note: The guidance for password-based authentication in NIST 800-53 (Rev 5) and NIST 800-63B state that complexity rules should be organizationally defined. The values defined are based on common complexity values, but an organization may define its own password complexity rules. Note: The configuration profile generated must be installed from an MDM server. Satisfies: SRG-OS-000069-GPOS-00037,SRG-OS-000070-GPOS-00038

ℹ️ Check
Verify the macOS system is configured to require passwords contain a minimum of one lowercase character and one uppercase character with the following command: /usr/bin/pwpolicy -getaccountpolicies 2> /dev/null \| /usr/bin/tail +2 \| /usr/bin/xmllint --xpath 'boolean(//[contains(text(),"policyAttributePassword matches '\''^(?=.[A-Z])(?=.[a-z])(?=.[0-9]).*$'\''")])' - If the result is not "true", this is a finding.

ℹ️ Check

Verify the macOS system is configured to require passwords contain a minimum of one lowercase character and one uppercase character with the following command: /usr/bin/pwpolicy -getaccountpolicies 2> /dev/null | /usr/bin/tail +2 | /usr/bin/xmllint --xpath 'boolean(//*[contains(text(),"policyAttributePassword matches '\''^(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9]).*$'\''")])' - If the result is not "true", this is a finding.

✔️ Fix
Configure the macOS system to require at least one lowercase character and one uppercase character in password complexity by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile.