The macOS system must require passwords contain a minimum of one special character.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-259541	SRG-OS-000266-GPOS-00101	APPL-14-003011	SV-259541r1009597_rule	2024-12-04	2

Description
The macOS must be configured to require at least one special character be used when a password is created. Special characters are those characters that are not alphanumeric. Examples include: ~ ! @ # $ % ^ *. 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.

Description

The macOS must be configured to require at least one special character be used when a password is created. Special characters are those characters that are not alphanumeric. Examples include: ~ ! @ # $ % ^ *. 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.

ℹ️ Check
Verify the macOS system is configured to require passwords contain a minimum of one special 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-zA-Z0-9].*){1,}'\''")])' - If the result is not "true", this is a finding.

✔️ Fix
Configure the macOS system to require passwords contain a minimum of one special character by installing the "com.apple.mobiledevice.passwordpolicy" configuration profile.