The macOS system must restrict the ability of individuals to use USB storage devices.

From Apple OS X 10.13 Security Technical Implementation Guide

Associated with: CCI-000366

SV-96377r1_rule The macOS system must restrict the ability of individuals to use USB storage devices.

Vulnerability discussion

External hard drives, such as USB, must be disabled for users. USB hard drives are a potential vector for malware and can be used to exfiltrate sensitive data if an approved data-loss prevention (DLP) solution is not installed.

Check content

If an approved HBSS DCM/DLP solution is installed, this is not applicable. To verify external USB drives are disabled, run the following command: /usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep -A 3 harddisk-external If the result is not “harddisk-external" = ( eject, alert );”, this is a finding.

Fix text

This setting is enforced using the "Restrictions Policy" configuration profile.

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