Title

The macOS system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. (Cat II impact)

Discussion

Preventing nonprivileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Nonprivileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from nonprivileged users.

Check Content

Verify the macOS system is configured to require authentication to access all system-level preference panes with the following commands: /usr/bin/sudo /usr/bin/security authorizationdb read system.preferences | /usr/bin/grep -A1 shared <key>shared</key> <false/> If the "shared" key is not set to "false", this is a finding.

Fix Text

Configure the macOS system to require authentication to access all system-level preference panes with the following actions: Copy the authorization database to a file: /usr/bin/sudo /usr/bin/security authorizationdb read system.preferences > ~/Desktop/authdb.txt Edit the "shared" section of the file: <key>shared</key> <false/> Reload the authorization database: /usr/bin/sudo /usr/bin/security authorizationdb write system.preferences < ~/Desktop/authdb.txt

Additional Identifiers

Rule ID: SV-257776r922883_rule

Vulnerability ID: V-257776

Group Title: SRG-OS-000324-GPOS-00125

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.