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The macOS system must enable System Integrity Protection.


Overview

Finding ID Version Rule ID IA Controls Severity
V-95995 AOSX-14-005001 SV-105133r1_rule Medium
Description
System Integrity Protection (SIP) is vital to the protection of the integrity of macOS. SIP restricts what actions can be performed by administrative users, including root, against protected parts of the operating system. SIP protects all system binaries, including audit tools, from unauthorized access by preventing the modification or deletion of system binaries, or the changing of the permissions associated with those binaries. SIP limits the privileges to change software resident within software libraries to processes that have signed by Apple and have special entitlements to write to system files, such as Apple software updates and Apple installers. By protecting audit binaries, SIP ensures the presence of an audit record generation capability for DoD-defined auditable events for all operating system components and supports on-demand and after-the-fact reporting requirements. Satisfies: SRG-OS-000051-GPOS-00024, SRG-OS-000054-GPOS-00025, SRG-OS-000062-GPOS-00031, SRG-OS-000122-GPOS-00063, SRG-OS-000256-GPOS-00097, SRG-OS-000257-GPOS-00098, SRG-OS-000258-GPOS-00099, SRG-OS-000259-GPOS-00100, SRG-OS-000348-GPOS-00136, SRG-OS-000349-GPOS-00137, SRG-OS-000350-GPOS-00138, SRG-OS-000351-GPOS-00139, SRG-OS-000352-GPOS-00140, SRG-OS-000353-GPOS-00141, SRG-OS-000354-GPOS-00142
STIG Date
Apple OS X 10.14 (Mojave) Security Technical Implementation Guide 2019-07-23

Details

Check Text ( C-94827r1_chk )
System Integrity Protection is a security feature, enabled by default, that protects certain system processes and files from being modified or tampered with. Check the current status of "System Integrity Protection" with the following command:

/usr/bin/csrutil status

If the result does not show the following, this is a finding.

System Integrity Protection status: enabled
Fix Text (F-101665r1_fix)
To reenable "System Integrity Protection", boot the affected system into "Recovery" mode, launch "Terminal" from the "Utilities" menu, and run the following command:

/usr/bin/csrutil enable