MacOS has a critical component called the System Integrity Protection, or SIP, which is responsible for protecting the operating system against malware and other threats. It does this by restricting system-level operations – even for users with root privileges – basically preventing unauthorized software from altering specific folders and files in protected areas.
Disabling the SIP normally requires a system restart and booting from macOS recovery, which would require physical access to a compromised machine. However, members of the Microsoft Threat Intelligence team discovered a vulnerability (tracked as CVE-2024-44243 and occasionally reported as ‘Migraine) which bypasses the SIP and allows third-party kernel extensions to load. This flaw could result in severe security implications for all Mac users.
