CVE-2024-44250: macOS Sequoia Privilege Escalation Vulnerability

CVE-2024-44250 is a vulnerability affecting macOS Sequoia 15.1. It’s a permission issue that allows a malicious application to bypass its designated sandbox and execute arbitrary code with elevated privileges. This means an attacker could potentially gain unauthorized access to sensitive data, modify system settings, or even take complete control of the affected system. The vulnerability was disclosed and patched by Apple in macOS Sequoia 15.1. Successful exploitation could lead to significant compromise of the targeted macOS system, granting the attacker capabilities beyond those intended for the application. Defenders should prioritize patching and monitor for suspicious application behavior.

Attack Chain

1. A user installs a seemingly benign application (e.g., from a compromised software repository or via social engineering).
2. The application, designed to exploit CVE-2024-44250, attempts to perform an action requiring elevated privileges.
3. Due to the permission issue, the application bypasses the sandbox restrictions.
4. The application executes arbitrary code with the gained elevated privileges.
5. The attacker gains unauthorized access to sensitive data, such as user credentials or financial information.
6. The attacker modifies system settings, potentially disabling security features or installing persistent backdoors.
7. The attacker escalates privileges further, potentially gaining root access to the system.
8. The attacker can now execute any command, install malware, or exfiltrate data without restrictions, leading to a full system compromise.

Impact

Successful exploitation of CVE-2024-44250 can lead to arbitrary code execution with elevated privileges on macOS Sequoia 15.1 systems. This could lead to sensitive data theft, system modification, or complete system takeover. While the exact number of affected users is not specified, all users of macOS Sequoia prior to version 15.1 are potentially vulnerable. The affected sectors include any organization or individual using vulnerable macOS systems. If successful, this exploit could give attackers complete control of macOS endpoints.

Recommendation

• Upgrade to macOS Sequoia 15.1 or later to patch CVE-2024-44250, as indicated in the overview.
• Implement application allowlisting to prevent the execution of unauthorized or untrusted applications, mitigating exploitation attempts.
• Monitor process creation events for unusual parent-child process relationships indicative of privilege escalation, using a detection rule similar to those provided below.
• Enable and review system integrity protection (SIP) logs to detect attempts to bypass security restrictions.