CVE-2024-44267 is a vulnerability identified in Apple macOS where a malicious application with high privileges can modify protected parts of the file system due to insufficient validation checks. This flaw was addressed by Apple through improved verification mechanisms in macOS Ventura 13.7.1 and macOS Sonoma 14.7.1. The vulnerability does not require user interaction but does require that the attacker already has elevated privileges (PR:H), which limits the attack vector primarily to scenarios where an attacker has gained or been granted high-level access on the system. The CVSS score of 2.7 reflects the low severity, as the impact is limited to integrity (I:L) without affecting confidentiality or availability. The vulnerability could allow unauthorized modification of critical system files, potentially enabling persistence or further privilege escalation. However, no known exploits have been reported in the wild, indicating limited active threat at this time. The vulnerability affects unspecified versions of macOS prior to the patched releases, so organizations running older versions are at risk. The fix involves applying the updated macOS versions that include enhanced checks to prevent unauthorized file system modifications.

For European organizations, the primary impact is the potential for integrity compromise of macOS systems if a malicious application with high privileges exploits this vulnerability. This could lead to unauthorized changes in critical system files, potentially undermining system stability, security controls, or enabling further malicious activities such as persistence or privilege escalation. While confidentiality and availability are not directly impacted, the integrity breach could indirectly affect operational security and trustworthiness of affected systems. Organizations relying on macOS for critical infrastructure, development, or business operations could face increased risk if systems remain unpatched. The requirement for high privileges reduces the likelihood of widespread exploitation but does not eliminate risk from insider threats or attackers who have already compromised lower-level access. Given the widespread use of macOS in certain European countries and sectors, unpatched systems could be targeted in targeted attacks or supply chain compromises.

1. Immediately update all macOS systems to macOS Ventura 13.7.1, macOS Sonoma 14.7.1, or later versions that include the patch for CVE-2024-44267. 2. Enforce the principle of least privilege by restricting application and user privileges to the minimum necessary, reducing the chance that a malicious app can gain high-level access. 3. Implement application whitelisting and endpoint protection solutions that monitor and block unauthorized modifications to protected file system areas. 4. Conduct regular audits of system integrity and file system changes to detect suspicious activity early. 5. Educate users and administrators about the risks of installing untrusted applications and the importance of privilege management. 6. Employ network segmentation and access controls to limit the spread and impact of any compromise on macOS systems. 7. Monitor security advisories from Apple and cybersecurity sources to stay informed about any emerging exploits or additional patches.