CVE-2024-44153 is a vulnerability identified in Apple macOS operating systems prior to versions Sequoia 15 and Sonoma 14.7. The root cause is an improper permissions logic implementation that allows an application with limited privileges (PR:L) running locally (AV:L) to access sensitive user data without requiring user interaction (UI:N). The vulnerability does not allow modification or disruption of data or system availability but compromises confidentiality (C:H, I:N, A:N). The scope is unchanged (S:U), meaning the impact is limited to the privileges of the exploited app and does not extend beyond the current user context. The CVSS v3.1 base score is 5.5, reflecting a medium severity level. The flaw was addressed by Apple through improved permissions logic in the specified macOS updates. No public exploits or active exploitation campaigns have been reported, indicating the vulnerability is not yet widely weaponized. However, the potential for sensitive data exposure makes it a concern for environments where multiple users or untrusted applications coexist. The vulnerability highlights the importance of strict access control enforcement in modern operating systems to protect user privacy and data confidentiality.

The primary impact of CVE-2024-44153 is unauthorized access to sensitive user data by a local application with limited privileges. This can lead to privacy violations, leakage of personal or corporate confidential information, and potential compliance issues for organizations handling sensitive data. Although the vulnerability does not allow data modification or system disruption, the confidentiality breach alone can have significant consequences, especially in regulated industries such as finance, healthcare, and government sectors. Organizations with shared or multi-user macOS environments are particularly at risk, as malicious or compromised apps could exploit this flaw to harvest sensitive data from other users. The absence of required user interaction lowers the barrier for exploitation once local access is obtained, increasing the threat in scenarios involving insider threats or malware that gains foothold on macOS devices. The medium severity rating suggests moderate urgency for patching, but the potential for data exposure warrants prompt remediation to prevent escalation or lateral movement within networks.

To mitigate CVE-2024-44153, organizations should immediately update affected macOS systems to versions Sequoia 15 or Sonoma 14.7 or later, where the vulnerability has been fixed with improved permissions logic. Until patches are applied, restrict installation and execution of untrusted or unnecessary applications, especially those requiring local user privileges. Employ application whitelisting and endpoint protection solutions that monitor and block suspicious local app behavior. Limit local user privileges where possible and enforce strict user account controls to reduce the risk of malicious app execution. Conduct regular audits of installed applications and user permissions to detect anomalies. For environments with sensitive data, consider additional data encryption at rest and in use to minimize exposure if unauthorized access occurs. Educate users about the risks of installing unverified software and maintain robust incident response plans to quickly address potential exploitation attempts. Monitoring for unusual local access patterns or data exfiltration attempts can also help detect exploitation early.