CVE-2023-40384 is a security vulnerability identified in Apple’s iOS, iPadOS, tvOS, and macOS Sonoma operating systems that allows an application to read sensitive location information due to a permissions issue. The root cause is inadequate redaction of location data, which means that apps could bypass intended privacy controls and access precise or sensitive location details without explicit user consent or proper authorization. This vulnerability was addressed by Apple in the releases of iOS 17, iPadOS 17, tvOS 17, and macOS Sonoma 14, where improved redaction mechanisms were implemented to prevent unauthorized access. The affected versions prior to these updates remain vulnerable. Although no active exploits have been reported in the wild, the nature of the vulnerability makes it a significant privacy concern, as location data can reveal user habits, physical whereabouts, and potentially sensitive operational details. The vulnerability does not require complex exploitation techniques but does require the app to be installed on the device, which means that malicious or compromised apps could leverage this flaw. This vulnerability impacts confidentiality primarily, with potential indirect impacts on integrity and availability if location data is used for further targeted attacks. The lack of a CVSS score necessitates an assessment based on the sensitivity of data exposed and the attack vector. The vulnerability is particularly relevant for organizations and individuals relying on Apple mobile devices, especially in sectors where location privacy is critical.

For European organizations, the exposure of sensitive location information can lead to significant privacy violations and operational risks. Location data can be used to track employee movements, infer business activities, or identify critical infrastructure locations, which could be exploited by threat actors for espionage, targeted attacks, or physical security breaches. Sectors such as government, defense, finance, and critical infrastructure are especially vulnerable due to the strategic value of location intelligence. Additionally, GDPR and other privacy regulations in Europe impose strict requirements on the protection of personal data, including location information; a breach could result in regulatory penalties and reputational damage. The vulnerability could also undermine trust in mobile device security, impacting remote work and mobile workforce strategies. Although exploitation requires app installation, the widespread use of Apple devices in Europe increases the attack surface. The absence of known exploits currently reduces immediate risk but does not eliminate the potential for future abuse.

European organizations should immediately prioritize upgrading all Apple devices to iOS 17, iPadOS 17, tvOS 17, or macOS Sonoma 14 or later versions where the vulnerability is patched. Device management policies should enforce OS version compliance and restrict installation of untrusted or unnecessary applications. Implement strict app vetting procedures, including the use of Mobile Application Management (MAM) solutions to control app permissions and monitor for anomalous access to location services. Educate users about the risks of installing apps from unverified sources and encourage regular review of app permissions, especially location access. Employ endpoint detection and response (EDR) tools capable of monitoring unusual app behavior related to location data access. For highly sensitive environments, consider disabling location services where feasible or using network-level controls to detect and block suspicious data exfiltration. Maintain audit logs of app permissions and location data access to support incident investigations. Finally, stay informed on Apple security advisories and threat intelligence feeds for any emerging exploits related to this vulnerability.