CVE-2024-40824 is a vulnerability in Apple’s iOS and iPadOS operating systems that allows an application to bypass the privacy preferences set by the user. The root cause is related to improper or flawed state management within the operating system’s privacy enforcement mechanisms. This flaw enables malicious or compromised apps to access sensitive data or system features that should be restricted by privacy settings, thereby violating user consent and security policies. The vulnerability affects all versions prior to iOS 17.6 and iPadOS 17.6, with Apple addressing the issue by improving state management in these updates. The vulnerability also impacts related Apple platforms including macOS Sonoma 14.6, tvOS 17.6, and watchOS 10.6, indicating a systemic issue across Apple’s ecosystem. The CVSS 3.1 base score is 7.7, with vector AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N, meaning the attack requires local access but no privileges or user interaction, and can cause high confidentiality and integrity impacts without affecting availability. No public exploits have been reported yet, but the potential for abuse exists given the sensitive nature of privacy controls. The vulnerability is categorized under CWE-281 (Improper Privilege Management), highlighting a failure to enforce proper access controls. This flaw could be leveraged by malicious apps to circumvent user-imposed restrictions, potentially exposing private user data or enabling unauthorized actions. The fix involves improved state management to ensure privacy preferences are correctly enforced.

The primary impact of CVE-2024-40824 is the unauthorized bypass of user privacy preferences on Apple devices, which can lead to significant confidentiality and integrity breaches. Malicious apps could access sensitive user data such as location, contacts, photos, or microphone without user consent, violating privacy and potentially leading to data theft or surveillance. Integrity impacts include unauthorized modification or misuse of data or system settings that rely on privacy controls. Although availability is not affected, the breach of privacy controls undermines user trust and compliance with data protection regulations. For organizations, this vulnerability could result in exposure of sensitive corporate or personal information, regulatory penalties, and reputational damage. The requirement for local access limits remote exploitation but does not eliminate risk, especially in environments where devices are shared, lost, or physically accessed by attackers. The lack of user interaction or privileges needed for exploitation increases the risk that malicious apps could silently abuse this flaw once installed. Overall, the vulnerability poses a high risk to user privacy and data security on Apple mobile platforms worldwide.

To mitigate CVE-2024-40824, organizations and users should promptly update all affected Apple devices to iOS 17.6, iPadOS 17.6, or later versions, as well as macOS Sonoma 14.6, tvOS 17.6, and watchOS 10.6 where applicable. Beyond patching, organizations should enforce strict app vetting and only allow apps from trusted sources such as the official Apple App Store. Implement Mobile Device Management (MDM) solutions to monitor and restrict app installations and permissions. Regularly audit installed apps for suspicious behavior or excessive permission requests. Employ endpoint security solutions capable of detecting anomalous app activities related to privacy bypass attempts. Educate users about the risks of installing untrusted apps and the importance of applying system updates promptly. For high-security environments, consider additional controls such as disabling local device access for unauthorized personnel and using hardware-based security features like Secure Enclave. Monitoring device logs for unusual access patterns to privacy-sensitive resources can also help detect exploitation attempts early. Finally, maintain an incident response plan that includes steps for addressing potential privacy breaches on Apple devices.