CVE-2024-44252 is a logic vulnerability in Apple’s iOS and iPadOS operating systems that occurs during the restoration of backup files. Specifically, the flaw lies in the file handling logic that processes backup data, allowing an attacker who can provide a maliciously crafted backup file to modify protected system files upon restoration. This can lead to unauthorized changes to critical system components, potentially compromising system integrity and availability. The vulnerability affects multiple Apple platforms, including iOS 17.7.1, iPadOS 17.7.1, iOS 18.1, iPadOS 18.1, tvOS 18.1, and visionOS 2.1, all of which include fixes for this issue. Exploitation requires local access to the device and user interaction to initiate the restore process but does not require prior authentication, making it a significant risk if an attacker can convince a user to restore a malicious backup. The vulnerability has a CVSS 3.1 base score of 7.1, reflecting a high severity level due to the potential for high impact on system integrity and availability. No known exploits have been reported in the wild to date. The root cause is a logic error in file handling, which Apple addressed by improving the file handling mechanisms during backup restoration. This vulnerability highlights the risks associated with restoring backups from untrusted or compromised sources and the importance of secure backup management.

The primary impact of CVE-2024-44252 is the unauthorized modification of protected system files on affected Apple devices, which can lead to system instability, corruption, or persistent malicious control. For organizations, this could mean compromised mobile devices that are critical for business operations, potentially allowing attackers to bypass security controls, disrupt services, or exfiltrate sensitive data. The vulnerability affects a broad range of Apple platforms, increasing the scope of potential impact. Since exploitation requires user interaction to restore a malicious backup, social engineering or insider threats could facilitate attacks. The integrity and availability of devices are at risk, which could undermine trust in mobile device management and enterprise mobility strategies. Although no known exploits are currently in the wild, the vulnerability’s high severity and ease of exploitation with user interaction make it a significant concern for enterprises, government agencies, and individuals relying on Apple mobile ecosystems.

1. Immediately update all affected Apple devices to the latest patched versions: iOS 17.7.1, iPadOS 17.7.1, iOS 18.1, iPadOS 18.1, tvOS 18.1, and visionOS 2.1. 2. Restrict the restoration of backups to only those from trusted and verified sources to prevent malicious backup files from being used. 3. Educate users about the risks of restoring backups from untrusted sources and implement policies to prevent unauthorized backup restorations. 4. Employ mobile device management (MDM) solutions to enforce update compliance and control backup restoration permissions. 5. Monitor device logs and behavior for signs of unauthorized file modifications or unusual restore activities. 6. Consider implementing endpoint detection and response (EDR) tools capable of detecting anomalous file system changes on mobile devices. 7. Regularly audit backup files and their origins to ensure integrity and authenticity before restoration. 8. Limit physical access to devices to reduce the risk of local exploitation. These measures go beyond generic patching by focusing on controlling backup restoration processes and user education to reduce the attack surface.