CVE-2023-32376

Vulnerability

This vulnerability resides in the entitlement validation mechanism across Apple operating systems. Affected versions include iOS and iPadOS prior to 16.5, watchOS prior to 9.5, tvOS prior to 16.5, and macOS Ventura prior to 13.4. An app could bypass entitlement checks, allowing it to modify protected parts of the file system [1][2][3][4].

Exploitation

An attacker must have a malicious app installed on the target device. No additional user interaction beyond installation is required; the app can directly exploit the flaw to gain unauthorized write access to protected file system areas.

Impact

Successful exploitation enables an app to modify protected parts of the file system, potentially leading to data corruption, privilege escalation, or bypassing system-level protections.

Mitigation

Apple addressed this issue with improved entitlements in iOS 16.5, iPadOS 16.5, watchOS 9.5, tvOS 16.5, and macOS Ventura 13.4, all released on May 18, 2023 [1][2][3][4]. No workaround is available; users should update their devices to the latest versions.