CVE-2023-27930

Vulnerability

A type confusion issue exists in the kernel of iOS 16.5 and iPadOS 16.5, watchOS 9.5, tvOS 16.5, and macOS Ventura 13.4. The bug is triggered when an app interacts with a kernel service that fails to properly validate object types. No special configuration is required beyond having the app installed on a vulnerable device. [1][2][3][4]

Exploitation

An attacker must have the ability to run a malicious app on the target system. No additional kernel-level access or user interaction beyond launching the app is required. The app can exploit the type confusion to manipulate kernel memory, leading to arbitrary code execution at the kernel level.

Impact

Successful exploitation allows the attacker to execute arbitrary code with kernel privileges, resulting in full compromise of the operating system. The attacker can gain the highest level of control, potentially accessing any data, modifying system files, or installing further malware. [1][2][3][4]

Mitigation

Apple addressed this issue by improving checks in affected components. The fix was released on May 18, 2023, as part of iOS 16.5, iPadOS 16.5, watchOS 9.5, tvOS 16.5, and macOS Ventura 13.4. Users should update their devices to the latest versions. No workarounds are available. [1][2][3][4]