CVE-2022-32881

Vulnerability

CVE-2022-32881 is a logic issue in the file system restriction enforcement across Apple platforms. The bug affects macOS Big Sur 11.7, macOS Monterey 12.6, macOS Ventura 13, iOS 16, watchOS 9, and tvOS 16 [1][2][3]. An app may bypass protections and modify protected parts of the file system. The issue was addressed with improved restrictions in the respective versions released on September 12, 2022 (iOS 16, watchOS 9, macOS Big Sur 11.7, macOS Monterey 12.6, tvOS 16) and October 24, 2022 (macOS Ventura 13).

Exploitation

An attacker would need the ability to install and run a malicious app on the target device. No other special network position or authentication beyond what is required to install an app is described in the available references. The exact exploitation steps are not publicly detailed by Apple; however, the logic flaw likely allows the app to bypass file system sandbox restrictions to write to areas normally protected.

Impact

A successful exploit allows an app to modify protected parts of the file system, potentially leading to unauthorized data alteration, privilege escalation, or further compromise of the device. The impact is limited to file system modification; the disclosure does not indicate arbitrary code execution or remote exploitation.

Mitigation

Apple released fixes in macOS Big Sur 11.7, macOS Monterey 12.6, macOS Ventura 13, iOS 16, watchOS 9, and tvOS 16 [1][2][3]. Users should update their devices to the latest available software versions. No workarounds are provided. The vulnerability is not listed on the CISA KEV.