CVE-2023-42831

Vulnerability

CVE-2023-42831 is a privacy vulnerability affecting Apple operating systems. The issue existed in the handling of log entries, where sensitive location information was not properly redacted in log data. This was addressed by removing the vulnerable code. The vulnerability is present in macOS Big Sur 11.7.9, iOS 15.7.8 and iPadOS 15.7.8, macOS Monterey 12.6.8, and macOS Ventura 13.5 [1][2][3][4].

Exploitation

An attacker would need to have an app installed on the target device that can access the system logs. The app must be able to read the unredacted location information that was inadvertently exposed in log entries. No additional privileges or user interaction beyond normal app execution may be required, as the vulnerability is in the system's logging mechanism.

Impact

Successful exploitation allows an app to read sensitive location information, which can be used to fingerprint the user. This is a privacy impact; the attacker gains the ability to track or identify the user based on their location data, potentially without the user's knowledge or consent.

Mitigation

Apple fixed this issue in macOS Big Sur 11.7.9, iOS 15.7.8 and iPadOS 15.7.8, macOS Monterey 12.6.8, and macOS Ventura 13.5, released on July 24, 2023 [1][2][3][4]. Users should update to these versions or later. There is no known workaround; installing the security update is the recommended mitigation.