CVE-2023-32400

Vulnerability

CVE-2023-32400 is a logic flaw in entitlement and privacy permission enforcement across Apple operating systems. The issue exists in the system's permission model where a malicious application may leverage entitlements and privacy permissions that were legitimately granted to a different app, thereby bypassing user consent and Privacy preferences. Affected versions include iOS and iPadOS before 16.5, watchOS before 9.5, macOS Ventura before 13.4, and tvOS before 16.5 [1][2][3][4].

Exploitation

An attacker must first convince the user to install a malicious application on the affected device. Once installed, the malicious app can exploit the flawed permission check to inherit or misuse entitlements and privacy permissions that were granted to a benign app by the user. No additional user interaction is required after installation; the exploitation occurs silently when the malicious app attempts to access privacy-sensitive resources [1][2][3][4].

Impact

A successful exploit allows the malicious app to bypass Privacy preferences, gaining unauthorized access to sensitive data or device capabilities that the user explicitly granted to a different application. This can result in the disclosure of personal information, such as contacts, photos, or location data, without the user's knowledge or consent [1][2][3][4].

Mitigation

Apple has released fixes in iOS 16.5, iPadOS 16.5, watchOS 9.5, macOS Ventura 13.4, and tvOS 16.5, all dated May 18, 2023 [1][2][3][4]. Users should update their devices to the latest available versions. There are no known workarounds for unpatched systems; the only mitigation is applying the security updates.