Android Framework Package Installer Permissions Bypass Vulnerability Allowing Local Privilege Escalation

A vulnerability has been identified in the Android Framework's Package Installer component, specifically within the InstallStart.java file. This issue arises from improper input validation, which creates a potential permissions bypass. Exploitation of this vulnerability could lead to local escalation of privileges, allowing a user to gain elevated rights on the device. Notably, this vulnerability requires user interaction for exploitation.

Impact

Exploitation of this vulnerability could result in unauthorized access to elevated privileges, allowing a user to perform actions or access resources that are normally restricted.

Reproduction

To reproduce this vulnerability, manually install an APK that exploits the permissions bypass created by the improper input validation in the Package Installer. During the installation process, user interaction will be required to trigger the exploit.

Remediation

Users can update their devices to the May 2025 security patch level to address this vulnerability.