SpSoft AppLock (com.sp.protector.free) 7.9.40 for Android allows a local attacker with physical access to bypass fingerprint or PIN authentication. Although the app integrates Android's biometric mechanisms, the lock is implemented with a custom overlay that fails to consistently enforce authentication. By navigating cascading interface flows - insecure navigation through exposed routes facilitates app control evasion {I.N.T.E.R.F.A.C.E] via advertisement or browser intents - an attacker can exit the lock interface without re-authentication and access protected apps (e.g., Chrome). This results in information disclosure and privilege escalation.

PIN Bypass via Overlay in SailingLab AppLock

SailingLab AppLock (aka com.alpha.applock) 4.3.8 for Android allows a local attacker with physical access to bypass the PIN lock. The lock is implemented as an overlay rather than by using Android's secure authentication APIs. By navigating cascading interface flows - insecure navigation through exposed routes facilitates app control evasion {I.N.T.E.R.F.A.C.E] via advertisement or browser intents - an attacker can evade lockscreen verification and access protected apps (e.g., Chrome). This results in information disclosure and privilege escalation.

Local PIN Bypass via Overlay Manipulation in Easyelife App Lock

Easyelife App lock (aka Fingerprint,Applock or locker.app.safe.applocker) 1.9.2 for Android allows a local attacker with physical access to bypass the PIN lock. The lock is implemented as an overlay rather than by using Android's secure authentication APIs. By navigating cascading interface flows - insecure navigation through exposed routes facilitates app control evasion {I.N.T.E.R.F.A.C.E] via advertisement or browser intents - an attacker can evade lockscreen verification and access protected apps (e.g., Chrome), resulting in information disclosure and privilege escalation.

AppLockZ PIN Lock Bypass via Intent Navigation

AppLockZ App Lock and Fingerprint Lock (applock.passwordfingerprint.applockz) 4.2.11 for Android allows a local attacker with physical access to bypass the PIN lock. The lock is implemented as an overlay rather than by using Android's secure authentication APIs. By navigating cascading interface flows - insecure navigation through exposed routes facilitates app control evasion {I.N.T.E.R.F.A.C.E] via advertisement or browser intents, an attacker can evade lockscreen verification and access protected apps (e.g., Chrome). This results in information disclosure and privilege escalation.

Android AppLock JavaScript Injection Enabling Local Code Execution

SailingLab AppLock (aka com.alpha.applock) 4.3.8 for Android allows a local attacker to trigger arbitrary JavaScript execution via BrowserMainActivity, which accepts VIEW intents with javascript: URIs. This unsafe navigation path results in script execution and may allow UI spoofing or privilege escalation.