A vulnerability in Android (versions 8.0, 8.1, 9, and 10) allows a malicious application to manually construct a TYPE_TOAST window and make it clickable. This bypasses intended security restrictions, enabling the attacker to overlay interactive UI elements without requiring additional execution privileges. The vulnerability is tracked as Android ID A-128674520.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository is a proof-of-concept (POC) Android application demonstrating CVE-2020-0014, a vulnerability in the Android Toast system that allows a malicious app to create a clickable Toast overlay. The exploit leverages reflection to modify internal Toast parameters, making the Toast view full-screen and touchable. The custom view (MyTextView) logs touch coordinates, showing that user interactions can be intercepted. The app starts a background service (LoopService) that repeatedly displays the malicious Toast overlay. The exploit targets Android versions 8.0, 8.1, 9, and 10. The repository contains standard Android project files, with the main exploit logic in ClickToast.java, LoopService.java, and MyTextView.java. No network endpoints or external communications are present; the attack is local and requires the user to install and run the app. The exploit demonstrates the feasibility of tapjacking/clickjacking attacks via Toast overlays on vulnerable Android versions.
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