CVE-2024-43765
📋 TL;DR
CVE-2024-43765 is a tapjacking/overlay vulnerability in Android that allows attackers to trick users into granting folder access permissions through deceptive interface overlays. This could lead to local privilege escalation, affecting Android devices with vulnerable versions. User interaction is required for exploitation.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain unauthorized access to sensitive folders, potentially accessing private data, installing malware, or performing further privilege escalation attacks.
Likely Case
Malicious apps trick users into granting folder permissions they wouldn't normally approve, leading to data exposure or limited system access.
If Mitigated
With proper security controls and user awareness, the risk is reduced to minimal data exposure with limited system impact.
🎯 Exploit Status
Requires user interaction through tapjacking/overlay techniques. Local execution privileges needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android Security Update 2025-01-01 or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-01-01
Restart Required: No
Instructions:
1. Check for Android system updates in Settings > System > System Update. 2. Install the January 2025 security update or later. 3. Verify the update completed successfully.
🔧 Temporary Workarounds
Disable Unknown Sources
AndroidPrevent installation of apps from unknown sources to reduce attack surface
Settings > Security > Install unknown apps > Disable for all apps
Enable Screen Overlay Detection
AndroidUse Android's built-in overlay detection features
Settings > Apps & notifications > Special app access > Display over other apps > Review and restrict permissions
🧯 If You Can't Patch
- Implement application allowlisting to restrict which apps can be installed
- Educate users about tapjacking risks and suspicious permission requests
🔍 How to Verify
Check if Vulnerable:
Check Android version and security patch level in Settings > About phone > Android versionCheck Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows January 2025 or later in Settings > About phone📡 Detection & Monitoring
Log Indicators:
- Unusual permission grants to apps, especially folder access permissions
- Multiple rapid permission requests from same app
Network Indicators:
- Not applicable - local attack only
SIEM Query:
Not applicable for local tapjacking attacks