CVE-2024-0041
📋 TL;DR
This CVE describes a race condition vulnerability in Android's SystemStatusAnimationSchedulerImpl.kt that could allow local privilege escalation without user interaction. The flaw fails to properly remove persistent dots, potentially enabling attackers to gain elevated privileges on affected devices. This affects Android devices running vulnerable versions.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
An attacker could gain elevated system privileges, potentially compromising the entire device, accessing sensitive data, or installing persistent malware.
Likely Case
Local privilege escalation allowing unauthorized access to system resources or user data that would normally be restricted.
If Mitigated
With proper patching, the vulnerability is eliminated; with proper access controls, impact is limited to the compromised user context.
🎯 Exploit Status
Exploitation requires triggering a race condition, which can be challenging but feasible with careful timing. No user interaction needed once the condition is triggered.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android February 2024 security patch or later
Vendor Advisory: https://source.android.com/security/bulletin/2024-02-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install the February 2024 Android security patch. 3. Restart the device after installation completes.
🔧 Temporary Workarounds
Disable unnecessary system animations
androidReduce attack surface by disabling non-essential system animations that might trigger the vulnerable code path
adb shell settings put global window_animation_scale 0
adb shell settings put global transition_animation_scale 0
adb shell settings put global animator_duration_scale 0
🧯 If You Can't Patch
- Restrict physical access to devices and implement strict app installation policies
- Monitor for unusual privilege escalation attempts using Android security logging
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level: Settings > About phone > Android version > Security patch level. If before February 2024, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows February 2024 or later. Check that system animations function normally without crashes.📡 Detection & Monitoring
Log Indicators:
- Unexpected privilege escalation attempts in system logs
- Crashes or errors in SystemStatusAnimationScheduler
- Multiple rapid calls to removePersistentDot method
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
source="android_system_logs" AND (event="privilege_escalation" OR process="SystemStatusAnimationScheduler")🔗 References
- https://android.googlesource.com/platform/frameworks/base/+/d6f7188773409c8f5ad5fc7d3eea5b1751439e26
- https://source.android.com/security/bulletin/2024-02-01
- https://android.googlesource.com/platform/frameworks/base/+/d6f7188773409c8f5ad5fc7d3eea5b1751439e26
- https://source.android.com/security/bulletin/2024-02-01
