CVE-2024-40675
📋 TL;DR
This vulnerability in Android's Intent parsing allows an attacker to cause an infinite loop through specially crafted input, leading to denial of service. It affects Android devices and requires no user interaction or special privileges for exploitation.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Device becomes completely unresponsive requiring hard reboot, potentially causing data loss or corruption if critical processes are affected.
Likely Case
Individual apps or system components freeze or crash, requiring app restart or device reboot to restore functionality.
If Mitigated
Minimal impact with proper sandboxing and process isolation limiting the scope to individual components.
🎯 Exploit Status
Requires ability to trigger Intent parsing with malicious input, typically through app installation or compromised app.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: October 2024 Android Security Patch or later
Vendor Advisory: https://source.android.com/security/bulletin/2024-10-01
Restart Required: No
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install October 2024 or later security patch. 3. No reboot required for patch application.
🔧 Temporary Workarounds
Restrict app installations
allOnly install apps from trusted sources like Google Play Store to reduce risk of malicious apps exploiting this vulnerability.
🧯 If You Can't Patch
- Implement strict app vetting and only allow installation of trusted applications
- Monitor for app crashes or system freezes that could indicate exploitation attempts
🔍 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 October 2024 or later in Settings > About phone📡 Detection & Monitoring
Log Indicators:
- Excessive ANR (Application Not Responding) logs
- System_server or app process stuck in loops
- Watchdog timeout events
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
source="android_logs" AND (message="ANR" OR message="watchdog" OR message="not responding") AND process="system_server"