CVE-2024-49724
📋 TL;DR
This vulnerability allows attackers to bypass Android permission checks through a race condition in AccountManagerService, enabling unauthorized access to protected activities. It requires user interaction but no additional privileges, affecting Android devices with vulnerable versions. Local attackers could escalate privileges on compromised devices.
💻 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
Complete device compromise allowing unauthorized access to sensitive account data and protected system activities
Likely Case
Limited privilege escalation allowing access to specific protected activities without proper authorization
If Mitigated
No impact if patched or proper application sandboxing prevents exploitation
🎯 Exploit Status
Requires race condition exploitation and user interaction; no public exploit details available
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: January 2025 Android Security Patch 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 January 2025 security patch or later. 3. Verify patch installation in Settings > About phone > Android security patch level.
🔧 Temporary Workarounds
Restrict app installations
AndroidPrevent installation of untrusted applications from unknown sources
Settings > Security > Unknown sources (disable)
🧯 If You Can't Patch
- Implement mobile device management (MDM) with strict app whitelisting
- Monitor for suspicious app behavior and account access attempts
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android security patch level. If before January 2025, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Confirm Android security patch level shows January 2025 or later date📡 Detection & Monitoring
Log Indicators:
- Multiple rapid AccountManagerService permission checks
- Unauthorized activity launches from unprivileged contexts
Network Indicators:
- None - local vulnerability only
SIEM Query:
android_logs:AccountManagerService AND (permission_denied OR activity_launch) WITHIN 1s