CVE-2024-49744
📋 TL;DR
This vulnerability in Android's AccountManagerService allows local attackers to bypass parcel mismatch mitigations through unsafe deserialization, potentially leading to privilege escalation. User interaction is required for exploitation. Affects Android devices with vulnerable versions of the AccountManagerService component.
💻 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
Local attacker gains elevated system privileges, potentially compromising device integrity and accessing sensitive user data.
Likely Case
Malicious app exploits user interaction to gain additional permissions beyond its initial scope.
If Mitigated
With proper app sandboxing and minimal permissions, impact limited to app's sandbox.
🎯 Exploit Status
Requires user interaction and local access. Exploit involves crafting malicious intents to trigger unsafe deserialization.
🛠️ 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. Apply January 2025 security patch or later. 3. Verify patch installation in Settings > About phone > Android security patch level.
🔧 Temporary Workarounds
Restrict app installations
allOnly install apps from trusted sources like Google Play Store
Minimize app permissions
allReview and restrict app permissions in Settings > Apps
🧯 If You Can't Patch
- Isolate vulnerable devices from sensitive networks and data
- Implement mobile device management (MDM) with strict app control policies
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android security patch level. If earlier than January 2025, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Android security patch level shows January 2025 or later date.📡 Detection & Monitoring
Log Indicators:
- Unusual AccountManagerService errors
- Permission escalation attempts in system logs
Network Indicators:
- Not applicable - local exploitation only
SIEM Query:
Not applicable for typical SIEM monitoring of mobile devices