CVE-2017-13310
📋 TL;DR
CVE-2017-13310 is a serialization vulnerability in Android's ViewPager component that allows malicious apps to bypass permission checks and start activities with system privileges. This enables local privilege escalation without user interaction. All Android devices running vulnerable versions are affected.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise where a malicious app gains system-level privileges, allowing installation of persistent malware, data theft, and full device control.
Likely Case
Malicious app escalates privileges to perform unauthorized actions like accessing protected data, modifying system settings, or installing additional malware.
If Mitigated
With proper app sandboxing and security updates, impact is limited to isolated app compromise without broader system access.
🎯 Exploit Status
Exploitation requires a malicious app to be installed on the device. No user interaction needed once app is installed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android Security Bulletin May 2018 and later
Vendor Advisory: https://source.android.com/security/bulletin/2018-05-01
Restart Required: Yes
Instructions:
1. Apply Android security updates from May 2018 or later. 2. Update to Android 8.1 or newer if possible. 3. For OEM devices, check manufacturer for specific update availability.
🔧 Temporary Workarounds
Disable unknown sources
androidPrevent installation of apps from unknown sources to reduce attack surface
Settings > Security > Unknown sources (disable)
Use Google Play Protect
androidEnable Google's built-in malware scanning for installed apps
Settings > Google > Security > Google Play Protect (enable)
🧯 If You Can't Patch
- Restrict app installations to trusted sources only (Google Play Store)
- Implement mobile device management (MDM) with app whitelisting
🔍 How to Verify
Check if Vulnerable:
Check Android version: Settings > About phone > Android version. If version is 8.0 or earlier, device is vulnerable.Check Version:
adb shell getprop ro.build.version.releaseVerify Fix Applied:
Verify Android security patch level is May 2018 or later: Settings > About phone > Android security patch level.📡 Detection & Monitoring
Log Indicators:
- Unusual system privilege requests from apps
- Suspicious activity starting with system permissions
Network Indicators:
- None - this is a local exploit
SIEM Query:
Look for apps requesting elevated system privileges without proper authorization in Android logs