CVE-2015-2000
📋 TL;DR
This vulnerability in Jumio SDK for Android allows attackers to execute arbitrary code by exploiting improper pointer handling in a Serializable class's finalize method. It affects Android applications using Jumio SDK versions before 1.5.0 for identity verification. Attackers can potentially gain full control of affected devices.
💻 Affected Systems
- Jumio SDK for Android
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing remote code execution, data theft, and persistent backdoor installation.
Likely Case
Application compromise leading to sensitive data exposure and potential privilege escalation.
If Mitigated
Limited impact with proper sandboxing and minimal permissions, but still significant risk.
🎯 Exploit Status
Exploitation requires crafting malicious serialized objects and understanding native memory layout.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.0 and later
Vendor Advisory: https://support.jumio.com/hc/en-us/articles/360000058694-Jumio-SDK-for-Android-Release-Notes
Restart Required: Yes
Instructions:
1. Update Jumio SDK to version 1.5.0 or later. 2. Rebuild your Android application. 3. Deploy updated application to Google Play Store. 4. Notify users to update their app.
🔧 Temporary Workarounds
Disable Jumio SDK functionality
androidTemporarily disable identity verification features using Jumio SDK
Implement input validation
androidAdd strict validation for all data passed to Jumio SDK components
🧯 If You Can't Patch
- Isolate the application in a restricted environment with minimal permissions
- Implement network segmentation to limit communication with vulnerable components
🔍 How to Verify
Check if Vulnerable:
Check build.gradle or project dependencies for Jumio SDK version below 1.5.0Check Version:
grep -r "jumio" build.gradle or check Android Studio dependenciesVerify Fix Applied:
Verify Jumio SDK version is 1.5.0 or higher in application dependencies📡 Detection & Monitoring
Log Indicators:
- Unusual native library loading
- Suspicious serialization/deserialization patterns
- Unexpected process creation
Network Indicators:
- Unexpected connections to Jumio servers
- Anomalous data transmission patterns
SIEM Query:
process_name:android AND (event_type:library_load OR event_type:process_create) AND suspicious_patterns