CVE-2019-10069
📋 TL;DR
CVE-2019-10069 is a critical deserialization vulnerability in Godot game engine that allows remote attackers to execute arbitrary code by exploiting improper deserialization policy enforcement. This affects all users running Godot applications that process untrusted data, particularly in networked multiplayer games or applications loading external resources.
💻 Affected Systems
- Godot Engine
📦 What is this software?
Godot by Godotengine
Godot by Godotengine
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining full control over the affected system, potentially leading to data theft, ransomware deployment, or lateral movement within networks.
Likely Case
Remote code execution in Godot-based applications, allowing attackers to compromise game servers, steal user data, or manipulate game logic.
If Mitigated
Limited impact with proper network segmentation and input validation, potentially reduced to denial of service or application crashes.
🎯 Exploit Status
The vulnerability is in the core deserialization mechanism, making exploitation relatively straightforward for attackers with knowledge of Godot's serialization format.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Godot 3.1.1 and later
Vendor Advisory: https://godotengine.org/news
Restart Required: Yes
Instructions:
1. Download Godot 3.1.1 or later from godotengine.org. 2. Replace existing Godot installation. 3. Recompile/export all Godot projects with the updated engine. 4. Redeploy applications to production.
🔧 Temporary Workarounds
Disable network serialization
allDisable or restrict use of Godot's built-in network serialization features
Input validation and sanitization
allImplement strict validation of all serialized data before processing
🧯 If You Can't Patch
- Network segmentation: Isolate Godot applications from critical systems and the internet
- Application firewalls: Implement WAF rules to block suspicious serialized data patterns
🔍 How to Verify
Check if Vulnerable:
Check Godot version: If version is 3.1 or earlier, the system is vulnerable. Also check if application uses Godot's serialization features.Check Version:
Run Godot executable with --version flag or check project.godot file for engine_versionVerify Fix Applied:
Verify Godot version is 3.1.1 or later and that applications have been recompiled with the patched engine.📡 Detection & Monitoring
Log Indicators:
- Unusual serialization errors
- Unexpected process spawns from Godot applications
- Memory access violations in Godot processes
Network Indicators:
- Suspicious serialized data patterns in network traffic to Godot applications
- Unexpected outbound connections from Godot processes
SIEM Query:
process_name:"godot*" AND (event_type:process_creation OR event_type:memory_violation)