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Security: heyisula/synapse

SECURITY.md

Security Policy

Reporting Vulnerabilities

We take the security of the SYNAPSE Healthcare Robot project seriously. If you discover a security vulnerability, please help us protect our users by reporting it responsibly.

How to Report a Security Vulnerability

DO NOT create a public GitHub issue for security vulnerabilities.

Instead, please report security issues privately using one of the following methods:

  1. Email: Send details to isulacodes@gmail.com

    • Subject line: [SECURITY] SYNAPSE Vulnerability Report
    • Include "SECURITY" in the subject to ensure priority handling
  2. GitHub Security Advisories: Use GitHub's private vulnerability reporting feature

    • Navigate to the Security tab
    • Click "Report a vulnerability"

What to Include in Your Report

To help us understand and address the issue quickly, please include:

  • Description: Clear explanation of the vulnerability
  • Impact: Potential consequences if exploited
  • Steps to Reproduce: Detailed instructions to replicate the issue
  • Affected Components: Specific hardware/software modules involved
  • Severity Assessment: Your evaluation of the risk level
  • Proof of Concept: Code snippets or demonstrations (if applicable)
  • Suggested Fix: Your recommendations for remediation (optional)

Response Timeline

  • Initial Response: Within 72 hours of report submission
  • Status Update: Weekly updates on investigation progress
  • Resolution Target: 30-90 days depending on severity
  • Public Disclosure: Coordinated disclosure after patch is available

Severity Classification

We use the following classification for vulnerabilities:

  • Critical: Remote code execution, patient data exposure, physical harm risk
  • High: Privilege escalation, unauthorized access, sensor manipulation
  • Medium: Information disclosure, denial of service
  • Low: Minor information leaks, configuration issues

Recognition

We appreciate security researchers who help improve SYNAPSE. Contributors who report valid vulnerabilities will be:

  • Acknowledged in our security advisories (unless anonymity is requested)
  • Listed in our CONTRIBUTORS.md file
  • Invited to test fixes before public release

Security Considerations

Healthcare-Specific Security Concerns

1. Patient Data Protection

Current Status:

  • This is an educational prototype - not designed for production medical environments
  • No patient data storage or cloud transmission capabilities in current version
  • All sensor readings (heart rate, SpO2) are processed locally and displayed only

Security Measures:

  • Vital signs data is not logged or transmitted
  • No patient identification or tracking mechanisms
  • Memory cleared on power cycle

Future Considerations:

  • If patient data features are added, HIPAA compliance will be required
  • End-to-end encryption for any data transmission
  • Secure authentication for authorized personnel only
  • Audit logging for all patient data access

2. Physical Safety Systems

Critical Safety Features:

  • Hardware Emergency Stop: Physical button directly connected to motor controller

    • Independent of software systems
    • Cannot be overridden programmatically
    • Immediate power cutoff to all motors
  • Collision Avoidance:

    • 360° ultrasonic sensor coverage
    • Automatic braking within <1 second response time
    • Safe distance maintenance (1-2 meters in following mode)
  • Fail-Safe Mechanisms:

    • Low battery automatic shutdown
    • Sensor failure detection with safe mode activation
    • Watchdog timer to detect system freezes

Known Physical Risks:

  • Maximum speed of 0.5 m/s may still pose collision risk in crowded areas
  • Mecanum wheels can slip on wet surfaces
  • Sensor blind spots in extreme lighting conditions

3. Network Security

Current Implementation:

  • WiFi capability for future remote monitoring (not yet implemented)
  • Bluetooth for potential mobile app integration (planned)
  • No internet connectivity in current prototype

Security Requirements for Network Features:

  • WiFi Security:

    • WPA3 encryption mandatory
    • Hospital network isolation (separate VLAN recommended)
    • No default credentials - unique passwords required
    • MAC address filtering support
  • Bluetooth Security:

    • Pairing authentication required
    • Encrypted connections only
    • Limited to authorized devices
    • Automatic timeout after inactivity
  • Communication Protocols:

    • UART between ESP32 modules uses simple command structure
    • No authentication on inter-module communication (physical security assumed)
    • Future versions should implement message signing

Recommendations for Deployment:

  • Deploy on isolated network segment
  • Implement firewall rules for device communication
  • Regular security audits of network traffic
  • Disable unused communication interfaces

4. Firmware Security

Current Protections:

  • Source code available for security review (open source)
  • No over-the-air (OTA) update capability (prevents remote attacks)

Vulnerabilities:

  • Physical access allows firmware reprogramming
  • No secure boot implementation
  • No code signing verification

Recommended Improvements:

  • Implement secure boot on ESP32 modules
  • Add encrypted firmware updates
  • Code signing for all firmware releases
  • Tamper detection on device enclosure

5. Sensor Integrity

Critical Sensors:

  • MAX30102 Pulse Oximeter: Medical-grade accuracy required
  • Ultrasonic Sensors: Safety-critical for collision avoidance
  • MPU-6050 IMU: Navigation stability depends on accuracy

Potential Attack Vectors:

  • Sensor spoofing through electromagnetic interference
  • Physical tampering with sensor connections
  • Malicious sensor data injection

Mitigation:

  • Sensor data validation and range checking
  • Redundant sensors for critical functions
  • Anomaly detection algorithms
  • Physical security of sensor mounting

Known Limitations

Prototype Status

This is an educational prototype and NOT approved for clinical use.

Current Development Stage

  • Status: Active development / proof of concept
  • Testing: Laboratory and controlled environment only
  • Validation: No clinical trials or medical device testing performed
  • Compliance: Not certified for medical device regulations

What This Means

Acceptable Uses:

  • Educational demonstrations
  • Research and development
  • Proof of concept testing
  • Academic projects
  • Robotics competitions

NOT Approved For:

  • Patient care in hospitals
  • Medical treatment assistance
  • Handling regulated medical equipment
  • Transporting controlled substances
  • Unsupervised operation in public spaces

Certification Requirements

Before deployment in real healthcare settings, the following certifications and approvals are required:

Medical Device Regulations

United States:

  • FDA 510(k) premarket notification for Class II medical devices
  • Compliance with FDA 21 CFR Part 820 (Quality System Regulation)
  • Risk management per ISO 14971

European Union:

  • CE marking under Medical Device Regulation (MDR) 2017/745
  • Classification as medical device Class I or IIa (depending on functions)
  • Technical documentation and clinical evaluation

Other Regions:

  • Health Canada Medical Device License
  • TGA (Australia) conformity assessment
  • PMDA (Japan) approval process

Safety Standards

  • IEC 60601-1: Medical electrical equipment safety
  • ISO 13482: Safety requirements for personal care robots
  • IEC 62304: Medical device software lifecycle process

There aren’t any published security advisories