CVE-2023-7346 Ledger比特币应用地址推导漏洞

# Conceptual PoC for demonstrating the vulnerability context # This script checks the version and simulates the logic error scenario # Note: Actual exploitation requires specific miniscript crafting. def check_vulnerability(app_version): # Affected versions are 2.1.0 and 2.1.1 vulnerable_versions = ["2.1.0", "2.1.1"] if app_version in vulnerable_versions: return True return False def simulate_malicious_policy(): # Example of a miniscript policy fragment that might cause issues # The 'a:' fragment handling is the root cause malicious_policy = "a:pk(key)" # Simplified representation print(f"Crafting malicious policy: {malicious_policy}") # In a real scenario, this would be sent to the device return malicious_policy if __name__ == "__main__": version = "2.1.0" if check_vulnerability(version): print(f"Device is vulnerable (Version: {version})") policy = simulate_malicious_policy() print("Attempting to derive address on device...") print("WARNING: Device may display incorrect address!") else: print("Device is not vulnerable.")