CVE-2026-33101 Windows Print Spooler权限提升漏洞

#include <windows.h> #include <stdio.h> // Proof of Concept for CVE-2026-33101 // This is a simulation of triggering a Use-After-Free in Print Spooler. // **DO NOT RUN IN PRODUCTION** void TriggerUAF() { HANDLE hPrinter; PRINTER_DEFAULTSA defaults; ZeroMemory(&defaults, sizeof(defaults)); defaults.DesiredAccess = SERVER_ALL_ACCESS; // Simulate opening a printer to interact with the spooler if (!OpenPrinterA("Microsoft Print to PDF", &hPrinter, &defaults)) { printf("Failed to open printer. Error: %d\n", GetLastError()); return; } printf("[+] Printer handle opened: 0x%p\n", hPrinter); // In a real exploit, specific IOCTLs or API calls would be made // to corrupt the heap or trigger the UAF condition. // Example: ClosePrinter(hPrinter); // Free object // Sleep(100); // UseAfterFreeTrigger(hPrinter); // Access freed object ClosePrinter(hPrinter); printf("[+] PoC execution completed.\n"); } int main() { printf("CVE-2026-33101 PoC Trigger\n"); TriggerUAF(); return 0; }