CVE-2026-32086 Windows Function Discovery服务本地提权漏洞

#include <windows.h> #include <iostream> #include <thread> // PoC Concept for Race Condition in fdwsd.dll // This is a simulation structure for demonstration purposes. // Simulate the vulnerable resource check void CheckResource() { // The service checks if a resource pointer is valid or accessible // Sleep(1); // Simulate processing time creating a window } // Simulate the resource usage void UseResource() { // The service uses the resource here // If an attacker modifies the resource between Check and Use, // the service performs the action on the attacker's controlled resource. } // Attacker thread function trying to win the race void ExploitThread() { while (true) { // Attempt to swap the resource object in memory // This requires precise timing and knowledge of memory layout // // Example: Replace a legitimate file handle with a handle to a sensitive system file // or a malicious DLL path. // ... Race condition logic ... break; } } int main() { std::cout << "Starting PoC simulation for CVE-2026-32086..." << std::endl; // In a real scenario, the attacker would trigger the vulnerable service // while running this thread to race against the service's operations. std::thread t1(ExploitThread); // Simulate the service flow CheckResource(); // UseResource(); t1.join(); std::cout << "PoC simulation finished." << std::endl; return 0; }