UseShellExecute=false 时无法提升权限

发布于 2024-09-16 14:19:33 字数 1181 浏览 6 评论 0 原文

我想启动一个具有提升权限但具有隐藏窗口的子进程（实际上是相同的控制台应用程序）。

我执行下一步：

var info = new ProcessStartInfo(Assembly.GetEntryAssembly().Location)
{
    UseShellExecute = true, // !
    Verb = "runas", 
};

var process = new Process
{
    StartInfo = info
};

process.Start();

这有效：

var identity = new WindowsPrincipal(WindowsIdentity.GetCurrent());
identity.IsInRole(WindowsBuiltInRole.Administrator); // returns true

但是 UseShellExecute = true 创建一个新窗口，而且我也无法重定向输出。

因此，当我执行下一步时：

var info = new ProcessStartInfo(Assembly.GetEntryAssembly().Location)
{
    RedirectStandardError = true,
    RedirectStandardOutput = true,
    UseShellExecute = false, // !
    Verb = "runas"
};

var process = new Process
{
    EnableRaisingEvents = true,
    StartInfo = info
};

DataReceivedEventHandler actionWrite = (sender, e) =>
{
    Console.WriteLine(e.Data);
};

process.ErrorDataReceived += actionWrite;
process.OutputDataReceived += actionWrite;

process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
process.WaitForExit();

这不会提升权限，并且上面的代码返回 false。为什么？？

原文

I want to start a child process (indeed the same, console app) with elevated privileges but with hidden window.

I do next:

var info = new ProcessStartInfo(Assembly.GetEntryAssembly().Location)
{
    UseShellExecute = true, // !
    Verb = "runas", 
};

var process = new Process
{
    StartInfo = info
};

process.Start();

and this works:

var identity = new WindowsPrincipal(WindowsIdentity.GetCurrent());
identity.IsInRole(WindowsBuiltInRole.Administrator); // returns true

But UseShellExecute = true creates a new window and I also I can't redirect output.

So when I do next:

var info = new ProcessStartInfo(Assembly.GetEntryAssembly().Location)
{
    RedirectStandardError = true,
    RedirectStandardOutput = true,
    UseShellExecute = false, // !
    Verb = "runas"
};

var process = new Process
{
    EnableRaisingEvents = true,
    StartInfo = info
};

DataReceivedEventHandler actionWrite = (sender, e) =>
{
    Console.WriteLine(e.Data);
};

process.ErrorDataReceived += actionWrite;
process.OutputDataReceived += actionWrite;

process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
process.WaitForExit();

This doesn't elevate privileges and code above returns false. Why??

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爱给你人给你 2024-09-23 14:19:33

ProcessStartInfo.Verb 仅当进程由 ShellExecuteEx() 启动时才有效。这需要 UseShellExecute = true。仅当进程由 CreateProcess() 启动时，重定向 I/O 和隐藏窗口才有效。这需要 UseShellExecute = false。

嗯，这就是为什么它不起作用。不确定禁止启动绕过 UAC 的隐藏进程是否是有意为之。大概。非常可能。

检查此问答< /a> 对于清单，您需要显示 UAC 提升提示。

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要走就滚别墨迹 2024-09-23 14:19:33

就我而言，一旦提升的子进程完成，就可以获取输出。这是我想出的解决方案。它使用一个临时文件：

var output = Path.GetTempFileName();
var process = Process.Start(new ProcessStartInfo
{
    FileName = "cmd",
    Arguments = "/c echo I'm an admin > " + output, // redirect to temp file
    Verb = "runas", // UAC prompt
    UseShellExecute = true,
});
process.WaitForExit();
string res = File.ReadAllText(output);
// do something with the output
File.Delete(output);

In my case, it was ok to get the outputs once the elevated child process is done. Here's the solution I came up. It uses a temporary file :

var output = Path.GetTempFileName();
var process = Process.Start(new ProcessStartInfo
{
    FileName = "cmd",
    Arguments = "/c echo I'm an admin > " + output, // redirect to temp file
    Verb = "runas", // UAC prompt
    UseShellExecute = true,
});
process.WaitForExit();
string res = File.ReadAllText(output);
// do something with the output
File.Delete(output);

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