RegistrySecurity 访问被拒绝。 C＃

Question

我目前在编写应用程序以设置某些旧密钥的权限时遇到问题。旧密钥被完全锁定，要在 regedit 中实际修改它们，您必须获得所有权，然后添加自己的完全控制权。当试图在代码中复制它时，我无法获得写入的密钥，并出现错误“访问被拒绝”。示例代码：

RegistrySecurity rs = new RegistrySecurity();
rs.AddAccessRule(new RegistryAccessRule("Administrators", RegistryRights.FullControl, AccessControlType.Allow));
rs.SetOwner(new NTAccount("Administrators"));
return LocalMachine.CreateSubKey(post, RegistryKeyPermissionCheck.ReadWriteSubTree, rs);

任何想法将不胜感激。我也尝试过请求写入权限的 OpenSubKey，但我无法获得密钥。

谢谢大家。

Answer 1

我终于找到了解决办法。您必须使用“ChangePermissions”打开密钥，然后为自己更改权限......然后重新打开具有完全控制权的密钥以更改所有者。 方法如下。

RegistryKey rk = LocalMachine.OpenSubKey(subkey, RegistryKeyPremissionsCheck.ReadWriteSubTree, RegistryRights.ChangePermissions | RegistryRights.ReadKey);//Get the registry key desired with ChangePermissions Rights.
RegistrySecurity rs = new RegistrySecurity();
rs.AddAccessRule(new RegistryAccessRule("Administrator", RegistryRights.FullControl, InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit, PropagationFlags.InheritOnly, AccessControlType.Allow));//Create access rule giving full control to the Administrator user.
rk.SetAccessControl(rs); //Apply the new access rule to this Registry Key.
rk = LocalMachine.OpenSubKey(subkey, RegistryKeyPremissionsCheck.ReadWriteSubTree, RegistryRights.FullControl); // Opens the key again with full control.
rs.SetOwner(new NTAccount("Administrator"));// Set the securitys owner to be Administrator
rk.SetAccessControl(rs);// Set the key with the changed permission so Administrator is now owner.

这对我有用。让我知道它是否适合你:)

如果您没有以管理员身份登录或者您需要其他用户的权限，则显然将管理员更改为其他用户。

Answer 2

当您使用该代码运行您的应用程序时，您是否右键单击该 exe 并选择“以管理员身份运行”？

Answer 3

using System.Security;
using System.Security.AccessControl;
using System.Security.Principal;
using Microsoft.Win32;

首先必须为子键设置一个具有完全访问权限的权限

RegistryKey rkey = LocalMachine.OpenSubKey(_subKey, RegistryKeyPermissionCheck.ReadWriteSubTree, gistryRights.ChangePermissions);
if (rkey == null)
 throw new Exception("Not Open");
//-------
RegistrySecurity _registrySecurity =new RegistrySecurity();//Or rkey.GetAccessControl();
WindowsIdentity _windowsIdentity = System.Security.Principal.WindowsIdentity.GetCurrent();
RegistryAccessRule _accessRule = new RegistryAccessRule(_windowsIdentity.Name, RegistryRights.FullControl, InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.None, AccessControlType.Allow);
_registrySecurity.AddAccessRule(_accessRule);
_registrySecurity.SetAccessRuleProtection(false, true);
 rkey.SetAccessControl(_registrySecurity);

//--------Now, Set owner

_registrySecurity.SetGroup(new NTAccount("Administrators"));  //This is optional
var SID = new System.Security.Principal.NTAccount("XXX\\Users");
_registrySecurity.SetOwner(SID);
rkey.SetAccessControl(_registrySecurity);

XXX：您的帐户名

Answer 4

        RegistryKey rkey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Norton\SecurityStatusSDK", RegistryKeyPermissionCheck.ReadWriteSubTree, RegistryRights.ChangePermissions);
        if (rkey == null)
            throw new Exception("Not Open");
        //-------
        RegistrySecurity _registrySecurity = new RegistrySecurity();//Or rkey.GetAccessControl();
        WindowsIdentity _windowsIdentity = System.Security.Principal.WindowsIdentity.GetCurrent();
        RegistryAccessRule _accessRule = new RegistryAccessRule(_windowsIdentity.Name, RegistryRights.FullControl, InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.None, AccessControlType.Allow);
        _registrySecurity.AddAccessRule(_accessRule);
        _registrySecurity.SetAccessRuleProtection(false, true);
        try
        {
            rkey.SetAccessControl(_registrySecurity);// <---"Attempted to perform an unauthorized operation."
        }
        catch (UnauthorizedAccessException e)
        {

        }

        //--------Now, Set owner

        _registrySecurity.SetGroup(new NTAccount("Administrators"));  //This is optional
        var SID = new System.Security.Principal.NTAccount("XXX\\Users");
        _registrySecurity.SetOwner(SID);
        rkey.SetAccessControl(_registrySecurity);

我安装了 Norton Internet Security

Answer 5

Microsoft Visual Studio 2015（管理员）

_subKey = SOFTWARE\Wow6432Node\Norton

rkey.SetAccessControl(_registrySecurity);->"试图执行未经授权的操作。"`