如何通过Powershell获取注册表项的所有权?

时间:2012-08-20 20:12:21

标签: powershell registry acl

我试图通过Powershell获取注册表项的所有权,并且它无声地失败。我正在使用以下代码:

# get the username of the current user
$uname = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name

# create an identity reference for the owner
$user = new-object System.Security.Principal.NTAccount($uname)

# create a "drive" for HKEY_CLASSES_ROOT
new-psdrive -name HKCR_zf -psprovider Registry -root HKEY_CLASSES_ROOT

# change the current location
set-location HCKR_zf:\CLSID

# set ACLs
(get-acl '{E88DCCE0-B7B3-11d1-A9F0-00AA0060FA31}').setowner($user)

一切都运行到最后一行,但.setowner()调用无声地失败(所有者不会更改)。

如何获取注册表项的所有权?

6 个答案:

答案 0 :(得分:4)

有时,脚本没有必要的所有权,权限或权限来更改注册表值。它需要管理员权限。下一个脚本以递归方式为所有子键获取权限。

致电示例:

# group BULTIN\Users takes full control of key and all subkeys
Take-Permissions "HKLM" "SOFTWARE\test"

# group Everyone takes full control of key and all subkeys
Take-Permissions "HKLM" "SOFTWARE\test" "S-1-1-0"

# group Everyone takes full control of key WITHOUT subkeys
Take-Permissions "HKLM" "SOFTWARE\test" "S-1-1-0" $false

你应该定义下一个func:

function Take-Permissions {
    # Developed for PowerShell v4.0
    # Required Admin privileges
    # Links:
    #   http://shrekpoint.blogspot.ru/2012/08/taking-ownership-of-dcom-registry.html
    #   http://www.remkoweijnen.nl/blog/2012/01/16/take-ownership-of-a-registry-key-in-powershell/
    #   https://powertoe.wordpress.com/2010/08/28/controlling-registry-acl-permissions-with-powershell/

    param($rootKey, $key, [System.Security.Principal.SecurityIdentifier]$sid = 'S-1-5-32-545', $recurse = $true)

    switch -regex ($rootKey) {
        'HKCU|HKEY_CURRENT_USER'    { $rootKey = 'CurrentUser' }
        'HKLM|HKEY_LOCAL_MACHINE'   { $rootKey = 'LocalMachine' }
        'HKCR|HKEY_CLASSES_ROOT'    { $rootKey = 'ClassesRoot' }
        'HKCC|HKEY_CURRENT_CONFIG'  { $rootKey = 'CurrentConfig' }
        'HKU|HKEY_USERS'            { $rootKey = 'Users' }
    }

    ### Step 1 - escalate current process's privilege
    # get SeTakeOwnership, SeBackup and SeRestore privileges before executes next lines, script needs Admin privilege
    $import = '[DllImport("ntdll.dll")] public static extern int RtlAdjustPrivilege(ulong a, bool b, bool c, ref bool d);'
    $ntdll = Add-Type -Member $import -Name NtDll -PassThru
    $privileges = @{ SeTakeOwnership = 9; SeBackup =  17; SeRestore = 18 }
    foreach ($i in $privileges.Values) {
        $null = $ntdll::RtlAdjustPrivilege($i, 1, 0, [ref]0)
    }

    function Take-KeyPermissions {
        param($rootKey, $key, $sid, $recurse, $recurseLevel = 0)

        ### Step 2 - get ownerships of key - it works only for current key
        $regKey = [Microsoft.Win32.Registry]::$rootKey.OpenSubKey($key, 'ReadWriteSubTree', 'TakeOwnership')
        $acl = New-Object System.Security.AccessControl.RegistrySecurity
        $acl.SetOwner($sid)
        $regKey.SetAccessControl($acl)

        ### Step 3 - enable inheritance of permissions (not ownership) for current key from parent
        $acl.SetAccessRuleProtection($false, $false)
        $regKey.SetAccessControl($acl)

        ### Step 4 - only for top-level key, change permissions for current key and propagate it for subkeys
        # to enable propagations for subkeys, it needs to execute Steps 2-3 for each subkey (Step 5)
        if ($recurseLevel -eq 0) {
            $regKey = $regKey.OpenSubKey('', 'ReadWriteSubTree', 'ChangePermissions')
            $rule = New-Object System.Security.AccessControl.RegistryAccessRule($sid, 'FullControl', 'ContainerInherit', 'None', 'Allow')
            $acl.ResetAccessRule($rule)
            $regKey.SetAccessControl($acl)
        }

        ### Step 5 - recursively repeat steps 2-5 for subkeys
        if ($recurse) {
            foreach($subKey in $regKey.OpenSubKey('').GetSubKeyNames()) {
                Take-KeyPermissions $rootKey ($key+'\'+$subKey) $sid $recurse ($recurseLevel+1)
            }
        }
    }

    Take-KeyPermissions $rootKey $key $sid $recurse
}

答案 1 :(得分:2)

只是调用SetOwner不会提交更改。您需要将acl对象传递回Set-Acl以提交更改。

查看此主题,有一个很好的描述和完整的示例代码。似乎还有一些其他的箍要跳过:http://social.technet.microsoft.com/Forums/en/winserverpowershell/thread/e718a560-2908-4b91-ad42-d392e7f8f1ad

答案 2 :(得分:1)

使用{E88DCCE0-B7B3-11d1-A9F0-00AA0060FA31}等ID时,您需要使用""

例如:(HKLM:\SOFTWARE\Classes\CLSID\"{031E4825-7B94-4dc3-B131-E946B44C8DD5}",Microsoft.Win32.RegistryKeyPermissionCheck]::ReadWriteSubTree,[System.Security.AccessControl.RegistryRights]::takeownership)

答案 3 :(得分:1)

这是另一篇文章的澄清形式,但它非常重要!

对于最后发布的脚本,请务必添加检查$ key的安全性。否则,您将覆盖特定rootkey中的所有RegKeys。

返回到还原点不起作用,因为计算机帐户不再具有对root rootkey的访问权限。

像: if($ key.length -eq 0){   必须设置write-host"关键参数"   返回 }

答案 4 :(得分:0)

另一个答案的变体。这只会设置所有权。

<#
.SYNOPSIS 
 Give ownership of a file or folder to the specified user.

.DESCRIPTION
 Give the current process the SeTakeOwnershipPrivilege" and "SeRestorePrivilege" rights which allows it
 to reset ownership of an object.  The script will then set the owner to be the specified user.

.PARAMETER Path (Required)
 The path to the object on which you wish to change ownership.  It can be a file or a folder.

.PARAMETER User (Required)
 The user whom you want to be the owner of the specified object.  The user should be in the format
 <domain>\<username>.  Other user formats will not work.  For system accounts, such as System, the user
 should be specified as "NT AUTHORITY\System".  If the domain is missing, the local machine will be assumed.

.PARAMETER Recurse (switch)
 Causes the function to parse through the Path recursively.

.INPUTS
 None. You cannot pipe objects to Take-Ownership

.OUTPUTS
 None

.NOTES
 Name:    Take-Ownership.ps1
 Author:  Jason Eberhardt
 Date:    2017-07-20
#>
function Take-Ownership {
  [CmdletBinding(SupportsShouldProcess=$false)]
  Param([Parameter(Mandatory=$true, ValueFromPipeline=$false)] [ValidateNotNullOrEmpty()] [string]$Path,
        [Parameter(Mandatory=$true, ValueFromPipeline=$false)] [ValidateNotNullOrEmpty()] [string]$User,
        [Parameter(Mandatory=$false, ValueFromPipeline=$false)] [switch]$Recurse)

  Begin {
    $AdjustTokenPrivileges=@"
using System;
using System.Runtime.InteropServices;

  public class TokenManipulator {
    [DllImport("kernel32.dll", ExactSpelling = true)]
      internal static extern IntPtr GetCurrentProcess();

    [DllImport("advapi32.dll", ExactSpelling = true, SetLastError = true)]
      internal static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall, ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);
    [DllImport("advapi32.dll", ExactSpelling = true, SetLastError = true)]
      internal static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);
    [DllImport("advapi32.dll", SetLastError = true)]
      internal static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);

    [StructLayout(LayoutKind.Sequential, Pack = 1)]
    internal struct TokPriv1Luid {
      public int Count;
      public long Luid;
      public int Attr;
    }

    internal const int SE_PRIVILEGE_DISABLED = 0x00000000;
    internal const int SE_PRIVILEGE_ENABLED = 0x00000002;
    internal const int TOKEN_QUERY = 0x00000008;
    internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;

    public static bool AddPrivilege(string privilege) {
      bool retVal;
      TokPriv1Luid tp;
      IntPtr hproc = GetCurrentProcess();
      IntPtr htok = IntPtr.Zero;
      retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);
      tp.Count = 1;
      tp.Luid = 0;
      tp.Attr = SE_PRIVILEGE_ENABLED;
      retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);
      retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);
      return retVal;
    }

    public static bool RemovePrivilege(string privilege) {
      bool retVal;
      TokPriv1Luid tp;
      IntPtr hproc = GetCurrentProcess();
      IntPtr htok = IntPtr.Zero;
      retVal = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);
      tp.Count = 1;
      tp.Luid = 0;
      tp.Attr = SE_PRIVILEGE_DISABLED;
      retVal = LookupPrivilegeValue(null, privilege, ref tp.Luid);
      retVal = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);
      return retVal;
    }
  }
"@
  }

  Process {
    $Item=Get-Item $Path
    Write-Verbose "Giving current process token ownership rights"
    Add-Type $AdjustTokenPrivileges -PassThru > $null
    [void][TokenManipulator]::AddPrivilege("SeTakeOwnershipPrivilege") 
    [void][TokenManipulator]::AddPrivilege("SeRestorePrivilege") 

    # Change ownership
    $Account=$User.Split("\")
    if ($Account.Count -eq 1) { $Account+=$Account[0]; $Account[0]=$env:COMPUTERNAME }
    $Owner=New-Object System.Security.Principal.NTAccount($Account[0],$Account[1])
    Write-Verbose "Change ownership to '$($Account[0])\$($Account[1])'"

    $Provider=$Item.PSProvider.Name
    if ($Item.PSIsContainer) {
      switch ($Provider) {
        "FileSystem" { $ACL=[System.Security.AccessControl.DirectorySecurity]::new() }
        "Registry"   { $ACL=[System.Security.AccessControl.RegistrySecurity]::new()
                       # Get-Item doesn't open the registry in a way that we can write to it.
                       switch ($Item.Name.Split("\")[0]) {
                         "HKEY_CLASSES_ROOT"   { $rootKey=[Microsoft.Win32.Registry]::ClassesRoot; break }
                         "HKEY_LOCAL_MACHINE"  { $rootKey=[Microsoft.Win32.Registry]::LocalMachine; break }
                         "HKEY_CURRENT_USER"   { $rootKey=[Microsoft.Win32.Registry]::CurrentUser; break }
                         "HKEY_USERS"          { $rootKey=[Microsoft.Win32.Registry]::Users; break }
                         "HKEY_CURRENT_CONFIG" { $rootKey=[Microsoft.Win32.Registry]::CurrentConfig; break }
                       }
                       $Key=$Item.Name.Replace(($Item.Name.Split("\")[0]+"\"),"")
                       $Item=$rootKey.OpenSubKey($Key,[Microsoft.Win32.RegistryKeyPermissionCheck]::ReadWriteSubTree,[System.Security.AccessControl.RegistryRights]::TakeOwnership) }
        default { throw "Unknown provider:  $($Item.PSProvider.Name)" }
      }
      $ACL.SetOwner($Owner)
      Write-Verbose "Setting owner on $Path"
      $Item.SetAccessControl($ACL)
      if ($Provider -eq "Registry") { $Item.Close() }

      if ($Recurse.IsPresent) {
        # You can't set ownership on Registry Values
        if ($Provider -eq "Registry") { $Items=Get-ChildItem -Path $Path -Recurse -Force | Where-Object { $_.PSIsContainer } }
        else { $Items=Get-ChildItem -Path $Path -Recurse -Force }
        $Items=@($Items)
        for ($i=0; $i -lt $Items.Count; $i++) {
          switch ($Provider) {
            "FileSystem" { $Item=Get-Item $Items[$i].FullName
                           if ($Item.PSIsContainer) { $ACL=[System.Security.AccessControl.DirectorySecurity]::new() }
                           else { $ACL=[System.Security.AccessControl.FileSecurity]::new() } }
            "Registry"   { $Item=Get-Item $Items[$i].PSPath
                           $ACL=[System.Security.AccessControl.RegistrySecurity]::new()
                           # Get-Item doesn't open the registry in a way that we can write to it.
                           switch ($Item.Name.Split("\")[0]) {
                             "HKEY_CLASSES_ROOT"   { $rootKey=[Microsoft.Win32.Registry]::ClassesRoot; break }
                             "HKEY_LOCAL_MACHINE"  { $rootKey=[Microsoft.Win32.Registry]::LocalMachine; break }
                             "HKEY_CURRENT_USER"   { $rootKey=[Microsoft.Win32.Registry]::CurrentUser; break }
                             "HKEY_USERS"          { $rootKey=[Microsoft.Win32.Registry]::Users; break }
                             "HKEY_CURRENT_CONFIG" { $rootKey=[Microsoft.Win32.Registry]::CurrentConfig; break }
                           }
                           $Key=$Item.Name.Replace(($Item.Name.Split("\")[0]+"\"),"")
                           $Item=$rootKey.OpenSubKey($Key,[Microsoft.Win32.RegistryKeyPermissionCheck]::ReadWriteSubTree,[System.Security.AccessControl.RegistryRights]::TakeOwnership) }
            default { throw "Unknown provider:  $($Item.PSProvider.Name)" }
          }
          $ACL.SetOwner($Owner)
          Write-Verbose "Setting owner on $($Item.Name)"
          $Item.SetAccessControl($ACL)
          if ($Provider -eq "Registry") { $Item.Close() }
        }
      } # Recursion
    }
    else {
      if ($Recurse.IsPresent) { Write-Warning "Object specified is neither a folder nor a registry key.  Recursion is not possible." }
      switch ($Provider) {
        "FileSystem" { $ACL=[System.Security.AccessControl.FileSecurity]::new() }
        "Registry"   { throw "You cannot set ownership on a registry value"  }
        default { throw "Unknown provider:  $($Item.PSProvider.Name)" }
      }
      $ACL.SetOwner($Owner)
      Write-Verbose "Setting owner on $Path"
      $Item.SetAccessControl($ACL)
    }
  }
}

Take-Ownership -Path "Registry::HKCR\CLSID\{0D43FE01-F093-11CF-8940-00A0C9054228}" -User "Administrator" -Recurse -Verbose

答案 5 :(得分:-2)

@Slogmeister和原始作者,我必须说谢谢,我无法得到这种排序。您帮助我做到了,只是一个问题,您能否详细说明其背后的逻辑,即admin之上的权限结构是什么,以致试图获取所有权的管理员将失败(就像在脚本执行之前那样)?同样,涉及哪些子系统,以及在哪里可以了解它们。即,脚本与之交互的方式是什么,以及交互方式和原因:)我知道...但是,重要的是要知道,正如这个小技巧所证明的那样。我基本上是在尝试重新安装SSDT,并且因为某些键不允许它进行更改而失败,以及许多其他软件包,基本上所有与SQL相关的东西。 谢谢工厂,您是否有时间详细阐述...

Registry::HKEY_CLASSES_ROOT\Installer\Components  

那是令人讨厌的钥匙。