Powershell add domain user to ntfs permission to a file - windows

Im trying to write a script where a part of it take ACL from file and adding specific user ntfs permission to modify:
$identity = "$domain\$adname" #In this example $domain='muzi.local $adname='puzi'
$rights = 'Modify'
$inheritance = 'ContainerInherit, ObjectInherit'
$propagation = 'None'
$type = 'Allow'
$Acl = Get-Acl -Path "$bucketdir\$_" #for this example c:\bla.txt
$Acl.AddAccessRule($ACE) #this is where the error output.
Set-Acl -Path "$bucketdir\$_" -AclObject $Acl #code would not get here
Error output:
Exception calling "AddAccessRule" with "1" argument(s): "No flags can be set.
Parameter name: inheritanceFlags"
At C:\Step2.ps1:26 char:3
$Acl.AddAccessRule($ACE)
~~~~~~~~~~~~~~~~~~~~~~~~
CategoryInfo : NotSpecified: (:) [], MethodInvocationException
FullyQualifiedErrorId : ArgumentException
Looks like the arguments aren't passing to the function, but if I output them one by one it looks fine

I think you simply forgot to create the new access rule, but also, since you're changing the ACL of a File, not a Directory, you should use the constructor for the new rule which has only 3 parameters, since a file does not have child objects to propagate or inherit access rights:
$identity = "$domain\$adname" #In this example $domain='muzi.local $adname='puzi'
$rights = 'Modify'
$type = 'Allow'
# these do not apply for a File (it has no child objects)
# $inheritance = 'ContainerInherit, ObjectInherit'
# $propagation = 'None'
$file = "$bucketdir\$_" #for this example c:\bla.txt
# create the new AccessRule
$rule = [System.Security.AccessControl.FileSystemAccessRule]::new($identity, $rights, $type)
$Acl = Get-Acl -Path $file
$Acl.AddAccessRule($rule)
Set-Acl -Path $file -ACLObject $Acl

Related

assign more users to folder on powershell

everyone please help me, I need a command to assign permissions to a folder in the directory tree, conditional on the correct directory name to be assigned. I am trying to write a command line but when assigning a group or a user, it can be assigned but other users are removed, I want to not remove any users.
$mypath = "D:\KIEM TRA1"
$myacl = Get-Acl $mypath
$myaclentry = "EMC0\test.ktnb","readandexecute,write","Allow"
$myaccessrule = New-Object System.Security.AccessControl.FileSystemAccessRule($myaclentry)
$myacl.SetAccessRule($myaccessrule)
Get-ChildItem -Path "$mypath" -Recurse -Force |
Where-Object { $_.Name -eq 'A' -or $_.Name -eq 'B' } |
Set-Acl -AclObject $myacl -Verbose
I want to do it on a subdirectory and not remove the existing user
I guess what you need is to create a new access rule using 5 parameters, so you can handle inheritance and propagation too.
Try this (always on a set of test folders first of course..)
$mypath = "D:\KIEM TRA1"
$account = "EMC0\test.ktnb"
# see: https://learn.microsoft.com/en-us/dotnet/api/system.security.accesscontrol.filesystemrights
# https://learn.microsoft.com/en-us/dotnet/api/system.security.accesscontrol.inheritanceflags
# https://learn.microsoft.com/en-us/dotnet/api/system.security.accesscontrol.propagationflags
$rule = [System.Security.AccessControl.FileSystemAccessRule]::new($account, "Modify", "ContainerInherit,ObjectInherit", "None", "Allow")
# on older PowerShell versions use:
# $rule = New-Object System.Security.AccessControl.FileSystemAccessRule($account, "Modify", "ContainerInherit,ObjectInherit", "None", "Allow")
# get a list of folder FullNames of subfolders with name 'A' or 'B'
$folders = (Get-ChildItem -Path $mypath -Directory -Recurse | Where-Object { $_.Name -match '^[AB]$' }).FullName
foreach ($directory in $folders) {
# get the current ACL of the folder
$acl = Get-Acl -Path $directory
# add the new rule to the ACL
$acl.AddAccessRule($rule)
$acl | Set-Acl -Path $directory -Verbose
}
Note:
Instead of AddAccessRule(), you might prefer SetAccessRule().
AddAccessRule
This method will add this access rule to the ACL.
If a user has Modify permission and we use AddAccessRule() to create a new rule with Read permission the user will still also have Modify permissions.
SetAccessRule
This method removes any existing access an replaces that access with the specified rule.
If a user has Modify permission and a new rule is created using SetAccessRule() specifying Read permission, that user will now only have Read permission.

Invalid Argument When Trying To Set File Permissions In Powershell

So I'm running a script that creates folders from a list of usernames in a CSV and in those folders it creates a folder called "Documents" and I'm then trying to give "modify" access rights to the "Documents" folder for the user concerned - eg a folder is created for john.smith, inside that folder is a "Documents" folder, and the user john.smith gets modify access rights to that "Documents" folder.
Creating the folders works without a hitch, it's the access rights part that is giving me a headache - it returns an Invalid Argument error for the last line of the code below and I can't figure out why - any help would be appreciated.
$Location = "C:\Scripts"
Set-Location $Location
$Folders = Import-Csv "C:\Scripts\UserFolderList.csv"
ForEach ($Folder in $Folders)
{
#Create A Folder From The "Name" Column In The CSV Then Create A Subfolder Called Documents
New-Item $Folder.Name -ItemType Directory
$Docs = "Documents"
$DocsPath = Join-Path $Folder.Name $Docs
New-Item -Path $DocsPath -ItemType Directory
#Assign The Modify Permission For The Username To The Documents Folder
$Domain = "tly"
$DomainUser = $Domain + $Folder.Name
$FullDocsPath = "$Location" + $Folder.Name + "$Docs"
$Acl = Get-Acl $FullDocsPath
$ArgumentList="$DomainUser","Modify","ContainerInherit,ObjectInherit","None","Allow"
$AccessRule = New-Object System.Security.AccessControl.FileSystemAccessRule ($ArgumentList)
$Acl.SetAccessRule($AccessRule)
Set-Acl -path $FullDocsPath -aclObject $AccessRule
}
The resulting error is:
Set-Acl : AclObject
At line:22 char:1
Set-Acl -path $FullDocsPath -aclObject $AccessRule
CategoryInfo : InvalidArgument: (System.Security...ystemAccessRule:FileSystemAccessRule) [Set-Acl], ArgumentException
FullyQualifiedErrorId : SetAcl_AclObject,Microsoft.PowerShell.Commands.SetAclCommand

Powershell Windows ACL

We are running the script mentioned below to change a heap of ACL permissions which needs to be down to the file level as we are migrating from one environment to another.
The script below is working for folders/subfolders but appears to fail when it comes to the actual files themselves.
$items = get-childitem \\file.location.com.au\project\people\user1 -recurse | select-object -property fullname
Foreach ($item in $items) {
# Get the ACL for an existing folder
$existingAcl = Get-Acl -Path '$item'
# Set the permissions that you want to apply to the folder
$permissions = 'SERVER\USER1', 'Read,Modify', 'ContainerInherit,ObjectInherit', 'None', 'Allow'
# Create a new FileSystemAccessRule object
$rule = New-Object -TypeName System.Security.AccessControl.FileSystemAccessRule -ArgumentList $permissions
# Modify the existing ACL to include the new rule
$existingAcl.SetAccessRule($rule)
# Apply the modified access rule to the folder
$existingAcl | Set-Acl -Path '$ITEM'
}
As you can see we are getting the below error and im unsure why. Is someone able to see what im missing?
I have spent a lot of time with no progress on rectifying this issue.
At line:14 char:1
+ $existingAcl.SetAccessRule($rule)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
Get-Acl : Cannot find path '$item' because it does not exist.
At line:5 char:16
+ $existingAcl = Get-Acl -Path '$item'
+ ~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (:) [Get-Acl], ItemNotFoundException
+ FullyQualifiedErrorId : GetAcl_PathNotFound_Exception,Microsoft.PowerShell.Commands.GetAcl
Command
You cannot call a method on a null-valued expression.
This should put you on the right track:
$items = get-childitem \\file.location.com.au\project\people\user1 -recurse | select-object -property fullname
# Set the permissions that you want to apply to the folder
$permissions = 'SERVER\User1', 'Read,Modify', 'Allow'
# Create a new FileSystemAccessRule object
$newaccessrule = New-Object -TypeName System.Security.AccessControl.FileSystemAccessRule -ArgumentList $permissions
Foreach ($item in $items) {
# Get the ACL for an existing folder
$existingAcl = Get-Acl -Path $item.FullName
# Modify the existing ACL to include the new rule
$existingAcl.SetAccessRule($newaccessrule)
$existingAcl.SetAccessRuleProtection($false,$true)
# Apply the modified access rule to the folder
Set-Acl -Path $item.FullName -AclObject $existingAcl
}

Auditing Success and Failure event to folder

I'm using PowerShell to add users to auditing for folders in Windows 10.
I'm using this code to set "EVERYONE" for Auditing.
But I need to do special rules for fail and special rules for Success and Fail, so I need it to save in 2 different lines. - like this picture:
This is the code I'm using:
$Folders = "C:\windows\system32\config"
Foreach ($Folder in $Folders) {
Write-Host "" # Empty line
Write-Host "Applying Auditing for folder", $Folder
Write-Host "" # Empty line
$ACL = Get-Acl $Folder
# Set Auditing for Success event for above Folders for EVeryone group
$PermAudited = "CreateFiles"
$AccessRule = New-Object System.Security.AccessControl.FileSystemAuditRule("Everyone", $PermAudited, "Failure")
$ACL.SetAuditRule($AccessRule)
# Set Auditing for Success event for Top folder
Write-Host $Folder, "for auditing Success event"
$ACL | Set-Acl $Folder
}
You can Specify those rules using the System.Security.AccessControl.FileSystemRights enum, Check the available rules like this:
[enum]::GetNames([System.Security.AccessControl.FileSystemRights])
Basically you need to take a look on one of the Constructors for the FileSystemAuditRule to understand how you need to set it, for your needs I think this is the right one:
FileSystemAuditRule(
string identity,
FileSystemRights fileSystemRights,
AuditFlags flags
)
So, you need to set Rights and AuditFlags, based on your example it should be something like this:
$Rights = "ReadAndExecute","Modify"
$Flags = "Failure"
$AccessRights = [System.Security.AccessControl.FileSystemRights]$Rights
$AuditFlags = [System.Security.AccessControl.AuditFlags]$Flags
Then Set the ACL like this:
$ACL = Get-Acl $Folder
$AccessRule = New-Object System.Security.AccessControl.FileSystemAuditRule("Everyone",$AccessRights, $AuditFlags)
$ACL.SetAuditRule($AccessRule)
Set-Acl -Path $Folder -AclObject $ACL

How can I use powershell 4.0 set-acl to allow the user to have the same security settings in newly created subdirectories?

When I set user access via set-acl I can loop through all existing subfolders. How do I set it to include future subfolders created under the main folder?
Also... Once the access is set it only displays in 'Advanced' settings for the folders. The first security screen shows the user but shows no access rights.
This is in Windows Server 2012 R2.
$SubFolder = "name"
$UserName = "domain\" + $SubFolder
$Folder = "R:\User Files\" + $SubFolder + "\"
$Acl = Get-Acl $Folder
$Ar = New-Object system.security.accesscontrol.filesystemaccessrule($UserName,"FullControl","Allow")
$Acl.SetAccessRule($Ar)
#Get-Variable
Set-Acl -Path $Folder -AclObject $Acl
$Folder = Get-childItem $Folder
foreach ($TempFolder in $Folder)
{
$Folder = $TempFolder.FullName
$Acl = Get-Acl $Folder
$Ar = New-Object system.security.accesscontrol.filesystemaccessrule($UserName,"FullControl","Allow")
$Acl.SetAccessRule($Ar)
#Get-Variable
Set-Acl -Path $Folder -AclObject $Acl
}
You will need to set your Inheritance and Propagation flags in order for it to affect files and folders within your target. Here's my typical template that I use when I'm working on setting up new ACLs for users:
$Rights = [System.Security.AccessControl.FileSystemRights]"FullControl"
$InheritanceFlag = [System.Security.AccessControl.InheritanceFlags]"ObjectInherit,ContainerInherit"
$PropagationFlag = [System.Security.AccessControl.PropagationFlags]::None
$objType =[System.Security.AccessControl.AccessControlType]::Allow
#Define the user's account using their samAccountName
$objUser = New-Object System.Security.Principal.NTAccount("samAccountName")
$objACE = New-Object System.Security.AccessControl.FileSystemAccessRule($objUser, $Rights, $InheritanceFlag, $PropagationFlag, $objType)
$objACL = Get-ACL "C:\Temp"
$objACL.AddAccessRule($objACE)
Set-ACL "C:\Temp" $objACL
The settings here will make future things inherit the settings that you define for the target folder.

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