Powershell File Sharing Permissions Report

Wayne Zimmerman Code

Often I am asked to verify folder permissions for a user in a specific place out on one of our servers. Typically this requires browsing out the folder and putting eyes on the permissions dialog box looking for a group on which the user is a member and then documenting it in the ticket. A very painful long boring process. This is where Powershell comes and saves the day. I wrote a very simple script to bring that information to me. It also gives nice output that I can directly copy into tickets to answer what groups has rights to what shares.

This prompts the user to “Enter a UNC Path” once entered goes and grabs the NTFS permissions as well as the SMB Share permissions

Powershell Code

Write-Host

$path = Read-host “Enter a UNC Path: ”
$pathparts = $path.split("\")
$ComputerName = $pathparts[2]
$ShareName = $pathparts[3]

Write-Host "File Sharing Permissions Report - $path"
Write-Host 

$acl = Get-Acl $path

Write-Host "File/NTFS Permissions"
Write-Host 

foreach($accessRule in $acl.Access)
{
    Write-Host "   " $accessRule.IdentityReference $accessRule.FileSystemRights
}
Write-Host 
Write-Host "Share/SMB Permissions"
Write-Host

    $Share = Get-WmiObject win32_LogicalShareSecuritySetting -Filter "name='$ShareName'" -ComputerName $ComputerName
    if($Share){
        $obj = @()
        $ACLS = $Share.GetSecurityDescriptor().Descriptor.DACL
        foreach($ACL in $ACLS){
            $User = $ACL.Trustee.Name
            if(!($user)){$user = $ACL.Trustee.SID}
            $Domain = $ACL.Trustee.Domain
            switch($ACL.AccessMask)
            {
                2032127 {$Perm = "Full Control"}
                1245631 {$Perm = "Change"}
                1179817 {$Perm = "Read"}
            }
            Write-Host "   $Domain\$user  $Perm"
        }
    }
Write-Host

Example Output

.\Get-Permissions-NTFS-SMB.ps1

Enter a UNC Path: : \\filesrv\Working Groups
File Sharing Permissions Report - \\filesrv\Working Groups

File/NTFS Permissions

    BUILTIN\Administrators FullControl
    DOMAIN\Domain Admins FullControl
    DOMAIN\Domain Users ReadAndExecute, Synchronize
    DOMAIN\Folder - File Server Admins FullControl

Share/SMB Permissions

   DOMAIN\Domain Admins  Full Control
   DOMAIN\Domain Users  Full Control

Wayne Zimmerman