I'm building a PowerShell script that requires local administrator rights on the server it's run on and I would need to check that the user has those rights.
The problem is that the user might not be directly in the local Administrators group, but in a domain group that's in the local group and has the permissions that way. Then again the local Administrators group might have several domain groups as members.
Is there a way to "simply" check whether the user has local admin rights or not without going through Get-ADGroupMember for all the nested domain groups in Administrators or so?
edit: For example, one option could be a simple command that returns "Access denied" if the user is not local admin, but such a command that would be "safe" to execute just for this purpose.
I found this approach, which is quite lovely, on Garrett Serack's Git repository.
If ( ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] "Administrator"))
{"You're a wizard Harry!"
#DoAdminThingsHere
}
ELSE{"Not an Admin!"}
Seems to get the job done. It determines the current permission level of the user using .net types.
Related
imagine there is a Powershell script running under the SYSTEM account on a Windows 10 machine and checks which domain user is currently logged on. No big deal.
Now: I want to check if this logged on user has administrator rights on this machine. Every check I could find so far is only looking at ".IsInRole([Security.Principal.WindowsBuiltInRole]::'Administrator')".
But this only checks if the user is a direct member of the local group "Administrators". But it is possible that within the local Administrators group there is a domain group, and the user is a member of this domain group instead. So he is admin, even if he is not a direct member of the Administrators group.
How can I check for both at the same time? I just want to check IF someone is admin, no matter where those admin rights come from. This check will also run under the SYSTEM account, not with the affected user account itself.
Any ideas?
If the Domain group is part of the local admins group, then by design, all users in that domain group are local admins and has all the rights and privileges that means. So, that code block would still apply.
You have to explicitly check for user rights and privileges assigned. There is no cmdlet for this built-in, so you have to code for it. To see your rights and privs, you can just use the good old whoami.exe...
whoami /priv
# Results
<#
PRIVILEGES INFORMATION
----------------------
Privilege Name Description State
============================= ==================================== ========
SeShutdownPrivilege Shut down the system Disabled
SeChangeNotifyPrivilege Bypass traverse checking Enabled
SeUndockPrivilege Remove computer from docking station Disabled
SeIncreaseWorkingSetPrivilege Increase a process working set Disabled
SeTimeZonePrivilege Change the time zone Disabled
#>
... then compare that to the Windows Privilege list that are normally used for Administration actions.
Running this remotely as the logged-on user, cannot be done with PowerShell natively, it's a Windows Security boundary and thus, you'll need something like PSExec.exe from MS SysInternals to try that.
I need to check if a specific domain user is a member of a local administrators group.
I prefer to use Powershell, but the problem is that we are not allowing WinRM so I can't use PSRemoting, so I can't run Get-LocalGroupMember or something.
Thanks alot for your help.
I recommend you to have a look on PowerView. Get-NetLocalGroup queries the information via WinNT provider or on demand via WinAPI.
Refer to harmj0y's blog for more information.
I am upgrading Collaborative lifecycle management version to 6.0.5 current version is 5.0.2. As specified in IBM Interactive upgrade guide one of the step is to run upgrade script on your databases and below are the command
cd D:\IBM\JazzTeamServer6.0.5\server
upgrade\jts\jts_upgrade.bat -oldJTSHome "D:\IBM\JazzTeamServer5.x\server\conf" -updateTomcatFiles no -updateAppServerFiles no
After running this command I am getting message as "Upgrade must be run with administrator rights"
I am logged in as administrative user on the system, assigned all the full access control permission of folder where CLM server is installed to user still everytime same problem persist.
I was going through links to troubleshoot the problem but nothing seems to be working out for me. Some of the links I have referred are
https://www.techsupportall.com/how-to-enable-administrator-account-on-welcome-screen/
http://www.thewindowsclub.com/elevated-privileges-windows
Can anyone please suggest I am missing anything here?
This could be caused by User Account Control, a feature which makes so that, even if you have administrative rights, you don't actually have them unless you explicitly request them. There are two distinct policies governing UAC behaviour (both found in Computer settings\Windows settings\Security settings\Local policies\Security options), one for the built-in Administrator account, and another one for all other administrative users:
User Account Control: Admin Approval Mode for the built-in Administrator account (disabled by default)
User Account Control: Run all administrators in Admin Approval Mode (enabled by default)
What this means is: by default, the built-in Administrator account is not affected by UAC, while all other administrative users are; thus, it's possible for an administrative user (different from the built-it Administrator) to not actually have administrative rights, even if it's a member of the Administrators group.
More info -> https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/dd835564(v=ws.10)
IT admin here, First Question on this site. Online I found a simple Powershell script that manually creates a System Restore Point on a user's PC. I want to deploy this to all company computers via a GPO scheduled task. Script as follows:
Checkpoint-Computer -Description 'System Restore Point' -RestorePointType modify_settings
Script work perfectly fine. Issue is that powershell needs to run as an admin. In scheduled task menu, the option to run with highest privileges only works if the user is a local admin. For security reasons at our company, it will not be possible to grant user's local admin access.
My question, is there some simple commands I can add that will elevate powershell to have admin privileges? Also, have to make sure that the user will not be prompted, and that the rest of the command will still execute. I do not mind having to store username or admin passwords in the script itself as the users will not see the script. I appreciate any suggestions, but only if it is fairly simply to execute. Keep in mind, I am not a programmer, I am a Cisco network engineer as well as a Windows Server admin. My boss just wants me to create manual restore points on a set schedule and I think powershell might be the best. Open to other script types though.
There are 2 parts to your question. The first part is about how to run a scheduled task as a specific user with elevated rights. I don't think it's correct that it's only possible to do so with a local admin account, but that's off-topic for this site. Consider posting that separately on ServerFault (if you do and link it, I will take a look).
The second part concerns embedding credentials into the script.
This is typically a bad idea. Saying that the user "won't" see it is not the same as saying they can't see it. If they can see it, the credential is compromised and essentially that user now can trivially have elevated rights.
So you would need to secure the script file well enough so that the unprivileged user cannot read the file.
Encrypted Credentials
PowerShell also has a [PSCredential] object which stores the password as a secure string. It is possible to store and retrieve an encrypted version of this object.
For example:
$cred = Get-Credential
$cred | Export-CliXml -Path C:\my\cred.xml
The XML file will contain the credential but it will be encrypted. It can only be decrypted by the same user on the same machine that encrypted it to begin with.
This could be a way for you to use a credential if needed. But to be honest it probably isn't.
How I would do this
Run your scheduled task as SYSTEM.
It should be privileged enough to take a restore point
It's local
It's easy to set a scheduled task to run as SYSTEM even through GPO
It requires no password handling
The helpdesk will be using a script I wrote to set out of office replies and to modify folder permissions but are running into permission issues using them. Is there any resource that would indicate what permissions each powershell command in the exchange cmdlet takes to be able to be ran? Failing that does anyone know the specific permissions needed to set OoO and modify folder permissions?
I did find this that gives specific roles needed to do various things but it's not quite what I'm looking for. These roles give access to far more than what we need.
EDIT: The Auto Reply role is all that is required to set allow use of the Set-MailboxAutoReplyConfiguration. Looking into the others still.
That seems to be as granular as the roles get.
If you want to restrict them further, you can set up one or more remote sessions they can connect to that use a delegated account that is an Exchange role member, and constrain the session to just being able to run your script.