Can't execute powershell script function using PHPs shell_exec - php

Question

I'm trying to pass arguments from a PHP page's POST request into a powershell script.
This is the relevant PHP snippet:
$selectedPartner = $_POST['partner'];
$selectedGroup = $_POST['group'];
$script = "C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe AddRemPartners";
if (isset($_POST['partner']) && isset($_POST['group'])){
if (isset($_POST['AddButton']) && $selectedPartner !== "Select Partner" && $selectedGroup !== "Select Group") {
echo "<br>";
echo "Adding " . $selectedPartner . " to " . $selectedGroup . "...<br>";
$cmd = $script . " -Add $selectedPartner $selectedGroup";
echo "command is:<br>" . $cmd;
shell_exec($cmd);
//shell_exec('C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe C:\\xampp\\htdocs\\admin\\AddRemPartners.ps1 -Add $selectedPartner //$selectedGroup');
//$command = shell_exec('C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe telnet 10.11.14.32 4444');
//echo "User added successfully!";
}
if (isset($_POST['RemoveButton']) && $selectedPartner !== "Select Partner" && $selectedGroup !== "Select Group") {
echo "<br>";
//echo "selection was REMOVE";
}
}
And this is my powershell script:
Param([switch]$Add, [switch]$Remove, [string]$User, [string]$Group)
$secpasswd = ConvertTo-SecureString "P#sSw0rd" -AsPlainText -Force
$creds = New-Object System.Management.Automation.PSCredential ("userPortal", $secpasswd)
$server = "host.fqdn"
function AddRemPartners
{
if ($Add){
Write-Host "Add var = $Add"
Write-Host "Add was selected"
Add-ADGroupMember -Server $server -Credential $creds -Identity $Group -Member $User
}
if ($Remove) {
Write-Host "Remove var = $Remove"
Write-Host "Remove was selected"
Remove-ADGroupMember -Server $server -Credential $creds -Identity "$Group" -Member "$User" -Confirm:$false
}
}
AddRemPartners -Add $Add -Remove $Remove -User $User -Group $Group
Things I know:
The php post parameters are good. I captured the request in burpsuit and know that all the correct args are getting sent
The resultant ps query that is built is also good. I output it to the screen and it looks like this:
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe AddRemPartners -Add Dude1 Dude1Group
No network issues. If I run the above command directly from within PowerShell is executes correctly.
I've sourced my script using . .\AddRemPartners.ps1 so I can call my function directly as such:
PS > AddRemPartners -Add User Group
PS > AddRemPartners -Remove User Group
I've narrowed it down to this: I can't execute my ps script from cmd like this:
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe AddRemPartners -Add User Group
As that errors out with this:
AddRemPartners : The term 'AddRemPartners' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the
name, or if a path was included, verify that the path is correct and try again.
I believe this to be suspect/culpable since I need run that in PHP. So PHP is probably running into the same issue. So why won't cmd recognize my script if I call powershell at the same time as execution?
Any tips and guidance greatly appreciated. I'm at wits end unfortunately. :/

Answer 1

First parameter for PS should be full path of script. Then you should respect parameter definition of PS, on command line as in the script.
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\whereis\AddRemPartners.ps1 -Add -user User -group Group
First line of the script should be parameter definition and defaults.
param([string]$user, [string]$group, [switch]$Add, ...);