Remote Code Execution (RCE) through an external lookup due to “copybuckets.py“ script in the “splunk_archiver“ application in Splunk Enterprise

In Splunk Enterprise versions below 9.2.2, 9.1.5, and 9.0.10, a low-privileged user that does not hold the admin or power Splunk roles could cause a Remote Code Execution through an external lookup that references the “splunk_archiver“ application.