What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited the vulnerability could replace Microsoft-shipped code with their own code, which would then be run as root in the context of a Guest Configuration daemon. On an Azure VM with the Guest Configuration Linux Extension installed, this would run in the context of the GC Policy Agent daemon. On an Azure Arc-enabled server, it could run in the context of the GC Arc Service or Extension Service daemons.
Vladimir Abramzon with Microsoft Offensive Research Security Engineering