services / Azure / Bastion Host

Azure Bastion is a managed PaaS jump host deployed in a VNet that brokers secure browser-based RDP/SSH connectivity to VMs without exposing public IPs on those VMs.

A production secure-access entry point into a private network; controlling or observing it affects reachability of all VMs behind it.

Microsoft.​Network/​BastionHosts/​createShareableLinks/​action

Creating shareable URLs mints durable, RBAC-less links granting browser-based access to internal VMs through the Bastion, providing both network movement and a persistent backdoor access path.

Risks

1. Account persistence (BOOST)
2. Network movement (BOOST)

Scope: HIGH

This privilege may grant access to sensitive data from a single organizational function, or allow interruption of a service supporting a single organizational function.

Links