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/​disconnectactivesessions/​action

Lets an attacker forcibly terminate another user's active Bastion session, including kicking a legitimate administrator off mid-session, disrupting incident response or ongoing legitimate work.

Risks

1. Denial-of-service (HIGH)

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.

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