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/​getsessionrecordingsasurl/​action

Getting the session-recording SAS URL returns a credential-bearing tokenized storage URL granting direct access to recorded administrative sessions, exfiltrating both the SAS token and the sensitive recordings.

Risks

1. Cryptographic exfiltration (CRITICAL)
2. Logs exfiltration (MEDIUM)

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