Orchestrating Least Privilege

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What is an Orchestrator?

What is an Orchestra?

SWARM

Job of a Conductor

- Casting - Assign sheet music - Unify performers - Set the tempo

Job of an Orchestrator

- Node management - Task assignment - Cluster state reconciliation - Resource Management

What is a Least Privilege Orchestrator?

What is Least Privilege?

A process must be able to access only the information and resources that are necessary for its legitimate purpose.

Principle of Least Privilege

An Orchestrator that follows the principle of least privilege in the

strictest manner possible.Least Privilege Orchestrator

Why Least Privilege?

Cluster

Internet

Cluster

Internet

A

M

M M

AA A

M

M M

WW W

M

M M

WW W

How far away are we right now?

How do we achieve Least Privilege Orchestration?

Mitigating External Attacker

web: image: web-app expose: 443 links: - redis redis: image: redis

Mitigating Internal Network Attacker

[ { "permission": { "method": "GET", "resource": "/user" }, "allow": ["web", "fulfillment", "payments"] },

{ "permission": { "method": "POST", "resource": "/user" }, "allow": ["signup", "web"] },

{ "permission": { "method": "DELETE", "resource": "/user/.*" }, "allow": ["web"] }]

Mitigating MiTM Attacker

rails-app: image: rails-app links: - mysql mysql: image: mysql

MTLS

Mitigating Malicious Worker

Push

Worker

Manager

WorkerWorker

Mitigating Malicious Manager

Worker

Manager

WorkerWorker

web: image: web-app expose: 443 links: - redis tls-auth: - OU: api-client redis: image: redis

web: image: web-app expose: 443 links: web:

image: web-app expose: 443 links:

web: image: web-app expose: 443 links:

SWARM

Mutual TLS by default

• First node generates a new self-signed CA.

Mutual TLS by default

• New nodes can get a certificate issued w/ a token.

Mutual TLS by default

• Workers and managers identified by their certificate.

Mutual TLS by default

• Communications secured with Mutual TLS.

Secrets

Secrets

Secrets

External APP

Thank you