Infrastructure security in App Mesh
As a managed service, App Mesh is protected by the AWS global network security
procedures that are described in the Amazon Web Services:
Overview of Security Processes
You use AWS published API calls to access App Mesh through the network. Clients must support Transport Layer Security (TLS) 1.0 or later. We recommend TLS 1.2 or later. Clients must also support cipher suites with perfect forward secrecy (PFS) such as Ephemeral Diffie-Hellman (DHE) or Elliptic Curve Ephemeral Diffie-Hellman (ECDHE). Most modern systems such as Java 7 and later support these modes.
Additionally, requests must be signed by using an access key ID and a secret access key that is associated with an IAM principal. Or you can use the AWS Security Token Service (AWS STS) to generate temporary security credentials to sign requests.
The Envoy proxy is deployed with a microservice application that is running on an AWS compute service. Each of the compute services are deployed within an Amazon VPC.
Customers are advised to leverage security groups to protect the Envoy management port from unauthorized access. The management port is required to establish the health of the Envoy container, and by default is available to hosts in the same VPC. If tasks are publicly accessible, this port will be accessible also. Unless explicitly required for troubleshooting, this port should be closed to all access.
You can improve the security posture of your VPC by configuring App Mesh to use an interface VPC endpoint. For more information, see App Mesh Interface VPC Endpoints (AWS PrivateLink).
