Ensure the security group are configured with fine grained rules

MediumLevel 1Manual reviewalibaba

Description

Security groups provide stateful filtering of ingress/egress network traffic to Alibaba Cloud resources. It is recommended that all security group configured with fine grained rules. Configure fine grained security group rules is a very effective way of minimizing the impact of breach as resources outside of these rules are inaccessible to the ECS instance. Reported as a manual review item: the benchmark audit needs console review or organisational judgement.

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

1. Logon to ECS Console. 2. In the left-side navigation pane, choose Network & Security > Security Groups. 3. Ensure the rules in each of your security groups are all necessary for your operation. Expected state: 1. Logon to ECS Console. 2. In the left-side navigation pane, choose Network & Security > Security Groups. 3. Remove any unnecessary rules in all security groups.

How it is fixed

Fix method: Guidance or infrastructure patch

1. Logon to ECS Console. 2. In the left-side navigation pane, choose Network & Security > Security Groups. 3. Remove any unnecessary rules in all security groups.

Properties

Operating systems: Any
Tags: alibabanetwork
Reference: CIS Alibaba Cloud Foundation Benchmark v2.0.1 - 3.5 Ensure the security group are configured with fine grained rules