ECS Tasks Should Have Network Mode Set To AWSVPC
More Info:
To comply with this rule, ensure that the networking mode for ECS Task Definitions is set to ‘awsvpc’. This ensures better network isolation and compatibility with various AWS services.Risk Level
MediumAddress
SecurityCompliance Standards
CBPTriage and Remediation
Remediation
Using Console
Using Console
To remediate the misconfiguration of ECS tasks not having the network mode set to AWSVPC in AWS using the AWS Management Console, follow these steps:
- Access the AWS Management Console: Go to the AWS Management Console at https://console.aws.amazon.com/.
- Navigate to ECS Cluster: In the console dashboard, navigate to the Amazon ECS service.
- Select the ECS Cluster: Select the ECS cluster where the misconfigured tasks are located.
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Update Task Definition:
- Click on the “Task Definitions” on the left-hand side menu.
- Select the task definition that you want to update by clicking on its name.
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Edit Task Definition:
- In the task definition details page, click on the “Edit” button to make changes to the task definition.
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Update Network Mode:
- In the task definition editor, locate the “Network Mode” section.
- Change the network mode to “awsvpc” from the dropdown menu.
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Save Changes:
- After updating the network mode, click on the “Save” button to save the changes to the task definition.
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Update ECS Service:
- Go back to the ECS cluster dashboard.
- Select the service that uses the updated task definition.
- Click on the “Update” button to update the service with the new task definition.
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Verify Changes:
- Once the service update is complete, verify that the ECS tasks now have the network mode set to AWSVPC.
- You can check the task details to ensure that the network mode is configured correctly.
Using CLI
Using CLI
To remediate the ECS tasks with incorrect network mode set to AWSVPC in AWS EKS (Kubernetes) using AWS CLI, you can follow these steps:
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List the ECS tasks in your EKS cluster to identify the tasks with incorrect network mode:
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Describe the ECS tasks to get more details about the tasks, including the network mode:
- Identify the tasks that have the network mode set to a value other than AWSVPC.
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Update the ECS task definition to set the network mode to AWSVPC. You can do this by creating a new task definition revision with the correct network mode. You can use the
sedcommand to update the existing task definition JSON file. -
Update the task definition using the
update-task-definitioncommand: -
Stop the existing tasks and start new tasks with the updated task definition:
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Verify that the new tasks are running with the correct network mode:
Using Python
Using Python
To remediate the ECS tasks network mode misconfiguration in AWS Kubernetes using Python, you can follow these steps:Make sure to replace
- Use the AWS SDK for Python (Boto3) to interact with the AWS resources programmatically. Make sure you have the Boto3 library installed in your Python environment.
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List all the ECS tasks in the AWS account using the
list_tasksmethod from the ECS client in Boto3. -
For each ECS task identified, describe the task using the
describe_tasksmethod to retrieve the task definition ARN. -
Retrieve the task definition using the
describe_task_definitionmethod to get the details of the task definition. -
Check if the
networkModeattribute in the task definition is set toawsvpc. If it’s not, update the task definition to set thenetworkModetoawsvpc. -
Update the task definition using the
register_task_definitionmethod to apply the changes.
'your-cluster-name' with the name of your ECS cluster. This script will identify ECS tasks with network mode misconfiguration and update them to use the awsvpc network mode.