ECS Tasks Should Not Have Root As User
More Info:
This rule examines ECS Task Definitions to ensure that tasks are not configured to run as the root user. Running tasks with a non-root user provides an additional layer of security by minimizing the potential impact of security vulnerabilities within the container.Risk Level
MediumAddress
SecurityCompliance Standards
CBP,RBI_MD_ITFTriage and Remediation
Remediation
Using Console
Using Console
To remediate the misconfiguration of ECS tasks having root as the user in AWS Kubernetes using the AWS console, you can follow these steps:
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Access the AWS Management Console:
- Go to the AWS Management Console at https://console.aws.amazon.com/.
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Navigate to Amazon ECS Service:
- Click on the “Services” dropdown menu at the top of the page.
- Select “ECS” under the “Compute” section.
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Select the Cluster:
- From the ECS dashboard, click on the cluster where the ECS tasks with root as the user are running.
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Select the Task Definition:
- In the cluster dashboard, click on the task definition that includes the ECS tasks with root as the user.
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Edit the Task Definition:
- In the task definition details page, click on the “Create new revision” button to create a new revision of the task definition.
- Click on the container definition that has root as the user.
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Update Container Definition:
- In the container definition settings, scroll down to the “Container Definition” section.
- Update the “user” field to a non-root user. You can specify a user ID or a username that is not root.
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Save Changes:
- After updating the container definition, click on the “Update” button to save the changes.
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Update Service:
- Go back to the cluster dashboard and click on the service that is using the task definition with the updated container definition.
- Click on the “Update” button to force a new deployment of the service with the updated task definition.
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Verify the Changes:
- Once the service is updated, verify that the ECS tasks are now running with a non-root user instead of root.
Using CLI
Using CLI
To remediate the misconfiguration of ECS tasks having root as the user in AWS Kubernetes using AWS CLI, you can follow these steps:
- List all ECS tasks in the cluster:
- For each task identified in the previous step, describe the task to get more details:
- Identify the task definition ARN for each task:
- Download the task definition JSON file:
- Open the downloaded JSON file (task_definition.json) and locate the “containerDefinitions” section.
- Within the “containerDefinitions” section, find the “user” attribute. If it is set to “root”, change it to a non-root user (e.g., “nobody” or a specific non-root user).
- Save the changes to the task definition JSON file.
- Register the updated task definition with ECS:
- Update the ECS service to use the new task definition:
- Verify that the ECS tasks no longer have root as the user by checking the task details.
Using Python
Using Python
To remediate the misconfiguration of ECS tasks having root as the user in AWS Kubernetes using Python, you can follow these steps:Please replace
- Use the AWS SDK for Python (Boto3) to interact with AWS resources. Make sure you have the Boto3 library installed in your Python environment.
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List all ECS tasks in the cluster to identify which tasks have root as the user. You can achieve this by using the
list_tasksAPI of ECS. -
For each ECS task identified in the previous step, describe the task to get more details. You can use the
describe_tasksAPI of ECS for this purpose. -
Check the task definition of each task to see if the user is set as root. You can use the
describe_task_definitionAPI of ECS to get the task definition. -
If the user is set as root in the task definition, update the task definition to change the user to a non-root user. You can use the
register_task_definitionAPI of ECS to update the task definition. -
Re-deploy the ECS task with the updated task definition to ensure that the changes take effect. You can use the
update_serviceAPI of ECS to update the service associated with the task. - Monitor the ECS tasks to ensure that the user is no longer set as root.
your_cluster_name and your_service_name with your actual ECS cluster and service names. Also, ensure that you have the necessary IAM permissions to perform these actions.