ECS Tasks Should Not Have PidMode As Host
More Info:
This rule verifies the PID (Process Identifier) mode configuration in ECS Task Definitions. The PID mode determines how processes within the container interact with the host system’s process namespace. Properly configuring the PID mode can enhance security and resource isolation within ECS tasks. Ensure that the PID mode is set appropriately based on your application’s requirements and security considerationsRisk Level
MediumAddress
SecurityCompliance Standards
CBPTriage and Remediation
Remediation
Using Console
Using Console
To remediate the misconfiguration of ECS tasks having PidMode as host in AWS Kubernetes using the AWS console, follow these steps:
- Access the AWS Management Console: Go to the AWS Management Console (https://console.aws.amazon.com/).
- Navigate to Amazon ECS: Click on the “Services” dropdown menu at the top left corner of the console, then select “ECS” under the “Compute” section.
- Select the Cluster: From the ECS dashboard, select the cluster where the ECS tasks with PidMode as host are running.
- Select the Task Definition: In the cluster, click on the task definition that includes the ECS tasks with PidMode as host.
- Edit Task Definition: In the task definition details page, click on the “Create new revision” button to create a new revision of the task definition.
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Update Container Configuration:
- In the container definitions section, find the container that has PidMode set to “host”.
- Click on the container to edit its configuration.
- Locate the “PidMode” parameter and change its value from “host” to “task”.
- Save Changes: After updating the container configuration, click on the “Update” button to save the changes to the task definition.
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Update Service: If the ECS tasks are part of a service, you will need to update the service to use the new task definition revision.
- Go back to the cluster dashboard and click on the service that is using the task definition with PidMode as host.
- Click on the “Update” button to update the service to use the new task definition revision.
- Verify Changes: Once the service is updated, verify that the ECS tasks are now using the corrected task definition with PidMode set to “task” instead of “host”.
Using CLI
Using CLI
To remediate the misconfiguration where ECS tasks have PidMode set to “host” in AWS Kubernetes using AWS CLI, you can follow these steps:
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List all the ECS tasks in your cluster to identify the tasks with PidMode set to “host”:
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Describe each ECS task to check the PidMode configuration:
- Identify the tasks where PidMode is set to “host”.
- Update the ECS task definition to remove or change the PidMode configuration. You can do this by creating a new task definition revision with the corrected configuration. You can either update the existing task definition or create a new one based on your requirements.
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To update the task definition, you can use the
register-task-definitioncommand with the corrected PidMode configuration. For example, if you want to set PidMode to “task” instead of “host”: -
Once the new task definition is registered, update the ECS service to use the new task definition:
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Verify that the ECS tasks are now running with the corrected PidMode configuration:
Using Python
Using Python
To remediate the misconfiguration where ECS tasks have
PidMode as host in AWS Kubernetes using Python, you can follow these steps:- Use the AWS SDK for Python (Boto3) to describe the ECS task definition and check if the
PidModeis set tohost. Here’s an example code snippet to achieve this:
- If the
PidModeis set tohost, update the ECS task definition to remove thePidModesetting. Here’s an example code snippet to update the task definition:
- Run the Python script to check and remediate the misconfiguration in the ECS task definition in AWS Kubernetes.
your-region, your-account-id, your-task-definition with the appropriate values for your AWS account and ECS task definition. Additionally, ensure that your AWS credentials are properly configured for the Boto3 SDK to interact with AWS services.