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基于 SOC 职业分类
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| name | cis-aws-compute-3.3 |
| description | Ensure Amazon ECS task definitions do not have 'pidMode' set to 'host' |
| category | cis-compute |
| version | 1.1.0 |
| author | cyberstrike-official |
| tags | ["cis","aws","compute","ecs","containers","task-definitions","pid-namespace","isolation"] |
| cis_id | 3.3 |
| cis_benchmark | CIS AWS Compute Services Benchmark v1.1.0 |
| tech_stack |
| ["aws"] |
| cwe_ids | [] |
| chains_with | ["cis-aws-compute-3.1","cis-aws-compute-3.4"] |
| prerequisites | [] |
| severity_boost | {} |
A process ID (PID) namespace isolates processes, preventing system processes from being visible to containers and allowing for PID reuse. Ensure that Amazon ECS task definitions are not configured to share a host's process namespace with their containers.
Note: This recommendation assumes that only the latest active revision of a task definition is in use. If older revisions are in use, apply the audit and remediation procedures to those revisions as needed.
Setting the pidMode parameter to host shares the host's PID namespace with containers, allowing them to view and interact with all host processes. This reduces isolation and may lead to unauthorized access and manipulation of host processes by malicious or compromised containers.
There may be some administrative effort required to ensure Amazon ECS applications function as expected without host PID mode.
Task definitions.JSON.pidMode parameter is present, ensure it is not set to host.Run the following command to list task definitions:
aws ecs list-task-definitions
For the latest revision of a task definition, run the following command:
aws ecs describe-task-definition --task-definition <task-definition-arn> --query 'taskDefinition.pidMode'
Ensure that the command does not return "host".
Repeat for each task definition.
The pidMode parameter should not be set to host for any task definition.
Task definitions.Create new revision.Create new revision with JSON.pidMode to task, or remove the pidMode parameter as appropriate.Create.Note: When a task definition is updated, running tasks launched from the previous task definition remain unchanged. Updating a running task requires redeploying it with the new task definition.
No specific CLI remediation provided. Register a new task definition revision with corrected pidMode setting using aws ecs register-task-definition.
If no value is specified, the default is a private namespace for each container.
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|---|---|---|---|
| v8 | 4.1 Establish and Maintain a Secure Configuration Process | x | x | x |
| v7 | 5.1 Establish Secure Configurations | x | x | x |
Level 1 | Automated