# Cis AWS Euc 2.11

> Ensure your WorkSpaces image has the appropriate CIS Operating System Benchmark applied

- Skill: `cyberstrikeus/cis-aws-euc-2-11` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-aws-euc-2-11`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-aws-euc-2-11/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/cis-aws-euc-2-11

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# Ensure your WorkSpaces image has the appropriate CIS Operating System Benchmark applied (Manual)

## Description

Utilize the CIS Benchmark to secure the Operating system image that you are utilizing for your WorkSpaces.

## Rationale

Securing the Operating system with a CIS Benchmark ensures all systems remain in a secure, compliant and hardened state.

## Impact

None

## Audit Procedure

### Using AWS Console

Spin up a WorkSpaces instance and run a manual assessment by confirming the CIS Operating System Benchmark recommendations for the applicable operating system are applied. You can also utilize a 3rd Party Assessment tool that has been certified for the specific CIS Operating System Benchmark to automate this process.

### Expected Result

The WorkSpaces image should have the appropriate CIS Operating System Benchmark applied.

## Remediation

### Using AWS Console

Perform the steps below using the downloaded free version of the applicable CIS Operating System Benchmark and manually apply the recommendations for the WorkSpaces instance. Or Utilize a 3rd Party tool to assess and apply the CIS Operating System Benchmark.

1. Launch a WorkSpaces Bundle
2. Access that WorkSpace as an Administrator utilize SSH or RDP.
3. Apply the Benchmark:
   - Manually
   - Using Active Directory by creating a GPO that matches the Benchmark.
   - Or using a Third Party tool that will apply the Benchmark recommendations.
4. Assess the WorkSpaces instance manually or with a 3rd Party tool.
5. Create a workspace bundle that can then be used to launch your production WorkSpaces instances.

## Default Value

By default, this feature is not native to AWS and therefore is not enabled by default.

## References

1. https://www.cisecurity.org/partners-vendor/
2. https://docs.aws.amazon.com/workspaces/latest/adminguide/create-custom-bundle.html
3. https://docs.aws.amazon.com/workspaces/latest/adminguide/update-custom-bundle.html

## CIS Controls

**Controls Version v8:**

- 4.1 Establish and Maintain a Secure Configuration Process

**Controls Version v7:**

- 5.1 Establish Secure Configurations

## Profile

Level 1