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Cis AWS Euc 2.6

DevOps & Security
cis-aws-euc-2.6

Cis AWS Euc 2.6 is an Agent Skill for devops & security published in the CyberStrikeus/CyberStrike repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Ensure Web Access to Workspaces is Disabled

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How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/CyberStrikeus/CyberStrike/blob/HEAD/.cyberstrike/skill/CIS_benchmarks/Cloud_Providers/AWS/CIS_AWS_End_User_Compute_Services_Benchmark_v1.2.0/cis-aws-euc-2.6/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/cis-aws-euc-2-6, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

Ensure Web Access to Workspaces is Disabled (Automated)

Profile Applicability

  • Level 1

Description

WorkSpaces access should be restricted to trusted operating systems and clients.

Rationale

WorkSpaces access is supported from a variety of clients and operating systems, including HTML5 based browsers. Disabling Web Access prevents access to the Workspace from HTML5 based browsers, ensuring access can only occur from known operating systems.

Impact

None specified in the benchmark.

Audit Procedure

Using AWS Console

Perform the following steps to confirm that Web Access is disabled:

  1. Log in to the WorkSpaces console at https://console.aws.amazon.com/workspaces/
  2. In the left pane, click Directories
  3. Select the directory id link you wish to view
  4. Scroll to the Other platforms section
  5. Confirm that Web Access is denied

If everything is not configured as above refer to the remediation below.

Remediation

Using AWS Console

Perform the following steps to disable Web Access:

  1. Log in to the WorkSpaces console at https://console.aws.amazon.com/workspaces/
  2. In the left pane, click Directories
  3. Select the directory id link
  4. Scroll to the Other platforms section
  5. Uncheck Web Access
  6. Click Save

Default Value

By default, web access is disabled.

References

  1. https://docs.aws.amazon.com/workspaces/latest/adminguide/web-access.html

CIS Controls

v8:

  • 13.5 Manage Access Control for Remote Assets
    • Manage access control for assets remotely connecting to enterprise resources. Determine amount of access to enterprise resources based on: up-to-date anti-malware software installed, configuration compliance with the enterprise's secure configuration process, and ensuring the operating system and applications are up-to-date.

v7:

  • 12.12 Manage All Devices Remotely Logging into Internal Network
    • Scan all enterprise devices remotely logging into the organization's network prior to accessing the network to ensure that each of the organization's security policies has been enforced in the same manner as local network devices.