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Cis Apache24 3.2

DevOps & Security
cis-apache24-3.2

Cis Apache24 3.2 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 the Apache User Account Has an Invalid Shell

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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/Server_Software/Apache_HTTP_Server/CIS_Apache_HTTP_Server_2.4_Benchmark_v2.3.0/cis-apache24-3.2/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/cis-apache24-3-2, 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.

3.2 Ensure the Apache User Account Has an Invalid Shell

Profile Applicability

  • Level 1

Description

The apache account must not be used as a regular login account, and should be assigned an invalid or nologin shell to ensure that the account cannot be used to login.

Rationale

Service accounts such as the apache account represent a risk if they can be used to get a login shell to the system.

Audit

Check the apache login shell in the /etc/passwd file:

# grep apache /etc/passwd

The apache account shell must be /sbin/nologin or /dev/null similar to the following:

/etc/passwd:apache:x:48:48:Apache:/var/www:/sbin/nologin

Remediation

Change the apache account to use the nologin shell or an invalid shell such as /dev/null:

# chsh -s /sbin/nologin apache

Default Value

The default Apache user account is daemon. The daemon account may have a valid login shell or a shell of /sbin/nologin depending on the operating system distribution version.

CIS Controls

Controls VersionControlIG 1IG 2IG 3
v82.6 Allowlist Authorized LibrariesUse technical controls to ensure that only authorized software libraries, such as specific .dll, .ocx, .so, etc., files, are allowed to load into a system process. Block unauthorized libraries from loading into a system process. Reassess bi-annually, or more frequently.●●
v72.7 Allowlist Authorized ScriptsUse technical controls, such as digital signatures and version control, to ensure that only authorized scripts, such as specific .ps1, .py, etc., files, are allowed to execute. Block unauthorized scripts from executing. Reassess bi-annually, or more frequently.●
v74.3 Ensure the Use of Dedicated Administrative AccountsEnsure that all users with administrative account access use a dedicated or secondary account for elevated activities. This account should only be used for administrative activities and not internet browsing, email, or similar activities.●●●

Profile

  • Level 1