How do I install the Cis Apache24 5.5 skill?

Run npx skillmds@latest add cyberstrikeus/cis-apache24-5-5 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Cis Apache24 5.5 skill do?

Ensure the Default CGI Content printenv Script Is Removed It is listed under Coding & Dev Tools on SkillMD.

Is Cis Apache24 5.5 safe to use?

SkillMD's automated safety review verdict for this skill is PASS. Independent scanners report: SkillSpector: CAUTION, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Cis Apache24 5.5?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Cis Apache24 5.5 free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Cis Apache24 5.5?

cyberstrikeus (@cyberstrikeus) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Cis Apache24 5.5 by cyberstrikeus — Agent Skill

Name: Cis Apache24 5.5
Author: cyberstrikeus

File contents

5.5 Ensure the Default CGI Content printenv Script Is Removed

Profile Applicability

Level 2

Description

Most Web Servers, including Apache installations have default CGI content which is not needed or appropriate for production use. The primary function for these sample programs is to demonstrate the capabilities of the web server. One common default CGI content for Apache installations is the script printenv. This script will print back to the requester all of the CGI environment variables which includes many server configuration details and system paths.

Rationale

CGI programs have a long history of security bugs and problems associated with improperly accepting user-input. Since these programs are often targets of attackers, we need to make sure that there are no unnecessary CGI programs that could potentially be used for malicious purposes. Usually these programs are not written for production use and consequently little thought was given to security in their development. The printenv script in particular will disclose inappropriate information about the web server including directory paths and detailed version and configuration information.

Audit

Perform the following to determine if the recommended state is implemented:

Locate cgi-bin files and directories enabled in the Apache configuration via Script, ScriptAlias or ScriptAliasMatch directives.
Ensure the printenv CGI is not installed in any configured cgi-bin directory.

Remediation

Perform the following to implement the recommended state:

Locate cgi-bin files and directories enabled in the Apache configuration via Script, ScriptAlias, ScriptAliasMatch directives.
Remove the printenvdefault CGI in cgi-bin directory if it is installed.

# rm $APACHE_PREFIX/cgi-bin/printenv

Default Value

The default source installation includes the printenv script. However, this script is not executable by default.

Profile

Level 2 | Manual

---name: cis-apache24-5-5description: Ensure the Default CGI Content printenv Script Is Removed---# 5.5 Ensure the Default CGI Content printenv Script Is Removed## Profile Applicability- Level 2## DescriptionMost Web Servers, including Apache installations have default CGI content which is not needed or appropriate for production use. The primary function for these sample programs is to demonstrate the capabilities of the web server. One common default CGI content for Apache installations is the script `printenv`. This script will print back to the requester all of the CGI environment variables which includes many server configuration details and system paths.## RationaleCGI programs have a long history of security bugs and problems associated with improperly accepting user-input. Since these programs are often targets of attackers, we need to make sure that there are no unnecessary CGI programs that could potentially be used for malicious purposes. Usually these programs are not written for production use and consequently little thought was given to security in their development. The `printenv` script in particular will disclose inappropriate information about the web server including directory paths and detailed version and configuration information.## AuditPerform the following to determine if the recommended state is implemented:1. Locate cgi-bin files and directories enabled in the Apache configuration via `Script`, `ScriptAlias` or `ScriptAliasMatch` directives.2. Ensure the `printenv` CGI is not installed in any configured cgi-bin directory.## RemediationPerform the following to implement the recommended state:1. Locate cgi-bin files and directories enabled in the Apache configuration via `Script`, `ScriptAlias`, `ScriptAliasMatch` directives.2. Remove the `printenv`default CGI in cgi-bin directory if it is installed.```bash# rm $APACHE_PREFIX/cgi-bin/printenv```## Default ValueThe default source installation includes the `printenv` script. However, this script is not executable by default.## Profile- Level 2 | Manual

Frequently asked questions

Cis Apache24 5.5