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Cis Apache 11.3

DevOps & Security
cis-apache-11.3

Cis Apache 11.3 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 httpd_t Type Is Not in Permissive Mode

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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.

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  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_2.2_Benchmark_v3.6.0/cis-apache-11.3/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/cis-apache-11-3, but wait for my approval before writing files or running scripts.

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Ensure the httpd_t Type Is Not in Permissive Mode

Description

In addition to setting the entire SELinux configuration in permissive mode, it is possible to set individual process types (domains) such as httpd_t into permissive mode as well. Permissive mode will not prevent any access or actions; instead, any actions that would have been denied are simply logged.

Rationale

Usage of permissive mode is helpful for testing and ensuring that SELinux will not prevent access that is necessary for the proper function of a web application. However, all access is allowed in permissive mode by SELinux.

Impact

None documented

Audit Procedure

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

Check that the httpd_t process type (domain) is not in permissive mode with the semodule command. There should be no output if the type is not set to permissive.

# semodule -l | grep permissive_httpd_t

Remediation

Perform the following to implement the recommended state:

If the httpd_t type is in permissive mode, the customized permissive mode should be deleted with the following semanage command.

# semanage permissive -d httpd_t

Default Value

The httpd_t type is not in permissive mode by default.

References

  1. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Security-Enhanced_Linux/sect-Security-Enhanced_Linux-Fixing_Problems-Permissive_Domains.html

CIS Controls

Version 6

14.4 Protect Information With Access Control Lists All information stored on systems shall be protected with file system, network share, claims, application, or database specific access control lists. These controls will enforce the principle that only authorized individuals should have access to the information based on their need to access the information as a part of their responsibilities.

Version 7

14.6 Protect Information through Access Control Lists Protect all information stored on systems with file system, network share, claims, application, or database specific access control lists. These controls will enforce the principle that only authorized individuals should have access to the information based on their need to access the information as a part of their responsibilities.

Profile

Level 2 | Scored