Puppet CIS

Table of Contents

1. Overview
2. Module Description
3. Setup
4. Usage
5. Requirements
6. Compatibility
7. Limitations
8. Development
   • TODO

Overview

This is the CIS module for RHEL and Ubuntu based systems for server hardenining. This fork has been modified to be compliant with the CIS CentOS 7 Benchmark v1.1.0 guide (04-02-2015). As such some settings may have been removed that weren't scored or were superfluous. Additionally it's been tweaked to play nice with other modules or system updates. One item of note is that the SSH Configuration has been removed completely, it can be handled via the saz-ssh module. An example hiera configuration is provided.

Module Description

This is a fully parametarized module for hardening servers to the CIS benchmark. The parameters let you easily specify to which degree you want to harden and easily allow for exceptions. This module includes everything scored in the latest CIS benchmarks which can be found in my CIS github repo.

Setup

You may need to setup a mail relay, or if your in AWS and using SES, replace the cis::mail stuff with your SES credentials and include the SES module from the forge. Other than that just see the params for all your settings.

Usage

include ::cis
#For SSH Configuration
include ssh::server

You'll need to provide the settings for SSH via hiera, the following configuration should cover the minimum requirements:

ssh::server::options:
 Protocol: 2
 LogLevel: INFO
 X11Forwarding: no
 MaxAuthTries: 4
 IgnoreRhosts: yes
 HostbasedAuthentication: no
 PermitRootLogin: no
 PermitEmptyPasswords: no
 PermitEmptyPasswords: no
 PermitUserEnvironment: no
 Ciphers: 'aes128-ctr,aes192-ctr,aes256-ctr'
 ClientAliveInterval: 300
 ClientAliveCountMax: 0
 Banner: /etc/issue

Requirements

puppetlabs/stdlib >=4.6.0

puppetlabs/firewall >=1.1.3

kemra102/auditd >=1.0.2

fiddyspence/sysctl >=1.1.0

mjhas/postfix >=1.0.0

jfryman/selinux >=0.2.3

herculesteam/augeasproviders_pam>=2.1.0

erwbgy/limits>=0.3.1

puppetlabs/mount_providers>=0.0.3"

puppetlabs/ntp>=4.1.2

saz/rsyslog>=3.5.1

Compatibility

• RHEL 6,7
• CentOS 6,7
• Fedora 20,20,21
• Ubuntu 12.04,14.04
• Debian 6,7

Limitations

This module has been tested on:

• RHEL 6,7
• Ubuntu 14.04
• CentOS 7

Development

Any updates or contibutions are welcome.

Report any issues with current release, as any input will be considered valuable.

TODO

• add option for postfix or ses in params

Contact

Email: morgan@aspendenver.org

WWW: www.aspendenver.org

Github: https://github.com/swizzley