cis-ubuntu2004-v300-5-3-1-1

name	cis-ubuntu2004-v300-5-3-1-1
description	Ensure latest version of pam is installed
category	cis-iam
version	3.0.0
author	cyberstrike-official
tags	["cis","ubuntu","linux","ubuntu-20.04","pam","authentication"]
cis_id	5.3.1.1
cis_benchmark	CIS Ubuntu Linux 20.04 LTS Benchmark v3.0.0
tech_stack	["ubuntu","linux"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

5.3.1.1 Ensure latest version of pam is installed (Automated)

Profile Applicability

• Level 1 - Server
• Level 1 - Workstation

Description

Linux Pluggable Authentication Modules (PAM) is a suite of libraries that allow a Linux system administrator to configure methods to authenticate users. It provides a flexible and centralized way to switch authentication methods for secured applications by using configuration files instead of changing application code.

The libpam-runtime provides the runtime support for the PAM library.

Rationale

Older versions of the libpam-runtime package may not include the latest security and feature patches and updates.

Note: This Benchmark includes Recommendations that depend on newer libpam-runtime features. These Recommendations were written and tested against version 1.3.1-5ubuntu4.7. Latest available version of the package should be used.

Audit Procedure

Command Line

Run the following command to verify libpam-runtime is installed:

# dpkg-query -s libpam-runtime &>/dev/null && echo "libpam-runtime is installed"

Run the following command to verify libpam-runtime is the latest version:

# apt list --upgradable 2>&1 | grep -P '^libpam-runtime\b'

Expected Result

The first command should return:

libpam-runtime is installed

The second command should return nothing.

Remediation

Command Line

Run the following command to install the latest version of libpam-runtime:

# apt install libpam-runtime

References

1. PAM(7)

CIS Controls

Controls Version	Control	IG 1	IG 2	IG 3
v8	0.0 Explicitly Not Mapped
v7	0.0 Explicitly Not Mapped