Cis Gcp Cos 5.4

---
name: cis-gcp-cos-5.4
description: "Ensure root login is restricted to system console"
category: cis-gcp-cos
version: "1.2.0"
author: cyberstrike-official
tags: [cis, gcp, container-optimized-os, root-login, access-control]
cis_id: "5.4"
cis_benchmark: "CIS Google Container-Optimized OS Benchmark v1.2.0"
tech_stack: [gcp, linux]
cwe_ids: []
chains_with: []
prerequisites: []
severity_boost: {}
---

# 5.4 Ensure root login is restricted to system console (Manual)

## Description

The file `/etc/securetty` contains a list of valid terminals that may be logged in directly as root.

## Rationale

Since the system console has special properties to handle emergency situations, it is important to ensure that the console is in a physically secure location and that unauthorized consoles have not been defined.

## Audit Procedure

```bash
# cat /etc/securetty
```

## Expected Result

Only consoles that are in a physically secure location should be listed in `/etc/securetty`.

## Remediation

Remove entries for any consoles that are not in a physically secure location.

## CIS Controls

| Controls Version | Control                                                                                                                                                                                                                                                                                                                          | IG 1 | IG 2 | IG 3 |
| ---------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---- | ---- | ---- |
| v8               | **5.4 Restrict Administrator Privileges to Dedicated Administrator Accounts** - Restrict administrator privileges to dedicated administrator accounts on enterprise assets. Conduct general computing activities, such as internet browsing, email, and productivity suite use, from the user's primary, non-privileged account. | x    | x    | x    |
| v7               | **5.1 Establish Secure Configurations** - Maintain documented, standard security configuration standards for all authorized operating systems and software.                                                                                                                                                                      | x    | x    | x    |

## Profile

- Level 1 - Server