CIS Compliant — SSH Security Toolkit

ssh-shield

Audit. Harden. Report.

Zero-dependency SSH hardening for CIS compliance. Protect against brute-force, credential stuffing, and audit failures.

$curl -sL ... | sudo bash
View on GitHubTry Demo
5/6
Security Score
CIS
Benchmark 5.2.8
Zero
Dependencies

Audit

Check current SSH hardening status. Get a security score with color-coded results and CIS Benchmark references.

Harden

Apply CIS-compliant settings safely. Automatic backups, config validation, and rollback on failure.

Report

Generate HTML compliance reports for auditors. Production-ready documentation that satisfies SOC2/ISO27001.

Interactive Terminal

Try ssh-shield commands in your browser. No installation required. This simulator demonstrates audit, harden, and report functionality.

ssh-shield@production-server:~
$ssh-shieldaudit
═══════════════════════════════════════════════════════════════
SSH-SHIELD AUDIT REPORT
2026-03-05 09:15:23
═══════════════════════════════════════════════════════════════
Server: production-api-01
OS: Ubuntu 22.04.3 LTS
SSH Config: /etc/ssh/sshd_config
┌─ Authentication Settings ───────────────────────────────────┐
✓ PermitRootLogin: no
CIS 5.2.8: Disabling root login prevents brute-force attacks
! PasswordAuthentication: yes
CIS 5.2.12: Key-based auth is more secure than passwords
✓ PubkeyAuthentication: yes
Required for key-based authentication
└─────────────────────────────────────────────────────────────┘
┌─ Protocol & Connection Settings ──────────────────────────┐
✓ Protocol: 2
SSH v2 only (v1 has known vulnerabilities)
✓ PermitEmptyPasswords: no
CIS 5.2.7: Empty passwords are a critical risk
✓ MaxAuthTries: 3
CIS 5.2.5: Limit brute-force attempts
└─────────────────────────────────────────────────────────────┘
┌─ Security Score ────────────────────────────────────────────┐
★★★★☆ 5/6 - Mostly Secure (minor improvements needed)
└─────────────────────────────────────────────────────────────┘
$
Quick Commands:

CIS Benchmark Coverage

5.2.8 PermitRootLogin

Disabling root login prevents brute-force attacks against the most privileged account.

PermitRootLogin no

5.2.12 PasswordAuthentication

Key-based authentication eliminates password-based attacks and credential stuffing.

PasswordAuthentication no

5.2.5 MaxAuthTries

Limit brute-force amplification by restricting authentication attempts per connection.

MaxAuthTries 3

Production Warning

Always test in staging first. Ensure alternative access (console/keys) before applying hardening.

Backup created automatically