lexmark-security-auditor 0.1.3

Lexmark MX710 EWS security auditor & hardening automation (Basic Security + disable HTTP) via Playwright.

Lexmark Security Auditor (EWS)

Enterprise-grade security auditing and hardening tool for Lexmark MX710 (and compatible models) via Embedded Web Server (EWS).

Built with Playwright + Python, this tool enables controlled, automated security enforcement at scale.

Overview

The Lexmark Security Auditor was developed to:

• Audit administrative exposure on Lexmark printers

• Enforce Basic Security (username/password protection)

• Disable insecure services (e.g., TCP 80 – HTTP)

• Operate at scale across multiple devices

• Provide CSV/JSON reporting for governance & compliance

Designed with a modular architecture, the tool separates:

• Authentication logic

• Port configuration logic

• Security workflows

• Runner orchestration

• CLI interface

Key Features

Security Audit

• Detects if admin/security pages are:

  • OPEN

  • AUTH required

  • UNKNOWN

• Identifies exposure via:

  • /auth/manageusers.html

  • login redirects

  • HTTP status codes

Basic Security Enforcement

Automates:

1. Navigate to:

/cgi-bin/dynamic/config/config.html

2. Access

Configurações → Segurança → Configuração de segurança

3. Configure:

   • Authentication Type: UsernamePassword

   • Admin ID

   • Password

4. Apply configuration

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HTTP Hardening (TCP 80 Disable)

• Authenticates via form-based login

• Navigates to:

/cgi-bin/dynamic/config/secure/ports.html

• Unchecks

TCP 80 (HTTP)

• Submits configuration

• Verifies idempotently

• Performs logout

✔ Idempotent (safe to run multiple times)

✔ Safe retry logic

✔ Session-aware

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Architecture

lexmark_security_auditor/
│
├── cli.py
├── runner.py
│
├── models.py
├── ews_client.py
│
└── workflows/
    ├── auth.py
    ├── basic_security.py
    ├── probe.py
    └── ports.py

---

Module	Responsibility
runner.py	Orchestration & decision logic
auth.py	Session handling & login
ports.py	TCP 80 disable logic
basic_security.py	Admin security enforcement
probe.py	Exposure detection
ews_client.py	EWS navigation abstraction

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Architecture Diagram

Execution Flow (w/ login + disable)

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Installation (Development Mode)

From project root:

pip install -e .

This enables:

lexmark-audit ...

Or:

python -m lexmark_security_auditor.cli ...

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Usage Examples

Note: If you're on Powershell replace the \ by `

Audit Only

lexmark-audit \
  --hosts printers.txt \
  --https

Apply Basic Security

lexmark-audit \
  --hosts printers.txt \
  --https \
  --apply-basic-security \
  --new-admin-user <ID do usuário> \
  --new-admin-pass "Senha"

Disable HTTP (Authenticated)

lexmark-audit \
  --hosts printers.txt \
  --https \
  --disable-http \
  --auth-user <ID do usuário> \
  --auth-pass "Senha"

With Reporting

lexmark-audit \
  --hosts printers.txt \
  --https \
  --disable-http \
  --auth-user <ID do usuário> \
  --auth-pass "Senha" \
  --report-csv report.csv

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Output Fields (CSV/JSON)

Field	Description
host	Printer IP
probe_result	OPEN / AUTH / UNKNOWN
evidence	Detection details
basic_security_applied	Boolean
http_disabled	Boolean
status	ok / timeout / error
error	Error message

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Security Considerations

• Credentials are passed via CLI (consider secure vault integration)

• HTTPS recommended

• Designed for internal network use

• Session cookies handled via Playwright context

• Idempotent operations to avoid configuration drift

Design Principles

• Modular

• Idempotent

• Stateless between hosts

• Session-aware

• Explicit authentication

• Clear separation of concerns

• Enterprise reporting ready

Requirements

• Python 3.9+

• Playwright

• Chromium (installed via playwright install)

Roadmap (Future Enhancements)

• Vault integration (HashiCorp)

• SNMP configuration hardening

• Parallel host execution

• Compliance summary dashboard

• Unit test coverage

• Docker container image

Disclaimer

This tool is provided "as is", without warranty of any kind, express or implied.

lexmark-security-auditor performs automated configuration changes on network-connected devices (e.g., enabling Basic Security, modifying TCP/IP port access settings). Improper use may result in:

• Loss of remote access to devices

• Service disruption

• Configuration lockout

• Network communication impact

The author assumes no liability for any damage, data loss, service interruption, or operational impact resulting from the use of this software.

Intended Use

This tool is intended for:

• Authorized administrators

• Controlled environments

• Lab validation prior to production rollout

• Security hardening under change-management processes

You are solely responsible for:

• Ensuring proper authorization before accessing devices

• Validating configuration changes in a test environment

• Backing up device configurations prior to execution

• Following your organization's change control policies

Security Responsibility

Disabling TCP 80 (HTTP) and enforcing authentication may restrict access methods. Ensure that:

• HTTPS (TCP 443) remains enabled

• Valid administrative credentials are known

• Recovery procedures are documented

No Vendor Affiliation

This project is not affiliated with, endorsed by, or supported by Lexmark International, Inc.

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License

This project is licensed under the MIT License.
See LICENSE for details.

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Contributions

Pull requests, issues, and feature requests are welcome!

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Author

Bruno Teixeira Network & Security Automation — Angola