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Raphael Vigneault edited this page Nov 27, 2024 · 4 revisions

Vaultwarden Audits

Vaultwarden has been audited by security companies which helps us in keeping Vaultwarden secure.

Some audits were done without publishing any data publicly because the companies which requested the audits with those security companies didn't allow it, but those researchers did provide the results.

Some audits are publicly published and can be accessed by everyone.

Audit by BSI

Note

The site and report are both in German

BSI (Bundesamt für Sicherheit in der Informationstechnik), a German institute performed an audit on Vaultwarden v1.30.3 under their CAOS (Codeanalyse von Open Source Software) project.

The press release, including the PDF with the results for Vaultwarden can be found here: https://www.bsi.bund.de/DE/Service-Navi/Presse/Alle-Meldungen-News/Meldungen/Codeanalyse-KeePass-Vaultwarden_241014.html

They even have a more detailed ZIP file with all raw information located here: https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/Downloadserver/P486/CAOS_Vaultwarden.html


As a reference you can download the report here:

Penetration Test by ERNW Enno Rey Netzwerke GmbH

ERNW Enno Rey Netzwerke GmbH assessed Vaultwarden during a penetration test for a customer in October 2024. In June 2024, the German Federal Office for Information Security (BSI) published results of a static and dynamic test of the Vaultwarden server component. Therefore, only a partial source code audit was performed during the assessment which also focussed on other software and infrastructure. ERNW identified 3 vulnerabilities, including an authentication bypass, that were responsibly disclosed to Vaultwarden. A writeup of the vulnerabilities is described in ERNW's blog Insinuator:

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FAQs

  1. FAQs
  2. Audits
  3. Supporting upstream development

Troubleshooting

  1. Logging
  2. Bitwarden Android troubleshooting
  3. Bitwarden clients troubleshooting

Container Image Usage

  1. Which container image to use
  2. Starting a container
  3. Using Docker Compose
  4. Using Podman
  5. Updating the vaultwarden image

Reverse Proxy

  1. Proxy examples
  2. Using an alternate base dir (subdir/subpath)

HTTPS

  1. Enabling HTTPS
  2. Running a private vaultwarden instance with Let's Encrypt certs

Configuration

  1. Overview
  2. Enabling admin page
  3. SMTP configuration
  4. Disable registration of new users
  5. Disable invitations
  6. Enabling WebSocket notifications
  7. Enabling Mobile Client push notification
  8. Enabling SSO support using OpenId Connect
  9. Other configuration

Database

  1. Using the MariaDB (MySQL) Backend
  2. Using the PostgreSQL Backend
  3. Running without WAL enabled
  4. Migrating from MariaDB (MySQL) to SQLite

Security

  1. Hardening Guide
  2. Password hint display
  3. Enabling U2F and FIDO2 WebAuthn authentication
  4. Enabling YubiKey OTP authentication
  5. Fail2Ban Setup
  6. Fail2Ban + ModSecurity + Traefik + Docker

Performance

  1. Changing the API request size limit
  2. Changing the number of workers

Customization

  1. Translating the email templates
  2. Translating admin page
  3. Customize Vaultwarden CSS
  4. Using custom website icons
  5. Disabling or overriding the Vault interface hosting

Backup

  1. General (not docker)
  2. Backing up your vault

Development

  1. Building binary
  2. Building your own docker image
  3. Git hooks
  4. Differences from the upstream API implementation

Alternative deployments

  1. Pre-built binaries
  2. Creating a systemd service
  3. Third-party packages
  4. Deployment examples
  5. Disable the admin token

Other Information

  1. Importing data from Keepass or KeepassX
  2. Changing persistent data location
  3. Syncing users from LDAP
  4. Caddy 2.x with Cloudflare DNS
  5. Logrotate example

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