Merge branch 'master' into new-release-mailu

core/admin/mailu/configuration.py

@@ -44,7 +44,7 @@ DEFAULT_CONFIG = {
     'AUTH_RATELIMIT_IP': '5/hour',
     'AUTH_RATELIMIT_IP_V4_MASK': 24,
     'AUTH_RATELIMIT_IP_V6_MASK': 48,
-    'AUTH_RATELIMIT_USER': '100/day',
+    'AUTH_RATELIMIT_USER': '50/day',
     'AUTH_RATELIMIT_EXEMPTION': '',
     'AUTH_RATELIMIT_EXEMPTION_LENGTH': 86400,
     'DISABLE_STATISTICS': False,

core/admin/mailu/internal/nginx.py

@@ -85,6 +85,7 @@ def handle_authentication(headers):
         raw_user_email = urllib.parse.unquote(headers["Auth-User"])
         raw_password = urllib.parse.unquote(headers["Auth-Pass"])
         user_email = 'invalid'
+        password = 'invalid'
         try:
             user_email = raw_user_email.encode("iso8859-1").decode("utf8")
             password = raw_password.encode("iso8859-1").decode("utf8")
@@ -107,6 +108,7 @@ def handle_authentication(headers):
                         "Auth-Server": server,
                         "Auth-User": user_email,
                         "Auth-User-Exists": is_valid_user,
+                        "Auth-Password": password,
                         "Auth-Port": port
                     }
         status, code = get_status(protocol, "authentication")
@@ -115,6 +117,7 @@ def handle_authentication(headers):
             "Auth-Error-Code": code,
             "Auth-User": user_email,
             "Auth-User-Exists": is_valid_user,
+            "Auth-Password": password,
             "Auth-Wait": 0
         }
     # Unexpected

core/admin/mailu/internal/views/auth.py

@@ -48,7 +48,7 @@ def nginx_authentication():
     if headers.get("Auth-Status") == "OK":
         utils.limiter.exempt_ip_from_ratelimits(client_ip)
     elif is_valid_user:
-        utils.limiter.rate_limit_user(username, client_ip)
+        utils.limiter.rate_limit_user(username, client_ip, password=response.headers.get('Auth-Password', None))
     elif not is_from_webmail:
         utils.limiter.rate_limit_ip(client_ip, username)
     return response

core/admin/mailu/limiter.py

@@ -68,9 +68,13 @@ class LimitWraperFactory(object):
             app.logger.warn(f'Authentication attempt from {ip} for {username} has been rate-limited.')
         return is_rate_limited
 
-    def rate_limit_user(self, username, ip, device_cookie=None, device_cookie_name=None):
+    def rate_limit_user(self, username, ip, device_cookie=None, device_cookie_name=None, password=''):
         limiter = self.get_limiter(app.config["AUTH_RATELIMIT_USER"], 'auth-user')
         if self.is_subject_to_rate_limits(ip):
+            truncated_password = hmac.new(bytearray(username, 'utf-8'), bytearray(password, 'utf-8'), 'sha256').hexdigest()[-6:]
+            if password and (self.storage.get(f'dedup2-{username}-{truncated_password}') > 0):
+                return
+            self.storage.incr(f'dedup2-{username}-{truncated_password}', limits.parse(app.config['AUTH_RATELIMIT_USER']).GRANULARITY.seconds, True)
             limiter.hit(device_cookie if device_cookie_name == username else username)
 
     """ Device cookies as described on:

core/admin/mailu/sso/views/base.py

@@ -59,7 +59,7 @@ def login():
                 flask.flash(msg, "error")
             return response
         else:
-            utils.limiter.rate_limit_user(username, client_ip, device_cookie, device_cookie_username) if models.User.get(username) else utils.limiter.rate_limit_ip(client_ip, username)
+            utils.limiter.rate_limit_user(username, client_ip, device_cookie, device_cookie_username, form.pw.data) if models.User.get(username) else utils.limiter.rate_limit_ip(client_ip, username)
             flask.current_app.logger.warn(f'Login failed for {username} from {client_ip}.')
             flask.flash('Wrong e-mail or password', 'error')
     return flask.render_template('login.html', form=form, fields=fields)

core/admin/mailu/ui/forms.py

@@ -128,6 +128,12 @@ class UserPasswordForm(flask_wtf.FlaskForm):
     pwned = fields.HiddenField(label='', default=-1)
     submit = fields.SubmitField(_('Update password'))
 
+class UserPasswordChangeForm(flask_wtf.FlaskForm):
+    current_pw = fields.PasswordField(_('Current password'), [validators.DataRequired()])
+    pw = fields.PasswordField(_('Password'), [validators.DataRequired()])
+    pw2 = fields.PasswordField(_('Password check'), [validators.DataRequired()])
+    pwned = fields.HiddenField(label='', default=-1)
+    submit = fields.SubmitField(_('Update password'))
 
 class UserReplyForm(flask_wtf.FlaskForm):
     reply_enabled = fields.BooleanField(_('Enable automatic reply'))

core/admin/mailu/ui/templates/sidebar.html

@@ -20,7 +20,7 @@
         </a>
       </li>
       <li class="nav-item" role="none">
-        <a href="{{ url_for('.user_password') }}" class="nav-link" role="menuitem">
+        <a href="{{ url_for('.user_password_change') }}" class="nav-link" role="menuitem">
           <i class="nav-icon fa fa-lock"></i>
           <p>{% trans %}Update password{% endtrans %}</p>
         </a>

core/admin/mailu/ui/views/users.py

@@ -99,18 +99,13 @@ def user_settings(user_email):
                 flask.url_for('.user_list', domain_name=user.domain.name))
     return flask.render_template('user/settings.html', form=form, user=user)
 
-
-@ui.route('/user/password', methods=['GET', 'POST'], defaults={'user_email': None})
-@ui.route('/user/password/<path:user_email>', methods=['GET', 'POST'])
-@access.owner(models.User, 'user_email')
-def user_password(user_email):
+def _process_password_change(form, user_email):
     user_email_or_current = user_email or flask_login.current_user.email
     user = models.User.query.get(user_email_or_current) or flask.abort(404)
-    form = forms.UserPasswordForm()
     if form.validate_on_submit():
         if form.pw.data != form.pw2.data:
             flask.flash('Passwords do not match', 'error')
-        else:
+        elif user_email or models.User.login(user_email_or_current, form.current_pw.data):
             if msg := utils.isBadOrPwned(form):
                 flask.flash(msg, "error")
                 return flask.render_template('user/password.html', form=form, user=user)
@@ -121,8 +116,19 @@ def user_password(user_email):
             if user_email:
                 return flask.redirect(flask.url_for('.user_list',
                     domain_name=user.domain.name))
+        else:
+            flask.flash('Wrong current password', 'error')
     return flask.render_template('user/password.html', form=form, user=user)
 
+@ui.route('/user/password', methods=['GET', 'POST'], defaults={'user_email': None})
+@access.owner(models.User, 'user_email')
+def user_password_change(user_email):
+    return _process_password_change(forms.UserPasswordChangeForm(), user_email)
+
+@ui.route('/user/password/<path:user_email>', methods=['GET', 'POST'])
+@access.domain_admin(models.User, 'user_email')
+def user_password(user_email):
+    return _process_password_change(forms.UserPasswordForm(), user_email)
 
 @ui.route('/user/reply', methods=['GET', 'POST'], defaults={'user_email': None})
 @ui.route('/user/reply/<path:user_email>', methods=['GET', 'POST'])

docs/compose/.env

@@ -135,12 +135,6 @@ WEBSITE=https://mailu.io
 # Advanced settings
 ###################################
 
-# Log driver for front service. Possible values:
-# json-file (default)
-# journald (On systemd platforms, useful for Fail2Ban integration)
-# syslog (Non systemd platforms, Fail2Ban integration. Disables `docker compose log` for front!)
-LOG_DRIVER=json-file
-
 # Docker-compose project name, this will prepended to containers names.
 COMPOSE_PROJECT_NAME=mailu
 

docs/compose/docker-compose.yml

@@ -9,7 +9,9 @@ services:
     restart: always
     env_file: .env
     logging:
-      driver: $LOG_DRIVER
+      driver: journald
+      options:
+        tag: mailu-front
     ports:
     - "$BIND_ADDRESS4:80:80"
     - "$BIND_ADDRESS4:443:443"
@@ -43,6 +45,10 @@ services:
     image: mailu/dovecot:$VERSION
     restart: always
     env_file: .env
+    logging:
+      driver: journald
+      options:
+        tag: mailu-imap
     volumes:
       - "$ROOT/mail:/mail"
       - "$ROOT/overrides/dovecot:/overrides:ro"
@@ -53,6 +59,10 @@ services:
     image: mailu/postfix:$VERSION
     restart: always
     env_file: .env
+    logging:
+      driver: journald
+      options:
+        tag: mailu-smtp
     volumes:
       - "$ROOT/mailqueue:/queue"
       - "$ROOT/overrides/postfix:/overrides:ro"
@@ -63,6 +73,10 @@ services:
     image: mailu/rspamd:$VERSION
     restart: always
     env_file: .env
+    logging:
+      driver: journald
+      options:
+        tag: mailu-antispam
     volumes:
       - "$ROOT/filter:/var/lib/rspamd"
       - "$ROOT/dkim:/dkim:ro"
@@ -88,6 +102,10 @@ services:
     image: mailu/admin:$VERSION
     restart: always
     env_file: .env
+    logging:
+      driver: journald
+      options:
+        tag: mailu-admin
     volumes:
       - "$ROOT/data:/data"
       - "$ROOT/dkim:/dkim"

docs/compose/traefik/docker-compose.yml

@@ -35,8 +35,6 @@ services:
     image: mailu/nginx:$VERSION
     restart: always
     env_file: .env
-    logging:
-      driver: $LOG_DRIVER
     labels: # Traefik labels for simple reverse-proxying
       - "traefik.enable=true"
       - "traefik.port=80"

docs/configuration.rst

@@ -47,10 +47,11 @@ accounts for a specific IP subnet as defined in
 ``AUTH_RATELIMIT_IP_V4_MASK`` (default: /24) and
 ``AUTH_RATELIMIT_IP_V6_MASK`` (default: /48).
 
-The ``AUTH_RATELIMIT_USER`` (default: 100/day) holds a security setting for fighting
+The ``AUTH_RATELIMIT_USER`` (default: 50/day) holds a security setting for fighting
 attackers that attempt to guess a user's password (typically using a password
-bruteforce attack). The value defines the limit of authentication attempts allowed
-for any given account within a specific timeframe.
+bruteforce attack). The value defines the limit of distinct authentication attempts
+allowed for any given account within a specific timeframe. Multiple attempts for the
+same account with the same password only counts for one.
 
 The ``AUTH_RATELIMIT_EXEMPTION_LENGTH`` (default: 86400) is the number of seconds
 after a successful login for which a specific IP address is exempted from rate limits.

docs/faq.rst

@@ -579,8 +579,7 @@ down brute force attacks. The same applies to login attempts via the single sign
 We *do* provide a possibility to export the logs from the ``front`` service and ``Admin`` service to the host.
 The ``front`` container logs failed logon attempts on SMTP, IMAP and POP3.
 The ``Admin`` container logs failed logon attempt on the single sign on page.
-For this you need to set ``LOG_DRIVER=journald`` or ``syslog``, depending on the log
-manager of the host. You will need to setup the proper Regex in the Fail2Ban configuration.
+You will need to setup the proper Regex in the Fail2Ban configuration.
 Below an example how to do so.
 
 If you use a reverse proxy in front of Mailu, it is vital to set the environment variables REAL_IP_HEADER and REAL_IP_FROM.

setup/flavors/compose/docker-compose.yml

@@ -26,7 +26,9 @@ services:
     restart: always
     env_file: {{ env }}
     logging:
-      driver: {{ log_driver or 'json-file' }}
+      driver: journald
+      options:
+        tag: mailu-front
     ports:
     {% for port in (80, 443, 25, 465, 587, 110, 995, 143, 993) %}
     {% if bind4 %}
@@ -38,8 +40,12 @@ services:
     {% endfor %}
     networks:
       - default
+{% if webmail_type != 'none' %}
       - webmail
+{% endif %}
+{% if webdav_enabled %}
       - radicale
+{% endif %}
     volumes:
       - "{{ root }}/certs:/certs"
       - "{{ root }}/overrides/nginx:/overrides:ro"
@@ -62,6 +68,10 @@ services:
     image: ${DOCKER_ORG:-ghcr.io/mailu}/${DOCKER_PREFIX:-}admin:${MAILU_VERSION:-{{ version }}}
     restart: always
     env_file: {{ env }}
+    logging:
+      driver: journald
+      options:
+        tag: mailu-admin
     {% if not admin_enabled %}
     ports:
       - 127.0.0.1:8080:80
@@ -81,6 +91,10 @@ services:
     image: ${DOCKER_ORG:-ghcr.io/mailu}/${DOCKER_PREFIX:-}dovecot:${MAILU_VERSION:-{{ version }}}
     restart: always
     env_file: {{ env }}
+    logging:
+      driver: journald
+      options:
+        tag: mailu-imap
     volumes:
       - "{{ root }}/mail:/mail"
       - "{{ root }}/overrides/dovecot:/overrides:ro"
@@ -96,6 +110,10 @@ services:
     image: ${DOCKER_ORG:-ghcr.io/mailu}/${DOCKER_PREFIX:-}postfix:${MAILU_VERSION:-{{ version }}}
     restart: always
     env_file: {{ env }}
+    logging:
+      driver: journald
+      options:
+        tag: mailu-smtp
     volumes:
       - "{{ root }}/mailqueue:/queue"
       - "{{ root }}/overrides/postfix:/overrides:ro"
@@ -127,6 +145,10 @@ services:
     hostname: antispam
     restart: always
     env_file: {{ env }}
+    logging:
+      driver: journald
+      options:
+        tag: mailu-antispam
 {% if oletools_enabled %}
     networks:
       - default

setup/flavors/compose/mailu.env

@@ -158,12 +158,6 @@ DOMAIN_REGISTRATION=true
 # Advanced settings
 ###################################
 
-# Log driver for front service. Possible values:
-# json-file (default)
-# journald (On systemd platforms, useful for Fail2Ban integration)
-# syslog (Non systemd platforms, Fail2Ban integration. Disables `docker compose log` for front!)
-# LOG_DRIVER={{ log_driver or 'json-file' }}
-
 # Docker-compose project name, this will prepended to containers names.
 COMPOSE_PROJECT_NAME={{ compose_project_name or 'mailu' }}
 

setup/templates/steps/config.html

@@ -47,7 +47,7 @@ Or in plain english: if receivers start to classify your mail as spam, this post
   <label>Authentication rate limit per user</label>
   <!--   Validates number input only -->
   <p><input class="form-control" style="width: 9%; display: inline;" type="number" name="auth_ratelimit_user"
-  		value="100" required > / day
+  		value="50" required > / day
   </p>
 </div>
 

towncrier/newsfragments/2726.misc

@@ -0,0 +1 @@
+Change the behaviour of AUTH_RATELIMIT_USER and only account for distinct attempts. Same username and same password is now a only accounted once per period.

towncrier/newsfragments/2733.misc

@@ -0,0 +1 @@
+Ensure we ask for the existing password before processing a password change request.

towncrier/newsfragments/2734.misc

@@ -0,0 +1,2 @@
+Remove LOG_DRIVER which never worked and replace it with journald by default
+Fix a bug where front may get attached to networks that don't exist