448 lines
15 KiB
ReStructuredText
448 lines
15 KiB
ReStructuredText
Upgrade from 2.0.x to 2.0.y
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===========================
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Please apply general caution as you would with any software: have
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backups and a rollback plan ready!
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.. danger::
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If you have
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:doc:`installed LemonLDAP::NG from official RPMs<installrpm>`, you may
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run into bug
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`#1757 <https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1757>`__
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and lose your Apache configuration files while updating from
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LemonLDAP::NG 2.0.0 or 2.0.1 to later versions. Please backup your
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``/etc/httpd/conf.d/z-lemonldap-ng-*.conf`` files before the
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update.
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2.0.8
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-----
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- New dependency: Perl module Time::Fake is now required to run unit
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test and build packages, but should not be mandatory to run the
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software.
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- Nginx configuration: some changes are required to allow IPv6, see
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`#2152 <https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/2152>`__
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- Option ``singleSessionUserByIP`` was removed, see
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`#2159 <https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/2159>`__
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- A memory leak was found in perl-fcgi with Perl < 5.18, a workaround
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is possible with Apache and llng-fastcgi-server, see
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`#1314 <https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1314>`__
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- With Apache: set ``FcgidMaxRequestsPerProcess 500`` in portal
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virtual host
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- With llng-fastcgi-server: set ``PM_MAX_REQUESTS=500`` in
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llng-fastcgi-server service configuration
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- Cookie ``SameSite`` value: to avoid problems with recent browsers,
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SAML POST binding, LLNG cookies are now tagged as
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"**SameSite=None**". You can change this value using manager,
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"**SameSite=Lax**" is best for installations without federations.
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**Important note**: if you're using an unsecured connection *(http://
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instead of https://)*, "SameSite=None" will be ignored by browsers
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and users that already have a valid session might be prompted to
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login again.
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- OAuth2.0 Handler: a VHost protected by the OAuth2.0 handler will now
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return a 401 when called without an Access Token, instead of
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redirecting to the portal, as specified by
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`RFC6750 <https://tools.ietf.org/html/rfc6750>`__
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- If you encounter the following issue:
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::
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AH01630: client denied by server configuration: /usr/share/lemonldap-ng/manager/api/api.fcgi
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when trying to access the portal. It probably comes from incorrect
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Apache configuration. Remove the (optional and disabled by default)
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manager API config:
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::
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rm /etc/httpd/conf.d/z-lemonldap-ng-api.conf && systemctl reload httpd
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.. _section-1:
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2.0.7
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-----
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- Security:
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- `#2040 <https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/2040>`__:
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Configuration of a redirection URI for an OpenID Connect Relying
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Party is now mandatory, as defined in the specifications. If you
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save your configuration, you will have an error if some of your RP
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don't have a redirect URI configured.
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- `#1943 <https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1943>`__
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/
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`CVE-2019-19791 <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19791>`__:
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along with the patch provided in 2.0.7 in
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``Lemonldap/NG/Common/PSGI/Request.pm``, Apache rewrite rule must
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be updated to avoid an unprotected access to REST services:
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::
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portal-apache2.conf
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.. code-block:: apache
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RewriteCond "%{REQUEST_URI}" "!^/(?:(?:static|javascript|favicon).*|.*\.fcgi(?:/.*)?)$"
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RewriteRule "^/(.+)$" "/index.fcgi/$1" [PT]
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::
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manager-apache2.conf
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.. code-block:: apache
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RewriteCond "%{REQUEST_URI}" "!^/(?:static|doc|lib|javascript|favicon).*"
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RewriteRule "^/(.+)$" "/manager.fcgi/$1" [PT]
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- Other:
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- Option ``checkTime`` was enabled by default in
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``lemonldap-ng.ini``, this let the portal check the configuration
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immediately instead of waiting for configuration cache expiration.
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You can keep this option enabled unless you need strong
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:doc:`performances<performances>`.
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- Removed parameters:
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- ``samlIdPResolveCookie``
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.. _section-2:
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2.0.6
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-----
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- Option was added to display generate password box in
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:doc:`password reset by mail plugin<resetpassword>`. If you use this
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feature, you must enable this option, which is disabled by default.
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- If you use the default \_whatToTrace macro and a case insensitive
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authentication backend, then a user can generate several persistent
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sessions for the same login (see `issue
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1869 <https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1869>`__).
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This can lead to a security bug if you enabled 2FA, which rely on
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data stored in the persistent session. To fix this, either choose a
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unique attribute for \_whatToTrace, either force lower case in your
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macro:
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.. code-block:: perl
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$_auth eq 'SAML' ? lc($_user.'@'.$_idpConfKey) : $_auth eq 'OpenIDConnect' ? lc($_user.'@'.$_oidc_OP) : lc($_user)
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- On CentOS 7 / RHEL 7, a system upgrade breaks ImageMagick, which is
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used to display captchas (see
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`#1951 <https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/issues/1951>`__).
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To fix this, you can run the following commands:
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::
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yum install -y urw-base35-fonts-legacy
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sed 's,/usr/share/fonts/default/Type1/,/usr/share/X11/fonts/urw-fonts/,g' -i /etc/ImageMagick/type-ghostscript.xml
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.. _section-3:
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2.0.5
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-----
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- The Text::Unidecode perl module becomes a requirement *(it will be
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automatically installed if you upgrade from from the deb or RPM
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repositories)*
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- CAS logout starts validating the service= parameter, but only if you
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use the CAS Access control policy. The URL sent in the service=
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parameter will be checked against
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:ref:`known CAS applications<idpcas-configuring-cas-applications>`,
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Virtual Hosts, and
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:ref:`trusted domains<security-configure-security-settings>`. Add
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your target domain to trusted domains if you suddenly start having
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"Invalid URL" messages on logout
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- Improvements in cryptographic functions: to take advantage of them,
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**you must change the encryption key** of LemonLDAP::NG (see
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:ref:`CLI example<cli-examples-encryption-key>`).
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- Debian packaging: FastCGI / uWsgi servers require llng-lmlog.conf and
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llng-lua-headers.conf. Those configuration files are now provided by
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lemonldap-ng-handler package and installed in /etc/nginx/snippets
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directory.
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Upgrade from 1.9 to 2.0
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=======================
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.. attention::
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2.0 is a major release, lot of things have been changed.
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You must read this document before upgrade.
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Upgrade order from 1.9.\*
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-------------------------
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As usual, if you use more than 1 server and don't want to stop SSO
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service AND IF YOU HAVE NO INCOMPATIBILITY MENTIONED IN THIS DOCUMENT,
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upgrade must be done in the following order:
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#. servers with handlers only;
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#. portal servers *(all together if your load balancer is stateless
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(user or client IP) and if users use the menu)*;
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#. manager server
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.. attention::
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You must revalidate your configuration using the
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manager.
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Installation
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------------
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.. attention::
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French documentation is no more available. Only English
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version of this documentation is maintained now.
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This release of LL::NG requires these minimal versions of GNU/Linux
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distributions:
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- Debian 9 (stretch)
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- Ubuntu 16.04 LTS
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- CentOS 7
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- RHEL 7
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For SAML features, we require at least Lasso 2.5 and we recommend Lasso
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2.6.
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Configuration
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-------------
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- **lemonldap-ng.ini** requires some new fields in portal section.
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Update yours using the one given installed by default. New requires
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fields are:
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- **staticPrefix** *(manager and portal)*: the path to static
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content
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- **templateDir** *(manager and portal)*: the path to templates
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directory
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- **languages** *(manager and portal)*: accepted languages
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- Portal skins are now in ``/usr/share/lemonldap-ng/portal/templates``.
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See :ref:`skin customization<portalcustom-skin-customization>` to
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adapt your templates.
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- User module in authentication parameters now provides a "Same as
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authentication" value. You must revalidate it in the manager since
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all special values must be replaced by this *(Multi, Choice, Proxy,
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Slave, SAML, OpenID*,...)*
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- **"Multi" doesn't exist anymore**: it is replaced by
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:doc:`Combination<authcombination>`, a more powerful module.
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- Apache and Nginx configurations must be updated to use FastCGI portal
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- URLs for mail reset and register pages have changed, you must update
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configuration parameters. For example:
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::
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mailUrl => 'http://auth.example.com/resetpwd',
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registerUrl => 'http://auth.example.com/register',
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- Option ``trustedProxies`` was removed, you must now configure your
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Web Server to manage ``X-Forwarded-For`` header, see
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:doc:`how to run LL::NG behind a reverse proxy<behindproxyminihowto>`.
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.. attention::
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Apache mod_perl has got lot of troubleshooting problems
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since 2.4 version (many segfaults,...), especially when using MPM
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worker or MPM event. That's why LL::NG doesn't use anymore
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ModPerl::Registry: all is now handled by FastCGI (portal and manager),
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except for Apache2 Handler.
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**For Handlers, it is now recommended to migrate to Nginx**, but Apache
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2.4 is still supported with MPM prefork.
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Configuration refresh
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~~~~~~~~~~~~~~~~~~~~~
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Now portal has the same behavior than handlers: it looks to
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configuration stored in local cache every 10 minutes. So it has to be
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reload like every handler.
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.. attention::
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If you want to use reload mechanism on a portal only
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host, you must install a handler in Portal host to be able to refresh
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local cache. Include ``handler-nginx.conf`` or ``handler-apache2.conf``
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for example
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LDAP connection
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---------------
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Now LDAP connections are kept open to improve performances. To allow
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that, LL::NG requires an anonymous access to LDAP RootDSE entry to check
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connection.
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Kerberos or SSL usage
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---------------------
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- A new :doc:`Kerberos<authkerberos>` authentication backend has been
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added since 2.0. This module solves many Kerberos integration
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problems *(usage in conjunction with other backends, better error
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display,…)*. However, you can retain the old integration manner
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(using :doc:`Apache authentication module<authapache>`).
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- For :doc:`SSL<authssl>`, a new :doc:`Ajax option<authssl>` can be
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used in the same idea: so SSL can be used in conjunction with other
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backends.
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Logs
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----
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- **Syslog**: logs are now configured in ``lemonldap-ng.ini`` file
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only. If you use Syslog, you must reconfigure it. See
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:doc:`logs<logs>` for more.
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- **Apache2**: Portal doesn't use anymore Apache2 logger. Logs are
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always written to Apache error.log but Apache "LogLevel" parameter
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has no more effect on it. Portal is now a FastCGI application and
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doesn't use anymore ModPerl. See :doc:`logs<logs>` for more.
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- If you are running behind a proxy, make sure LemonLDAP::NG can
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:doc:`see the original IP address<behindproxyminihowto>`
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of incoming HTTP connections
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Security
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--------
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LLNG portal now embeds the following features:
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- `CSRF <https://en.wikipedia.org/wiki/Cross-site_request_forgery>`__
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protection *(Cross-Site Request Forgery)*: a token is build for each
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form. To disable it, set requireToken to 0 *(portal security
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parameters in the manager)*
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- `Content-Security-Policy <https://en.wikipedia.org/wiki/Content_Security_Policy>`__
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header: portal build dynamically this header. You can modify default
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values in the manager *(Général parameters » Advanced parameters »
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Security » Content-Security-Policy)*
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Handlers
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--------
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- **Apache only**:
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- **Apache handler** is now Lemonldap::NG::Handler::ApacheMP2 and
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Menu is now Lemonldap::NG::Handler::ApacheMP2::Menu
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- because of an Apache behaviour change, PerlHeaderParserHandler
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must no more be used with "reload" URLs *(replaced by
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PerlResponseHandler)*. Any "reload url" that are inside a
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protected vhost must be unprotected in vhost rules *(protection
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has to be done by web server configuration)*.
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- :doc:`CDA<cda>`,
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:doc:`ZimbraPreAuth<applications/zimbra>`,
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:doc:`SecureToken<securetoken>` and
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:doc:`AuthBasic<handlerauthbasic>` are now
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:doc:`Handler Types<handlerarch>`. So there is no
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more special file to load: you just have to choose "VirtualHost type"
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in the manager/VirtualHosts.
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- :doc:`SSOCookie<ssocookie>`: Since Firefox 60 and
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Chrome 68, "+2d, +5M, 12h and so on..." cookie expiration time
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notation is no more supported. CookieExpiration value is a number of
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seconds until the cookie expires. A zero or negative number will
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expire the cookie immediately.
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Rules and headers
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-----------------
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* hostname() and remote_ip() are no more provided to avoid some name conflicts *replaced by `$ENV{}`)*
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* `$ENV{<cgi_variable>}` is now available everywhere: see :doc:`writingrulesand_headers`
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* some variable names have changed. See :doc:`variables` document
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Opening conditions
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------------------
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- Rule and message fields have been swaped. You have to modifiy and
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validate again your access rules.
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Supported servers
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-----------------
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- Apache-1.3 files are not provided now. You can build them yourself by
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looking at Apache-2 configuration files
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Ajax requests
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-------------
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Before 2.0, an Ajax query launched after session timeout received a 302
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code. Now a 401 HTTP code is returned. ``WWW-Authenticate`` header
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contains: ``SSO <portal-URL>``
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SOAP/REST services
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------------------
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- SOAP server activation is now split in 2 parameters
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(configuration/sessions). You must set them else SOAP service will be
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disabled
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- Notifications are now REST/JSON by default. You can force old format
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in the manager. Note that SOAP proxy has changed:
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http://portal/notifications now.
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- If you use "adminSessions" endpoint with "singleSession*" features,
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you must upgrade all portals simultaneously
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- SOAP services can be replaced by new REST services
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.. attention::
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\ :doc:`AuthBasic Handler<handlerauthbasic>` uses now
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REST services instead of SOAP.
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CAS
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---
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CAS authentication module no more use perl CAS client, but our own code.
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You can now define several CAS servers in a specific branch in Manager,
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like you can define several SAML or OpenID Connect providers.
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CAS issuer module has also been improved, you must modify the
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configuration of CAS clients to move them from virtual host branch to
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CAS client branch.
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Developer corner
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----------------
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APIs
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~~~~
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Portal has now many REST features and includes an API plugin. See Portal
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manpages to learn how to write auth modules, issuers or other features.
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Portal overview
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~~~~~~~~~~~~~~~
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Portal is no more a single CGI object. Since 2.0, It is based on
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Plack/PSGI and Mouse modules. Little resume
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::
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Portal object
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+-> auth module
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+-> userDB module
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+-> issuer modules
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+-> other plugins (notification,...)
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Requests are independent objects based on
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Lemonldap::NG::Portal::Main::Request which inherits from
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Lemonldap::NG::Common::PSGI::Request which inherits from Plack::Request.
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See manpages for more.
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Handler
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~~~~~~~
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Handler libraries have been totally rewritten. If you've made custom
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handlers, they must be rewritten, see
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:doc:`customhandlers<customhandlers>`.
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If you used self protected CGI, you also need to rewrite them, see
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:ref:`documentation<selfmadeapplication-perl-auto-protected-cgi>`.
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