SAML 2.0 authentication can be used to sign in to Zabbix.
If only SAML sign-in is configured, then the user must also exist in Zabbix, however, its Zabbix password will not be used. If authentication is successful, then Zabbix will match a local username with the username attribute returned by SAML.
It is possible to configure JIT (just-in-time) user provisioning for SAML users. In this case, it is not required that a user already exists in Zabbix. The user account can be created when the user logs into Zabbix for the first time.
If JIT provisioning is enabled, a user group for deprovisioned users must be specified in the Authentication tab.
On top of JIT provisioning it is also possible to enable and configure SCIM provisoning - continuous user account management for those users that have been created by user provisioning. SCIM provisioning requires a Zabbix API token (with Super admin permissions) for authentication into Zabbix.
User provisioning without enabled and configured SCIM is made only for the login action.
Only users created by provisioning will be updated by the SCIM provisioning step; already existing SAML users will not be not provisioned. Only valid media will be added to user on provisioning action.
If SAML authentication is enabled, users will be able to choose between logging in locally or via SAML single sign-on. If JIT provisioning is used, then only single sign-on is possible.
In order to work with Zabbix, a SAML identity provider (onelogin.com, auth0.com, okta.com, etc.) needs to be configured in the following way:
It is required to install php-openssl if you want to use SAML authentication in the frontend.
To use SAML authentication Zabbix should be configured in the following way:
1. Private key and certificate should be stored in the ui/conf/certs/, unless custom paths are provided in zabbix.conf.php.
By default, Zabbix will look in the following locations:
2. All of the most important settings can be configured in the Zabbix frontend. However, it is possible to specify additional settings in the configuration file.
Configuration parameters, available in the Zabbix frontend:
|Enable SAML authentication||Mark the checkbox to enable SAML authentication.|
|Enable JIT provisioning||Mark the checkbox to enable JIT user provisioning.|
|IDP entity ID||The unique entity identifier within the SAML identity provider.|
|SSO service URL||The URL users will be redirected to when logging in.|
|SLO service URL||The URL users will be redirected to when logging out. If left empty, the SLO service will not be used.|
|Username attribute||SAML attribute to be used as a username when logging into Zabbix.
The list of supported values is determined by the identity provider.
|SP entity ID||The unique service provider identifier (if not matching, the operation will be rejected).
It is possible to specify a URL or any string of data.
|SP name ID format||Defines which name identifier format should be used.
|Sign||Mark the checkboxes to select entities for which SAML signature should be enabled:
|Encrypt||Mark the checkboxes to select entities for which SAML encryption should be enabled:
|Case-sensitive login||Mark the checkbox to enable case-sensitive login (disabled by default) for usernames.
E.g. disable case-sensitive login and log in with, for example, 'ADMIN' user even if the Zabbix user is 'Admin'.
Note that with case-sensitive login disabled the login will be denied if multiple users exist in Zabbix database with similar usernames (e.g. Admin, admin).
|Configure JIT provisioning||Mark this checkbox to show options related to JIT user provisioning.|
|Group name attribute||Specify the group name attribute for JIT user privisioning.|
|User name attribute||Specify the user name attribute for JIT user privisioning.|
|User last name attribute||Specify the user last name attribute for JIT user privisioning.|
|User group mapping||Map a SAML user group pattern to Zabbix user group and user role.
This is required to determine what user group/role the provisioned user will get in Zabbix.
Click on Add to add a mapping.
The SAML group pattern field supports wildcards. The group name must match an existing group.
If a SAML user matches several Zabbix user groups, the user becomes a member of all of them.
If a user matches several Zabbix user roles, the user will get the highest permission level among them.
|Media type mapping||Map the user's SAML media attributes (e.g. email) to Zabbix user media for sending notifications.|
|Enable SCIM provisioning||Mark this checkbox to enable SCIM 2.0 provisioning.|
See example of configuring Okta as SAML identity provider for sign-in and JIT/SCIM user provisioning.
Additional SAML parameters can be configured in the Zabbix frontend configuration file (zabbix.conf.php):
Zabbix uses OneLogin's SAML PHP Toolkit library (version 3.4.1). The structure of $SSO['SETTINGS'] section should be similar to the structure used by the library. For the description of configuration options, see official library documentation.
Only the following options can be set as part of $SSO['SETTINGS']:
All other options will be taken from the database and cannot be overridden. The debug option will be ignored.
In addition, if Zabbix UI is behind a proxy or a load balancer, the custom use_proxy_headers option can be used:
If using a load balancer to connect to Zabbix instance, where the load balancer uses TLS/SSL and Zabbix does not, you must indicate 'baseurl', 'strict' and 'use_proxy_headers' parameters as follows:
$SSO_SETTINGS=['strict' => false, 'baseurl' => "https://zabbix.example.com/zabbix/", 'use_proxy_headers' => true]