CyberArk configuration

This section explains how to configure Zabbix to retrieve secrets from CyberArk Vault CV12.

The vault should be installed and configured as per the official CyberArk documentation.

To learn about configuring TLS in Zabbix, see Storage of secrets section.

Database credentials

Access to a secret with database credentials is configured for each Zabbix component separately.

Server and proxies

To obtain database credentials for Zabbix server or proxy from the vault, specify the following configuration parameters in the configuration file:

• Vault - specifies which vault provider should be used.
  
• VaultURL - vault server HTTP[S] URL.
• VaultDBPath - query to the vault secret containing database credentials. The credentials will be retrieved by keys 'Content' and 'UserName'.
• VaultTLSCertFile, VaultTLSKeyFile - SSL certificate and key file names. Setting up these options is not mandatory, but highly recommended.

Zabbix server and Zabbix proxy read the vault-related configuration parameters from zabbix_server.conf and zabbix_proxy.conf upon startup.

Example

In zabbix_server.conf, specify:

Vault=CyberArk
       VaultURL=https://127.0.0.1:1858
       VaultDBPath=zabbix_server&Query=Safe=passwordSafe;Object=zabbix_server_database
       VaultTLSCertFile=cert.pem
       VaultTLSKeyFile=key.pem 

Zabbix will send the following API request to the vault:

$ curl \
       --header "Content type: application/json" \
       --cert cert.pem \
       --key key.pem \
       https://127.0.0.1:1858/AIMWebService/api/Accounts?AppID=zabbix_server&Query=Safe=passwordSafe;Object=zabbix_server_database

Vault response, from which the keys "Content" and "UserName" should be retrieved:

{
       "Content": <password>,
       "UserName": <username>,
       "Address": <address>,
       "Database" :<Database>,
       "PasswordChangeInProcess":<PasswordChangeInProcess>
       }

As a result, Zabbix will use the following credentials for database authentication:

• Username: <username>
• Password: <password>

Frontend

To obtain database credentials for Zabbix frontend from the vault, specify required settings during frontend installation.

At the Configure DB Connection step, set Store credentials in parameter to CyberArk Vault.

Then, fill in additional parameters:

User macro values

To use CyberArk Vault for storing Vault secret user macro values:

• Set the Vault provider parameter in the Administration -> General -> Other web interface section to CyberArk Vault.

• Make sure that Zabbix server is configured to work with CyberArk Vault.

The macro value should contain a query (as query:key).

See Vault secret macros for detailed information about macro value processing by Zabbix.

Query syntax

The colon symbol (:) is reserved for separating the query from the key. If a query itself contains a forward slash or a colon, these symbols should be URL-encoded (/ is encoded as %2F, : is encoded as %3A).

Example

In Zabbix: add user macro {$PASSWORD} with type Vault secret and value: AppID=zabbix_server&Query=Safe=passwordSafe;Object=zabbix:Content

Zabbix will send API request to the vault:

$ curl \
       --header "Content type: application/json" \
       --cert cert.pem \
       --key key.pem \
       https://127.0.0.1:1858/AIMWebService/api/Accounts?AppID=zabbix_server&Query=Safe=passwordSafe;Object=zabbix_server_database

Vault response, from which the key "Content" should be retrieved:

{
       "Content": <password>,
       "UserName": <username>,
       "Address": <address>,
       "Database" :<Database>,
       "PasswordChangeInProcess":<PasswordChangeInProcess>
       }

Macro resolves to the value: <password>

Update existing configuration

To update an existing configuration for retrieving secrets from a CyberArk Vault:

1. Update the Zabbix server or proxy configuration file parameters as described in the Database credentials section.

2. Update the DB connection settings by reconfiguring Zabbix frontend and specifying the required parameters as described in the Frontend section. To reconfigure Zabbix frontend, open the frontend setup URL in the browser:

• for Apache: http://<server_ip_or_name>/zabbix/setup.php
• for Nginx: http://<server_ip_or_name>/setup.php

Alternatively, these parameters can be set in the frontend configuration file (zabbix.conf.php):

$DB['VAULT']                    = 'CyberArk';
       $DB['VAULT_URL']                = 'https://127.0.0.1:1858';
       $DB['VAULT_DB_PATH']            = 'AppID=foo&Query=Safe=bar;Object=buzz';
       $DB['VAULT_TOKEN']              = '';
       $DB['VAULT_CERT_FILE']          = 'conf/certs/cyberark-cert.pem';
       $DB['VAULT_KEY_FILE']           = 'conf/certs/cyberark-key.pem';

3. Configure user macros as described in the User macro values section, if necessary.

To update an existing configuration for retrieving secrets from a HashiCorp Vault, see HashiCorp configuration.