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One Identity Safeguard for Privileged Sessions 6.9.5 - Administration Guide

Preface Introduction The concepts of One Identity Safeguard for Privileged Sessions (SPS)
The philosophy of One Identity Safeguard for Privileged Sessions (SPS) Policies Credential Stores Plugin framework Indexing Supported protocols and client applications Modes of operation Connecting to a server through One Identity Safeguard for Privileged Sessions (SPS) Archive and backup concepts Maximizing the scope of auditing IPv6 in One Identity Safeguard for Privileged Sessions (SPS) SSH host keys Authenticating clients using public-key authentication in SSH The gateway authentication process Four-eyes authorization Network interfaces High Availability support in One Identity Safeguard for Privileged Sessions (SPS) Versions and releases of One Identity Safeguard for Privileged Sessions (SPS) Accessing and configuring One Identity Safeguard for Privileged Sessions (SPS)
The Welcome Wizard and the first login Basic settings
Supported web browsers and operating systems The structure of the web interface Network settings Configuring date and time System logging, SNMP and e-mail alerts Configuring system monitoring on SPS Data and configuration backups Archiving and cleanup Using plugins Forwarding data to third-party systems Starling integration
User management and access control Managing One Identity Safeguard for Privileged Sessions (SPS)
Controlling One Identity Safeguard for Privileged Sessions (SPS): reboot, shutdown Managing Safeguard for Privileged Sessions (SPS) clusters Managing a High Availability One Identity Safeguard for Privileged Sessions (SPS) cluster Upgrading One Identity Safeguard for Privileged Sessions (SPS) Managing the One Identity Safeguard for Privileged Sessions (SPS) license Accessing the One Identity Safeguard for Privileged Sessions (SPS) console Sealed mode Out-of-band management of One Identity Safeguard for Privileged Sessions (SPS) Managing the certificates used on One Identity Safeguard for Privileged Sessions (SPS)
General connection settings HTTP-specific settings ICA-specific settings MSSQL-specific settings RDP-specific settings SSH-specific settings Telnet-specific settings VMware Horizon View connections VNC-specific settings Indexing audit trails Using the Search interface Advanced authentication and authorization techniques Reports The One Identity Safeguard for Privileged Sessions (SPS) RPC API The One Identity Safeguard for Privileged Sessions (SPS) REST API One Identity Safeguard for Privileged Sessions (SPS) scenarios Troubleshooting One Identity Safeguard for Privileged Sessions (SPS) Using SPS with SPP Configuring external devices Using SCP with agent-forwarding Security checklist for configuring One Identity Safeguard for Privileged Sessions (SPS) Jumplists for in-product help Configuring SPS to use an LDAP backend Glossary

Creating a new Telnet authentication policy

An authentication policy is a list of authentication methods that can be used in a connection. Connection definitions refer to an authentication policy to determine how the client can authenticate to the target server. Separate authentication methods can be used on the client and the server-side of the connection.

To create a new authentication policy

  1. Navigate to Telnet Control > Authentication Policies, and click .

    Figure 235: Telnet Control > Authentication Policies — Configuring Telnet authentication policies

  2. Enter a name for the policy into the Name field.

  3. Select the authentication method used on the client-side in the One Identity Safeguard for Privileged Sessions (SPS)Authenticate the client to SPS using field. For the client-side connection, SPS can authenticate the client inband (within the Telnet protocol) using the following authentication methods:

    • LDAP: SPS will authenticate the client to the LDAP database set in the LDAP Server of the connection policy. To use LDAP authentication on the client side, select Authenticate the client to SPS using > LDAP.

      NOTE:SPS will authenticate the client-side connection to the LDAP server configured in the connection policy. This is not necessarily the same as the LDAP server used to authenticate the users accessing the SPS web interface.

    • Local user database: Authenticate the client locally on the SPS gateway using a Local user database. Select the database to use in the Local user database field. For details on creating a Local User Database, see Creating a Local User Database.

    • RADIUS: SPS will authenticate the client to the specified RADIUS server. Select Authenticate the client to SPS using > RADIUS, enter the IP address or hostname of the RADIUS server into the Address field, the port number of the RADIUS server into the Port field, and the shared secret of the RADIUS server into the Shared secret field. Only password-authentication is supported (including one-time passwords), challenge-response based authentication is not.

      Use an IPv4 address.

      To add more RADIUS servers, click and fill in the respective fields.

    • None: Do not perform client-side authentication, the client will authenticate only on the target server.

      		 Caution:

      Hazard of security breach. If the None authentication option is selected on the client side and SPS is configured to use public-key or certificate based authentication on the server, the user will not be authenticated at all unless gateway authentication is required for the connection.

  4. Click .

    NOTE: Consider the following:

    • The client-side authentication settings apply for authenticating the user inband to the SPS gateway, and is independent from the gateway authentication performed on the SPS web interface. The web-based gateway authentication is an out-of-band gateway authentication method that can be required by the connection policy. For details on out-of-band gateway authentication, see Configuring out-of-band gateway authentication.

      Gateway authentication on the SPS web interface can be used together with authentication policies. In an extreme setting, this would mean that the user has to perform three authentications: a client-side gateway authentication within the SSH protocol to SPS, an out-of-band gateway authentication on the SPS web interface, and a final authentication on the target server.

    • The Connection Policy will ignore the settings for server-side authentication (set under Relayed authentication methods for SSH protocol) if a Credential Store is used in the Connection Policy.

Extracting username from Telnet connections

For specific devices, it is now possible to extract the username from Telnet connections with the help of patterns (including TN3270 and TN5250 systems).

To select patterns or request a custom pattern

  1. Navigate to Telnet Control > Authentication Policies and enable Extract username from the traffic.

  2. Click Select target devices to display the list of available target devices. Select the respective device(s) in the Available devices column and click Add.

    NOTE: You can only add one TN3270 specific device to the authentication policy.

    To remove a device from the Target devices column, select it and click Remove.

  3. Click OK. The target devices are listed after Selected devices.

  4. If you cannot find your device in the list of available target devices, request a custom Pattern Set. To do this, contact our Support Team.

  5. To upload the custom pattern set you received, navigate to Telnet Control > Pattern Sets, browse for the file and click Upload.

  6. To delete a custom Pattern Set from One Identity Safeguard for Privileged Sessions (SPS), click in the respective row. Generic Pattern Sets cannot be deleted.

Creating and editing protocol-level Telnet settings

Procedure

Telnet settings determine the parameters of the connection on the protocol level, including timeout value, and so on. Complete the following procedure to create a new Telnet settings profile or edit an existing one:

 Caution:

Modifying the Telnet settings is recommended only to advanced users. Do not modify these settings unless you exactly know what you are doing.

To create and edit protocol-level Telnet settings

  1. Navigate to the Settings tab of the Telnet Control menu item and click to create a Telnet setting profile. Enter a name for the profile (for example telnet_special).

  2. Click to display the parameters of the connection.

  3. Modify the parameters as needed. The following parameters are available:

    • Network idle timeout: Connection timeout value in seconds. To avoid early timeout, set it to a larger value, for example a week (604800 seconds).

      Even if the user is not active, the session can contain activity that must be audited (for example, the output of a script). The idle timeout period will start only after this activity has stopped.

      		 Caution:

      Determining if a connection is idle is based on the network traffic generated by the connection, not the activity of the user. For example, if an application or the taskbar of a graphical desktop displays the time which is updated every minute, it generates network traffic every minute, negating the effects of timeout values greater than one minute and preventing One Identity Safeguard for Privileged Sessions (SPS) from closing the connection.

    • User idle timeout: If no user activity is detected, terminate the session after the configured time has passed since the last user activity.

      This can be useful if only user-generated network traffic is important in a session. By using this option, situations described in the caution of Network idle timeout (such as a taskbar clock keeping the network traffic open indefinitely) can be avoided. To enable user idle timeout, select Enable user idle timeout and enter a value that is greater than or equal to the value of Network idle timeout.

    • Enable pre channel check: Select this option to evaluate the connection and channel policies before establishing the server-side connection. That way if the connection is not permitted at all, SPS does not establish the server-side connection.

    • To configure TLS security settings on both the Client side and the Server side, proceed to TLS security settings.

      Figure 236: <Protocol> Control > Settings > TLS security settings - configuring TLS security settings

      • Cipher strength specifies the cipher string OpenSSL will use. The following options are possible:

        • Recommended: this setting only uses ciphers with adequate security level.

        • Custom: this setting allows you to specify the list of ciphers you want to permit SPS to use in the connection. This setting is only recommended to ensure compatibility with older systems. For more details on customizing this list, check the 'openssl-ciphers' manual page on your SPS appliance.

          For example: ALL:!aNULL:@STRENGTH

      • Minimum TLS version specifies the minimal TLS version SPS will offer during negotiation. The following options are possible:

        • TLS 1.2: this setting will only offer TLS version 1.2 during negotiation. This is the recommended setting.

        • TLS 1.1: this setting will offer TLS version 1.1 and later versions during negotiation.

        • TLS 1.0: this setting will offer TLS version 1.0 and later versions during negotiation.

      NOTE: Note that SPS only permits TLS-encrypted connections. SSLv3 is not supported.

  4. Click .

  5. To display a banner message to the clients before authentication, enter the message into the Banner field. For example, this banner can inform the users that the connection is audited.

  6. Select this settings profile in the TELNET settings field of your connections.

Inband destination selection in Telnet connections

When using inband destination selection in Telnet connections, the user can provide the server address and the username using the following methods:

  • By setting the TELNET ENVIRON option using the SERVER environment variable in the server:port format.

  • By setting the TELNET ENVIRON option using the USER environment variable in the user@server:port format.

  • If neither the SERVER nor the USER environment variable, One Identity Safeguard for Privileged Sessions (SPS) displays a terminal prompt where the user can enter the username and the server address.

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