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One Identity Safeguard for Privileged Sessions 6.0.14 LTS - Administration Guide

Preface Introduction The concepts of One Identity Safeguard for Privileged Sessions (SPS) Cloud deployment considerations 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 Forwarding data to third-party systems Joining to One Identity Starling
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 RDP-specific settings SSH-specific settings Telnet-specific settings VMware Horizon View connections VNC-specific settings Indexing audit trails Using the Search interface Searching session data on a central node in a cluster 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 Appendix: Deprecated features Glossary

Universal SIEM Forwarder

The universal SIEM forwarder can automatically send data about the audited sessions to Splunk, ArcSight, or other third-party systems. The messages are standard syslog messages in RFC3164 format (also called legacy-syslog or BSD-syslog format). The body of the syslog message (the MESSAGE part) can be formatted as JavaScript Object Notation (JSON), Common Event Format (CEF), or JSON-CIM format. For information about the details of the messages that the universal SIEM forwarder sends to the external SIEM network elements, see Message format forwarded to SIEMs in the Adminsitration Guide.

One of the main advantages of the universal SIEM forwarder is that it has a lower impact on network and performance.

Each message contains the minimal information relevant to the event. Use the built-in correlation feature of the SIEM to combine events by session ID and view all information in one place.

Prerequisites and restrictions
  • SPS version 5 F9 or later

  • Splunk version 6.5 or later

  • The CEF format is supported on all currently supported versions of ArcSight ESM, IBM QRadar and Microsoft Azure Sentinel.

  • SPS does not send historical data, only data from the sessions started after you complete this procedure.

To use the universal SIEM forwarder

  1. Log in to SPS and navigate to Basic Settings > Management > Universal SIEM forwarder.

    Figure 66: Basic Settings > Management > Universal SIEM forwarder — Sending session data to SIEM

  2. Enter the IPv4 address or hostname of your third-party system, into the Address field.

  3. Enter the port number where your third-party system is accepting connections into the Port field. For example, if you use Splunk, use port 1999.

    • If your third-party system accepts unencrypted connections, select TLS > Disabled.

      Since the data forwarded contains sensitive information, One Identity recommends to use TLS encryption between SPS and your SIEM.

    • To use TLS encryption between SPS and your third-party system, select TLS > Without certificate validation.

    • To use TLS encryption between SPS and your third-party system and also verify the identity of your third-party system server, select TLS > With certificate validation, then select the CA list you want to use to validate the certificate of the third-party system in the Trusted CAs field. For details on creating trusted CA lists, see Verifying certificates with Certificate Authorities.

  4. Select the format of the message as follows:
    • JSON-CIM: if using Splunk.

    • CEF: if using CEF-compatible SIEMs, for example, Microsoft Sentinel.

    • JSON: for general use.

  5. (Optional) You can specify a prefix to make the data more readable. Enter the prefix you want to use into the Prefix field.

    The prefix is added to each JSON key. For example, if you use sps_ as a prefix, in the forwarded JSON message the {"protocol": "ssh"} key changes to {"sps_protocol": "ssh"}, which allows you to identify the forwarded data more easily.

    Other formats ignore the Prefix option.

  6. Click Commit. From now on, SPS forwards session data to your third-party system.

Message types forwarded to SIEMs

There are three major categories of messages that One Identity Safeguard for Privileged Sessions (SPS): forwards to the SIEM: content, meta, and score.

  • Content messages represents events when SPS detects interesting textual content in the session, such as a command execution or new window title.

  • Meta messages represent events that change the session state and/or carry new information about a session.

  • Score messages represent scoring events when SPS has calculated an initial score for the session, or updated the score for the session.

The following tables provide a summary of events for the different message types.

Content messages
Table 3: Summary of events for content messages
Event Id Event Name Description
127084214 CommandChannelEvent Emitted when a command is detected in the session text.
911383355 WindowTitleChannelEvent Emitted when a window title is detected in a graphical session.
1127618380 FileTransfer Emitted when SCP file transfer is detected in the SSH protocol.
Meta messages
Table 4: Summary of events for meta messages
Event Id Event Name Description
1843867026 GatewayAuthenticationFailure Emitted if gateway authentication is configured and the user failed to authenticate through the gateway.
1865245228 ServerAuthenticationSuccess Comes after the server authentication successfully happened.
1262825953 ServerAuthenticationFailure Emitted if the server authentication failed.
107115592 ServerConnect Comes after the server authentication successfully happened.
998298775 RdpEmbeddedInTsg Emitted when the gateway user is acquired in a Terminal Service Gateway authentication scenario. This message will only contain the gateway_username optional field.
1639978560 ServerNameResolved Emitted when the server_name field was successfully resolved to an ip address. This message will only contain the server_address optional field.
449510124 SessionClosed Emitted when the session ends.
Score messages
Table 5: Summary of events for score messages
Event Id Event Name Description
1991765353 SessionScored The message contains the aggregate score and one scoring algorithm name and score.

Message format forwarded to SIEMs

The messages are standard syslog messages in RFC3164 format (also called legacy-syslog or BSD-syslog format). The body of the syslog message (the MESSAGE part) can be formatted as one of:

  • Common Event Format (CEF), based on the ArcSight CEF specification rev. 16, 22 July 2010

  • JavaScript Object Notation (JSON)

  • JSON-CIM format (available in SPS version 5.11 and later).

CEF

CEF (Common Event Format): the mapping to CEF will be described in terms of mapping from the JSON format to CEF. In CEF all relevant keys are present, but the value may be empty if it is not known.

Header

Here <...> is substituted with the actual values.

CEF:0|OneIdentity|SPS|<SPS_version>|<event_type_id>|<event_name>|<severity>|

Extensions

CEF extensions that are always present:

cs1: string, equal to session_id

cs1Label: string, equal to literal "Session ID"

start: equal to timestamp

For details on the exact messages and the fields they contain, see CEF messages.

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