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Release notes for the Splunk Add-on for Cisco ESA

Version 1.8.0 of the Splunk Add-on for Cisco ESA was released .

Compatibility

Version 1.8.0 of the Splunk Add-on for Cisco ESA is compatible with the following platforms, CIM versions, and products:

Component Description
Splunk platform versions 9.1.x, 9.2.x, 9.3.x, 9.4.x, 10.0.x, 10.1.x, 10.2.x, 10.3.x, 10.4.x
CIM v5.3.2
Platforms Platform independent
Vendor Products Cisco ESA AsyncOS v15.5.2

New features

Version 1.8.0 of the Splunk Add-on for Cisco ESA has the following new features:

  • Added support for Cisco ESA Anti-Virus lifecycle logs under the cisco:esa:antivirus source type.
  • Added Malware Operations mapping for Cisco ESA Anti-Virus IDE signature serial events.
  • Added Network Sessions Session_Start mapping for HTTP session-established events in cisco:esa:system_logs.
  • Updated Cisco ESA GUI HTTP session-established events to map to Authentication instead of Network Sessions.
  • Updated the Cisco ESA dashboard Change panel to filter Cisco ESA sourcetypes only.

Upgrade notes

Review the following search-time behavior changes before upgrading to version 1.8.0:

  • GUI HTTP session-established events in cisco:esa:http now map to Authentication through the cisco_esa_auth_logs event type with action=success. Previous releases mapped these events to Network Sessions Session_Start with action=started. The cisco_esa_http_session event type was removed, so saved searches that reference this event type must be updated to use cisco_esa_auth_logs.
  • HTTP session-established events in cisco:esa:system_logs now map to Network Sessions Session_Start through the cisco_esa_network_sessions_start event type. For these events, src is populated from the initiating client IP extracted from SourceIP.
  • Cisco ESA Network Traffic events now use application-specific app values such as http, https, and SMTP instead of the generic Cisco Email Security Appliance value when the protocol is known.
  • System-generated Change events no longer synthesize user_type=User when there is no user context in the event.

Data model changes

sourcetype DM Identification Criteria Previous CIM model New CIM model
cisco:esa:http HTTP GUI session-established events Network Sessions:Session_Start Authentication
cisco:esa:system_logs HTTP session-established events None Network Sessions:Session_Start
cisco:esa:antivirus Anti-Virus IDE signature serial events None Malware:Malware_Operations

Field changes

Source type Fields added Fields removed
cisco:esa:antivirus log_type, av_engine, update_phase, product_version, signature_version, vendor_product, app, dest, dvc
cisco:esa:system_logs src and src_ip for HTTP session-established events
cisco:esa:system_logs synthetic user_type=User for system-generated Change events
cisco:esa:http, cisco:esa:textmail application-specific app values for Network Traffic events

Fixed issues

Version 1.8.0 of the Splunk Add-on for Cisco ESA fixes the following issues.

Known issues

Version 1.8.0 of the Splunk Add-on for Cisco ESA contains the following known issues.

If no issues appear here, no issues have yet been reported.

Third-party software attributions

Third-party software attributions for the Splunk Add-on for Cisco ESA