Splunk Enterprise must be configured with a successful/unsuccessful logon attempts report.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-221942SRG-APP-000503-AU-000280SPLK-CL-000280SV-221942r961824_rule2024-08-273
Description
The SIEM or Central Log Server is the mitigation method for most of the other STIGs applied to an organization. Robust alerting and reporting is a key feature in any incident response plan. The ability to report on logon attempts is the first step is creating a chain of events for a forensic analysis and incident response.
ℹ️ Check
If the Splunk instance is used for Tier 2 CSSP (formerly CND-SP) or JRSS analysis, this check is N/A. Interview the System Administrator (SA) to demonstrate that a logon attempts report exists. If a report does not exist, this is a finding.
✔️ Fix
If the Splunk instance is used for Tier 2 CSSP (formerly CND-SP) or JRSS analysis, this fix is N/A. Configure Splunk Enterprise using the reporting and notification tools to create a report that audits the logon attempts. Make this report available to the ISSM and other required individuals.