The System Administrator (SA) and Information System Security Officer (ISSO) must configure the retention of the log records based on the defined security plan.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-246917	SPLK-CL-000260	SV-246917r960891_rule		Low

Description
If authorized individuals do not have the ability to modify auditing parameters in response to a changing threat environment, the organization may not be able to respond effectively and important forensic information may be lost. The organization must define and document log retention requirements for each device and host and then configure Splunk Enterprise to comply with the required retention period. This requirement enables organizations to extend or limit auditing as necessary to meet organizational requirements. Auditing that is limited to conserve information system resources may be extended to address certain threat situations.

Description

If authorized individuals do not have the ability to modify auditing parameters in response to a changing threat environment, the organization may not be able to respond effectively and important forensic information may be lost. The organization must define and document log retention requirements for each device and host and then configure Splunk Enterprise to comply with the required retention period. This requirement enables organizations to extend or limit auditing as necessary to meet organizational requirements. Auditing that is limited to conserve information system resources may be extended to address certain threat situations.

STIG	Date
Splunk Enterprise 7.x for Windows Security Technical Implementation Guide	2024-06-10

Details

Check Text ( C-50349r768744_chk )
Examine the site documentation for the retention time for log data. Examine the following file in the Splunk installation folder: (Note that these files may exist in one of the following folders or its subfolders: $SPLUNK_HOME/etc/apps/ $SPLUNK_HOME/etc/slave-apps/) $SPLUNK_HOME/etc/system/local/indexes.conf For each index defined in the scope, the frozenTimePeriodInSecs setting must match the site documentation. If the settings do not match, this is a finding.

Check Text ( C-50349r768744_chk )

Examine the site documentation for the retention time for log data.

Examine the following file in the Splunk installation folder:

(Note that these files may exist in one of the following folders or its subfolders:
$SPLUNK_HOME/etc/apps/
$SPLUNK_HOME/etc/slave-apps/)

$SPLUNK_HOME/etc/system/local/indexes.conf

For each index defined in the scope, the frozenTimePeriodInSecs setting must match the site documentation.

If the settings do not match, this is a finding.

Fix Text (F-50303r768745_fix)
Edit the following file in the Splunk installation folder: (Note that these files may exist in one of the following folders or its subfolders: $SPLUNK_HOME/etc/apps/ $SPLUNK_HOME/etc/slave-apps/) $SPLUNK_HOME/etc/system/local/indexes.conf Set frozenTimePeriodInSecs to the defined retention period for each index location.