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Splunk Enterprise must be configured to protect the log data stored in the indexes from alteration.


Overview

Finding ID Version Rule ID IA Controls Severity
V-251662 SPLK-CL-000090 SV-251662r835283_rule Medium
Description
Without non-repudiation, it is impossible to positively attribute an action to an individual (or process acting on behalf of an individual). The records stored by Splunk Enterprise must be protected against alteration. A hash is one way of performing this function. The server must not allow the removal of identifiers or date/time, or it must severely restrict the ability to do so.
STIG Date
Splunk Enterprise 8.x for Linux Security Technical Implementation Guide 2022-06-07

Details

Check Text ( C-55100r835281_chk )
This check is performed on the machine used as an indexer, which may be a separate machine in a distributed environment.

If the instance being reviewed is not used as an indexer, this check is N/A.

Examine the configuration.

Navigate to the $SPLUNK_HOME/etc/system/local/ directory. View the indexes.conf file.

If the indexes.conf file does not exist, this is a finding.

If the "enableDataIntegrityControl" is missing or is configured to 0 or false for each index, this is a finding.
Fix Text (F-55054r835282_fix)
If the indexes.conf file does not exist, copy the file from $SPLUNK_HOME/etc/system/default to the $SPLUNK_HOME/etc/system/local directory.

Modify the following lines in the indexes.conf file under each index:

enableDataIntegrityControl = 1 or True