The Threat Intelligence max_age parameter does not work after upgrading Enterprise Security

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Updated:September 29, 2026
Document ID:SPLK045455

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Applicability

Splunk Enterprise Security

Description

It was discovered that the old IOC entries are not removed from the ip_intel lookup.

Investigation

The error is due to a known bug, SOLNESS-29472,  Threat intelligence max_age parameter doesn't work as expected after ES upgrade from 5.3.1 to 6.4.1 version.

Per lookup_retention.log: 
2021-11-24 12:14:34,026+0000 ERROR pid=18019 tid=MainThread file=base_modinput.py:execute:802 | Execution failed: 'last_seen'
Traceback (most recent call last):
File "/opt/splunk/etc/apps/SA-Utils/lib/SolnCommon/modinput/base_modinput.py", line 793, in execute
log_exception_and_continue=True
File "/opt/splunk/etc/apps/SA-Utils/lib/SolnCommon/modinput/base_modinput.py", line 370, in do_run
self.run(stanza)
File "/opt/splunk/etc/apps/SA-Utils/bin/lookup_retention.py", line 399, in run
lookup.run_retention()
File "/opt/splunk/etc/apps/SA-Utils/bin/lookup_retention.py", line 322, in run_retention
filters = self.get_delete_filters()
File "/opt/splunk/etc/apps/SA-Utils/bin/lookup_retention.py", line 312, in get_delete_filters
query = self.constuct_query(threat_key_intel[0], retention_time, stanza_name, is_taxii)
File "/opt/splunk/etc/apps/SA-Utils/bin/lookup_retention.py", line 231, in constuct_query
last_seen_time = intel['last_seen']
KeyError: 'last_seen'

Resolution

This bug is already fixed in version 6.6.0. 

A  workaround for that Bug is to replace the existing lookup_retention.py file located at $SPLUNK_HOME/etc/apps/SA-Utils/bin/lookup_retention.py
 


https://splunk.atlassian.net/browse/SOLNESS-29472
https://splunk.atlassian.net/browse/SOLNESS-26454

Revision History

Revision Publish Date Comments
1.0
29-Sep-2026
Initial Release

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