Splunk Information Disclosure on Account Login

name: Splunk Information Disclosure on Account Login
id: 2bae5d19-6d1b-4db0-82ab-0af5ac5f836c
version: 8
creation_date: '2024-07-01'
modification_date: '2026-06-24'
author: Rod Soto
status: deprecated
type: Hunting
description: This is a composed hunting search that looks for possible user enumeration attempts when SAML is enabled on a Splunk instance by capturing different responses from server.
data_source:
    - Splunk
search: '`splunkd` component=UiAuth status=failure action=login TcpChannelThread | stats count min(_time) as firstTime max(_time) as lastTime by user status action clientip | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `splunk_information_disclosure_on_account_login_filter`'
how_to_implement: Requires access to internal indexes _internal.
known_false_positives: This is a hunting search and requires operator to search for large number of login failures from several users indicating possible user enumeration attempts. May capture genuine login failures.
references:
    - https://advisory.splunk.com/advisories/SVD-2024-0716
analytic_story:
    - Splunk Vulnerabilities
asset_type: Splunk Server
cve:
    - CVE-2024-36996
mitre_attack_id:
    - T1087
product:
    - Splunk Enterprise
    - Splunk Cloud
    - Splunk Enterprise Security
category: application
security_domain: endpoint
tests:
    - name: True Positive Test
      attack_data:
        - data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1087/splunk/SVD-2024-0716_splunkd_splunkd.log
          source: /opt/splunk/var/log/splunk/splunkd.log
          sourcetype: splunkd
          index: _internal
      test_type: unit
deprecation_info:
    reason: Detection has been deprecated. The logic is not accurately detecting the malicious activity.
    removed_in_version: 6.4.0
    replacement_content: []