Attempts to Brute Force an Okta User Account

edit

Attempts to Brute Force an Okta User Account

edit

Identifies when an Okta user account is locked out 3 times within a 3 hour window. An adversary may attempt a brute force or password spraying attack to obtain unauthorized access to user accounts. The default Okta authentication policy ensures that a user account is locked out after 10 failed authentication attempts.

Rule type: threshold

Rule indices:

  • filebeat-*
  • logs-okta*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-180m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Elastic
  • Identity
  • Okta
  • Continuous Monitoring
  • SecOps
  • Identity and Access

Version: 8

Rule authors:

  • Elastic
  • @BenB196
  • Austin Songer

Rule license: Elastic License v2

Investigation guide

edit
## Setup

The Okta Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.

Rule query

edit
event.dataset:okta.system and event.action:user.account.lock

Framework: MITRE ATT&CKTM