Attempts to Brute Force an Okta User Accountedit
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: 5 minutes
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: 102 (version history)
Added (Elastic Stack release): 7.10.0
Last modified (Elastic Stack release): 8.6.0
Rule authors: Elastic, @BenB196, Austin Songer
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
event.dataset:okta.system and event.action:user.account.lock
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
-
Technique:
- Name: Brute Force
- ID: T1110
- Reference URL: https://attack.mitre.org/techniques/T1110/
Rule version historyedit
- Version 102 (8.6.0 release)
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- Formatting only
- Version 100 (8.5.0 release)
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- Formatting only
- Version 7 (8.4.0 release)
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- Formatting only
- Version 5 (7.14.0 release)
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-
Updated query, changed from:
event.dataset:okta.system and event.action:user.account.lock
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- Version 4 (7.13.0 release)
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- Formatting only
- Version 3 (7.12.0 release)
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- Formatting only
- Version 2 (7.11.0 release)
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- Formatting only