Okta Brute Force or Password Spraying Attack
editOkta Brute Force or Password Spraying Attack
editIdentifies a high number of failed Okta user authentication attempts from a single IP address, which could be indicative of a brute force or password spraying attack. An adversary may attempt a brute force or password spraying attack to obtain unauthorized access to user accounts.
Rule type: threshold
Rule indices:
- filebeat-*
- logs-okta*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-6m (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: 5 (version history)
Added (Elastic Stack release): 7.9.0
Last modified (Elastic Stack release): 7.13.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positives
editAutomated processes that attempt to authenticate using expired credentials and unbounded retries may lead to false positives.
Investigation guide
edit## Config The Okta Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
Rule query
editevent.dataset:okta.system and event.category:authentication and event.outcome:failure
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Credential Access
- ID: TA0006
- Reference URL: https://attack.mitre.org/tactics/TA0006/
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Technique:
- Name: Brute Force
- ID: T1110
- Reference URL: https://attack.mitre.org/techniques/T1110/
Rule version history
edit- Version 5 (7.13.0 release)
-
- Formatting only
- Version 4 (7.12.0 release)
-
- Formatting only
- Version 3 (7.11.0 release)
-
- Formatting only
- Version 2 (7.10.0 release)
-
-
Updated query, changed from:
event.module:okta and event.dataset:okta.system and event.category:authentication and event.outcome:failure
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