IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Potential Abuse of Repeated MFA Push Notifications
editPotential Abuse of Repeated MFA Push Notifications
editDetects when an attacker abuses the Multi-Factor authentication mechanism by repeatedly issuing login requests until the user eventually accepts the Okta push notification. An adversary may attempt to bypass the Okta MFA policies configured for an organization to obtain unauthorized access.
Rule type: eql
Rule indices:
- filebeat-*
- logs-okta*
Severity: high
Risk score: 73
Runs every: 5m
Searches indices from: None (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
Rule authors:
- Elastic
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
editsequence by user.email with maxspan=10m [any where event.module == "okta" and event.action == "user.mfa.okta_verify.deny_push"] [any where event.module == "okta" and event.action == "user.mfa.okta_verify.deny_push"] [any where event.module == "okta" and event.action == "user.authentication.sso"]
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/