Multiple Okta User Auth Events with Same Device Token Hash Behind a Proxy

Last updated 5 days ago on 2024-09-23

Created a year ago on 2023-11-10

About

Detects when Okta user authentication events are reported for multiple users with the same device token hash behind a proxy.

Tags

Use Case: Identity and Access AuditData Source: OktaTactic: Credential Access

Severity

medium

Risk Score

MITRE ATT&CK™

Credential Access (TA0006)(opens in a new tab or window)

↳ Brute Force (T1110)(opens in a new tab or window)

False Positive Examples

An Okta admnistrator may be logged into multiple accounts from the same host for legitimate reasons.Users may share an endpoint related to work or personal use in which separate Okta accounts are used.Shared systems such as Kiosks and conference room computers may be used by multiple users.

License

Elastic License v2(opens in a new tab or window)

Definition

Rule Type: Threshold Rule
Integration Pack: Prebuilt Security Detection Rules
Index Patterns: filebeat-*logs-okta*
Related Integrations: okta(opens in a new tab or window)
Query

event.dataset:okta.system
    and not okta.actor.id:okta* and okta.debug_context.debug_data.dt_hash:*
    and okta.event_type:user.authentication* and okta.security_context.is_proxy:true

Install detection rules in Elastic Security

Detect Multiple Okta User Auth Events with Same Device Token Hash Behind a Proxy in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).