THIS IS A EXPERIMENTAL DETECTION
This detection has been marked experimental by the Splunk Threat Research team. This means we have not been able to test, simulate, or build datasets for this detection. Use at your own risk. This analytic is NOT supported.
The following anomaly identifies failed Okta SSO events utilizing the legacy Okta event "unauth app access attempt".
- Type: Anomaly
Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
- Last Updated: 2022-09-21
- Author: Michael Haag, Rico Valdez, Splunk
- ID: 371a6545-2618-4032-ad84-93386b8698c5
Kill Chain Phase
- CIS 16
1 2 3 4 5 `okta` eventType=app.generic.unauth_app_access_attempt | stats min(_time) as firstTime max(_time) as lastTime values(app) as Apps count by src_user, result ,displayMessage, src_ip | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `okta_failed_sso_attempts_filter`
The SPL above uses the following Macros:
okta_failed_sso_attempts_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
List of fields required to use this analytic.
How To Implement
This search is specific to Okta and requires Okta logs are being ingested in your Splunk deployment.
Known False Positives
There may be a faulty config preventing legitmate users from accessing apps they should have access to.
Associated Analytic Story
|16.0||40||40||$src_user$ failed SSO authentication to the app.|
The Risk Score is calculated by the following formula: Risk Score = (Impact * Confidence/100). Initial Confidence and Impact is set by the analytic author.
source | version: 3