ID | Technique | Tactic |
---|---|---|
T1078 | Valid Accounts | Defense Evasion |
T1078.001 | Default Accounts | Initial Access |
Detection: Okta Failed SSO Attempts
DEPRECATED DETECTION
This detection has been marked as deprecated by the Splunk Threat Research team. This means that it will no longer be maintained or supported. If you have any questions or concerns, please reach out to us at research@splunk.com.
Description
DEPRECATION NOTE - This search has been deprecated and replaced with this detection Okta Unauthorized Access to Application - DM
. The following anomaly identifies failed Okta SSO events utilizing the legacy Okta event "unauth app access attempt".
Search
1`okta` eventType=app.generic.unauth_app_access_attempt
2| stats min(_time) as firstTime max(_time) as lastTime values(app) as Apps count by src_user, result ,displayMessage, src_ip
3| `security_content_ctime(firstTime)`
4| `security_content_ctime(lastTime)`
5| `okta_failed_sso_attempts_filter`
Data Source
Name | Platform | Sourcetype | Source | Supported App |
---|---|---|---|---|
N/A | N/A | N/A | N/A | N/A |
Macros Used
Name | Value |
---|---|
okta | eventtype=okta_log OR sourcetype = "OktaIM2:log" |
okta_failed_sso_attempts_filter | search * |
okta_failed_sso_attempts_filter
is an empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
Annotations
Default Configuration
This detection is configured by default in Splunk Enterprise Security to run with the following settings:
Setting | Value |
---|---|
Disabled | true |
Cron Schedule | 0 * * * * |
Earliest Time | -70m@m |
Latest Time | -10m@m |
Schedule Window | auto |
Creates Risk Event | True |
Implementation
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
Risk Based Analytics (RBA)
Risk Message | Risk Score | Impact | Confidence |
---|---|---|---|
$src_user$ failed SSO authentication to the app. | 16 | 40 | 40 |
References
Detection Testing
Test Type | Status | Dataset | Source | Sourcetype |
---|---|---|---|---|
Validation | Not Applicable | N/A | N/A | N/A |
Unit | ❌ Failing | N/A | N/A |
N/A |
Integration | ❌ Failing | N/A | N/A |
N/A |
Replay any dataset to Splunk Enterprise by using our replay.py
tool or the UI.
Alternatively you can replay a dataset into a Splunk Attack Range
Source: GitHub | Version: 3