Attempt to Modify Okta Network Zoneedit

Okta network zones can be configured to limit or restrict access to a network based on IP addresses or geolocations. An adversary may attempt to modify, delete, or deactivate an Okta network zone in order to remove or weaken an organization’s security controls.

Rule type: query

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
  • Network Security

Version: 2 (version history)

Added (Elastic Stack release): 7.9.0

Last modified (Elastic Stack release): 7.10.0

Rule authors: Elastic

Rule license: Elastic License

Potential false positivesedit

Consider adding exceptions to this rule to filter false positives if your organization’s Okta network zones are regularly modified.

Investigation guideedit

The Okta Filebeat module must be enabled to use this rule.

Rule queryedit

event.dataset:okta.system and event.action:(zone.update or
zone.deactivate or zone.delete or network_zone.rule.disabled or
zone.remove_blacklist)

Rule version historyedit

Version 2 (7.10.0 release)
  • Updated query, changed from:

    event.module:okta and event.dataset:okta.system and
    event.action:(zone.update or zone.deactivate or zone.delete or
    network_zone.rule.disabled or zone.remove_blacklist)