Kubernetes admission controller activity

Cortex XDR Analytics Alert Reference by data source
Product
Cortex XDR
Last date published
2024-12-03
Category
Analytics Alert Reference
Order
data source

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

5 Days

Required Data

  • Requires one of the following data sources:
    • AWS Audit Log
      OR
    • Azure Audit Log
      OR
    • Gcp Audit Log

Detection Modules

Cloud

Detector Tags

Kubernetes - API

ATT&CK Tactic

ATT&CK Technique

Severity

Informational

Description

A Kubernetes admission controller has been created or modified.

Attacker's Goals

  • Intercept the requests to the Kubernetes API sever, records secrets, and other sensitive information.
  • Modify requests to the Kubernetes API sever.

Investigative actions

  • Verify whether the identity should use Kubernetes admission controllers.
  • Examine the role of the Kubernetes admission controller and its intended function.
  • Investigate other operations that were performed by the identity within the cluster.

Variations

Kubernetes validating admission controller was used in the organization for the first time

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Low

Description

A validating Kubernetes admission controller has been created or modified.

Attacker's Goals

  • Intercept the requests to the Kubernetes API sever, records secrets, and other sensitive information.
  • Modify requests to the Kubernetes API sever.

Investigative actions

  • Verify whether the identity should use Kubernetes admission controllers.
  • Examine the role of the Kubernetes admission controller and its intended function.
  • Investigate other operations that were performed by the identity within the cluster.


Kubernetes mutating admission controller was used in the organization for the first time

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Medium

Description

A mutating Kubernetes admission controller has been created or modified.

Attacker's Goals

  • Intercept the requests to the Kubernetes API sever, records secrets, and other sensitive information.
  • Modify requests to the Kubernetes API sever.

Investigative actions

  • Verify whether the identity should use Kubernetes admission controllers.
  • Examine the role of the Kubernetes admission controller and its intended function.
  • Investigate other operations that were performed by the identity within the cluster.


Kubernetes validating admission controller was used in the cluster for the first time

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Low

Description

A validating Kubernetes admission controller has been created or modified.

Attacker's Goals

  • Intercept the requests to the Kubernetes API sever, records secrets, and other sensitive information.
  • Modify requests to the Kubernetes API sever.

Investigative actions

  • Verify whether the identity should use Kubernetes admission controllers.
  • Examine the role of the Kubernetes admission controller and its intended function.
  • Investigate other operations that were performed by the identity within the cluster.


Kubernetes mutating admission controller was used in the cluster for the first time

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Medium

Description

A mutating Kubernetes admission controller has been created or modified.

Attacker's Goals

  • Intercept the requests to the Kubernetes API sever, records secrets, and other sensitive information.
  • Modify requests to the Kubernetes API sever.

Investigative actions

  • Verify whether the identity should use Kubernetes admission controllers.
  • Examine the role of the Kubernetes admission controller and its intended function.
  • Investigate other operations that were performed by the identity within the cluster.