Denied API call by a Kubernetes service account

Synopsis

Field	Value
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 OR Kubernetes Audit Logs
Detection Modules	Cloud
Detector Tags	Kubernetes - API
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Informational

Description

A Kubernetes service account API call was denied.

Attacker's Goals

Gain access to the Kubernetes cluster.

Investigative actions

• Check whether the service account should be making this API call.
• Check service account's activity, including additional executed API calls.

Variations

Denied API call by Kubernetes service account for the first time in the cluster

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Low

Description

A Kubernetes service account API call was denied.

Attacker's Goals

Gain access to the Kubernetes cluster.

Investigative actions

• Check whether the service account should be making this API call.
• Check service account's activity, including additional executed API calls.

Suspicious denied API call by a Kubernetes service account

Synopsis

Field	Value
ATT&CK Tactic	Execution (TA0002)
ATT&CK Technique	User Execution (T1204)
Severity	Informational

Description

A Kubernetes service account API call was denied.

Attacker's Goals

Gain access to the Kubernetes cluster.

Investigative actions

• Check whether the service account should be making this API call.
• Check service account's activity, including additional executed API calls.