sigmamediumHunting

GCP Break-glass Container Workload Deployed

Detects the deployment of workloads that are deployed by using the break-glass flag to override Binary Authorization controls.

MITRE ATT&CK

T1548

privilege-escalationdefense-evasion

Detection Query

selection:
  data.protoPayload.resource.type: k8s_cluster
  data.protoPayload.logName:
    - cloudaudit.googleapis.com/activity
    - cloudaudit.googleapis.com%2Factivity
  data.protoPayload.methodName: io.k8s.core.v1.pods.create
keywords:
  - image-policy.k8s.io/break-glass
condition: selection and keywords

Author

Bryan Lim

Created

2024-01-12

Data Sources

gcpgcp.audit

Platforms

gcp

References

https://cloud.google.com/binary-authorization

Tags

attack.privilege-escalationattack.defense-evasionattack.t1548

Raw Content

title: GCP Break-glass Container Workload Deployed
id: 76737c19-66ee-4c07-b65a-a03301d1573d
status: test
description: |
    Detects the deployment of workloads that are deployed by using the break-glass flag to override Binary Authorization controls.
references:
    - https://cloud.google.com/binary-authorization
author: Bryan Lim
date: 2024-01-12
tags:
    - attack.privilege-escalation
    - attack.defense-evasion
    - attack.t1548
logsource:
    product: gcp
    service: gcp.audit
detection:
    selection:
        data.protoPayload.resource.type: 'k8s_cluster'
        data.protoPayload.logName:
            - 'cloudaudit.googleapis.com/activity'
            - 'cloudaudit.googleapis.com%2Factivity'
        data.protoPayload.methodName: 'io.k8s.core.v1.pods.create'
    keywords:
        - 'image-policy.k8s.io/break-glass'
    condition: selection and keywords
falsepositives:
    - Unknown
level: medium