Florian Roth
31 lines
1.7 KiB
YAML
31 lines
1.7 KiB
YAML
title: Azure Kubernetes Network Policy Change
|
|
id: 08d6ac24-c927-4469-b3b7-2e422d6e3c43
|
|
description: Identifies when a Azure Kubernetes network policy is modified or deleted.
|
|
author: Austin Songer @austinsonger
|
|
status: experimental
|
|
date: 2021/08/07
|
|
references:
|
|
- https://docs.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations#microsoftkubernetes
|
|
- https://www.microsoft.com/security/blog/2021/03/23/secure-containerized-environments-with-updated-threat-matrix-for-kubernetes/
|
|
- https://www.microsoft.com/security/blog/2020/04/02/attack-matrix-kubernetes/
|
|
- https://medium.com/mitre-engenuity/att-ck-for-containers-now-available-4c2359654bf1
|
|
- https://attack.mitre.org/matrices/enterprise/cloud/
|
|
logsource:
|
|
product: azure
|
|
service: activitylogs
|
|
detection:
|
|
selection:
|
|
properties.message:
|
|
- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/NETWORKING.K8S.IO/NETWORKPOLICIES/WRITE
|
|
- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/NETWORKING.K8S.IO/NETWORKPOLICIES/DELETE
|
|
- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/EXTENSIONS/NETWORKPOLICIES/WRITE
|
|
- MICROSOFT.KUBERNETES/CONNECTEDCLUSTERS/EXTENSIONS/NETWORKPOLICIES/DELETE
|
|
condition: selection
|
|
level: medium
|
|
tags:
|
|
- attack.impact
|
|
- attack.credential_access
|
|
falsepositives:
|
|
- Network Policy being modified and deleted may be performed by a system administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment.
|
|
- Network Policy being modified and deleted from unfamiliar users should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
|