> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/kubernetes-admission-controller-activity.md).
# Kubernetes admission controller activity
### 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 | Persistence (TA0003), Credential Access (TA0006) |
| ATT\&CK Technique | Valid Accounts (T1078), Unsecured Credentials: Container API (T1552.007) |
| 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**
| Field | Value |
| ----------------- | ------------------------------------------------------------------------ |
| ATT\&CK Tactic | Persistence (TA0003), Credential Access (TA0006) |
| ATT\&CK Technique | Valid Accounts (T1078), Unsecured Credentials: Container API (T1552.007) |
| 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**
| Field | Value |
| ----------------- | ------------------------------------------------------------------------ |
| ATT\&CK Tactic | Persistence (TA0003), Credential Access (TA0006) |
| ATT\&CK Technique | Valid Accounts (T1078), Unsecured Credentials: Container API (T1552.007) |
| 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**
| Field | Value |
| ----------------- | ------------------------------------------------------------------------ |
| ATT\&CK Tactic | Persistence (TA0003), Credential Access (TA0006) |
| ATT\&CK Technique | Valid Accounts (T1078), Unsecured Credentials: Container API (T1552.007) |
| 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**
| Field | Value |
| ----------------- | ------------------------------------------------------------------------ |
| ATT\&CK Tactic | Persistence (TA0003), Credential Access (TA0006) |
| ATT\&CK Technique | Valid Accounts (T1078), Unsecured Credentials: Container API (T1552.007) |
| 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.
---
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