Prevent usage of the default namespace in Kubernetes clusters to protect against unauthorized access for ConfigMap, Pod, Secret, Service, and ServiceAccount resource types. For more information, see https://aka.ms/kubepolicydoc.
IF (2) Microsoft.ContainerService/managedClusters Microsoft.Kubernetes/connectedClusters
Compliance
The following 5 compliance controls are associated with this Policy definition 'Kubernetes clusters should not use the default namespace' (9f061a12-e40d-4183-a00e-171812443373)
**Security Principle:**
Continuously monitor and alert when there is a deviation from the defined configuration baseline. Enforce the desired configuration according to the baseline configuration by denying the non-compliant configuration or deploy a configuration.
**Azure Guidance:**
Use Microsoft Defender for Cloud to configure Azure Policy to audit and enforce configurations of your Azure resources. Use Azure Monitor to create alerts when there is a configuration deviation detected on the resources.
Use Azure Policy [deny] and [deploy if not exist] rule to enforce secure configuration across Azure resources.
For resource configuration audit and enforcement not supported by Azure Policy, you may need to write your own scripts or use third-party tooling to implement the configuration audit and enforcement.
**Implementation and additional context:**
Understand Azure Policy effects:
https://docs.microsoft.com/azure/governance/policy/concepts/effects
Create and manage policies to enforce compliance:
https://docs.microsoft.com/azure/governance/policy/tutorials/create-and-manage
Get compliance data of Azure resources:
https://docs.microsoft.com/azure/governance/policy/how-to/get-compliance-data
Whilst a SOE can be sufficiently hardened when it is deployed, its security will progressively degrade over time. Agencies can address the degradation of the security of a SOE by ensuring that patches are continually applied, system users are not able to disable or bypass security functionality and antivirus and other security software is appropriately maintained with the latest signatures and updates.
End Point Agents monitor traffic and apply security policies on applications, storage interfaces and data in real-time. Administrators actively block or monitor and log policy breaches. The End Point Agent can also create forensic monitoring to facilitate incident investigation.
End Point Agents can monitor user activity, such as the cut, copy, paste, print, print screen operations and copying data to external drives and other devices. The Agent can then apply policies to limit such activity.
Prevent or detect against unauthorized or malicious software
Shared
The customer is responsible for implementing this recommendation.
Restricts Application and Software Installation — The ability to install applications
and software is restricted to authorized individuals.
• Detects Unauthorized Changes to Software and Configuration Parameters — Processes are in place to detect changes to software and configuration parameters that
may be indicative of unauthorized or malicious software.
• Uses a Defined Change Control Process — A management-defined change control
process is used for the implementation of software.
• Uses Antivirus and Anti-Malware Software — Antivirus and anti-malware software
is implemented and maintained to provide for the interception or detection and remediation of malware.
• Scans Information Assets from Outside the Entity for Malware and Other Unauthorized Software — Procedures are in place to scan information assets that have been
transferred or returned to the entity’s custody for malware and other unauthorized
software and to remove any items detected prior to its implementation on the network.
The customer is responsible for implementing this recommendation.
Manages Changes Throughout the System Life Cycle — A process for managing
system changes throughout the life cycle of the system and its components (infrastructure, data, software, and procedures) is used to support system availability and
processing integrity.
• Authorizes Changes — A process is in place to authorize system changes prior to
development.
• Designs and Develops Changes — A process is in place to design and develop system changes.
• Documents Changes — A process is in place to document system changes to support ongoing maintenance of the system and to support system users in performing
their responsibilities.
• Tracks System Changes — A process is in place to track system changes prior to
implementation.
• Configures Software — A process is in place to select and implement the configuration parameters used to control the functionality of software.
• Tests System Changes — A process is in place to test system changes prior to implementation.
• Approves System Changes — A process is in place to approve system changes prior
to implementation.
• Deploys System Changes — A process is in place to implement system changes.
• Identifies and Evaluates System Changes — Objectives affected by system changes
are identified and the ability of the modified system to meet the objectives is evaluated throughout the system development life cycle.
• Identifies Changes in Infrastructure, Data, Software, and Procedures Required to
Remediate Incidents — Changes in infrastructure, data, software, and procedures
required to remediate incidents to continue to meet objectives are identified and the
change process is initiated upon identification.
• Creates Baseline Configuration of IT Technology — A baseline configuration of IT
and control systems is created and maintained.
• Provides for Changes Necessary in Emergency Situations — A process is in place
for authorizing, designing, testing, approving, and implementing changes necessary
in emergency situations (that is, changes that need to be implemented in an urgent
time frame).
Additional points of focus that apply only in an engagement using the trust services criteria for
confidentiality:
• Protects Confidential Information — The entity protects confidential information
during system design, development, testing, implementation, and change processes
to meet the entity’s objectives related to confidentiality.
Additional points of focus that apply only in an engagement using the trust services criteria for
privacy:
• Protects Personal Information — The entity protects personal information during
system design, development, testing, implementation, and change processes to meet
the entity’s objectives related to privacy.