Cis Azure Compute 2.6
DevOps & Securitycis-azure-compute-2.6Cis Azure Compute 2.6 is an Agent Skill for devops & security published in the CyberStrikeus/CyberStrike repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.
Ensure App Service Environment is deployed with an internal load balancer
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Ensure App Service Environment is deployed with an internal load balancer
Description
App Service Environment apps should not be reachable over public internet. To ensure apps deployed in an App Service Environment are not accessible over public internet, one should deploy App Service Environment with an IP address in virtual network. To set the IP address to a virtual network IP, the App Service Environment must be deployed with an internal load balancer.
Rationale
Disabling public network access improves security by ensuring that a service is not exposed on the public internet.
Impact
Disabling public network access restricts access to the service. This enhances security but may require the configuration of private endpoints for any services or users needing access within trusted networks.
Audit Procedure
Using Azure Portal
- Go to
App Service Environments. - For each App Service Environment, ensure that
Virtual IP Typeis set toInternal.
Using Azure CLI
Run the following command to list App Service Environments:
az appservice ase list
For each App Service Environment, ensure that internalLoadBalancingMode is not set to None.
Expected Result
The internalLoadBalancingMode should not be set to None. The Virtual IP Type should be Internal.
Remediation
It is not possible to change the virtual IP configuration of a deployed App Service Environment.
When deploying an App Service Environment, next to Virtual IP, select Internal: The endpoint is an internal load balancer (ILB ASE).
Default Value
When deploying an App Service Environment, Internal: The endpoint is an internal load balancer (ILB ASE) is the default selected option for Virtual IP.
References
Profile
Level 2 | Automated