Control: 6.4 Ensure that HTTP(S) access from the Internet is evaluated and restricted
Description
Network security groups should be periodically evaluated for port misconfigurations. Where certain ports and protocols may be exposed to the Internet, they should be evaluated for necessity and restricted wherever they are not explicitly required and narrowly configured.
The potential security problem with using HTTP(S) over the Internet is that attackers can use various brute force techniques to gain access to Azure resources. Once the attackers gain access, they can use the resource as a launch point for compromising other resources within the Azure tenant.
Remediation
Where HTTP(S) is not explicitly required and narrowly configured for resources attached to the Network Security Group, Internet-level access to your Azure resources should be restricted or eliminated.
For internal access to relevant resources, configure an encrypted network tunnel such as:
Usage
Run the control in your terminal:
powerpipe control run azure_compliance.control.cis_v150_6_4Snapshot and share results via Turbot Pipes:
powerpipe loginpowerpipe control run azure_compliance.control.cis_v150_6_4 --shareSQL
This control uses a named query:
network_security_group_https_access_restricted