Framework/Configurations/SVT/Services/CDN.json
|
{
"FeatureName": "CDN", "Reference": "aka.ms/azsktcp/cdn", "IsManintenanceMode": false, "Controls": [ { "ControlID": "Azure_CDN_AuthZ_Grant_Min_RBAC_Access", "Description": "All users/identities must be granted minimum required permissions using Role Based Access Control (RBAC)", "Id": "CDN110", "ControlSeverity": "Medium", "Automated": "Yes", "MethodName": "CheckRBACAccess", "Rationale": "Granting minimum access by leveraging RBAC feature ensures that users are granted just enough permissions to perform their tasks. This minimizes exposure of the resources in case of user/service account compromise.", "Recommendation": "Remove any excessive privileges granted on the CDN. Run command Remove-AzureRmRoleAssignment -SignInName '{signInName}' -Scope '{scope}' -RoleDefinitionName '{role definition name}'. Run 'Get-Help Remove-AzureRmRoleAssignment -full' for more help.", "Tags": [ "SDL", "TCP", "Automated", "AuthZ", "RBAC" ], "Enabled": true }, { "ControlID": "Azure_CDN_AuthN_Config_Token_AuthN", "Description": "CDN profile endpoints must use token authentication", "Id": "CDN120", "ControlSeverity": "Medium", "Automated": "No", "MethodName": "", "Rationale": "Using token authentication prevents Azure CDN from serving assets to unauthorized clients. This keeps other sites from 'hotlinking' content and using your assets without permission", "Recommendation": "To enable token authentication (currently available on Premium Verizon tier), go to Azure Portal --> your CDN Profile --> Manage --> HTTP LARGE --> Token Auth. Please refer https://docs.microsoft.com/en-us/azure/cdn/cdn-token-auth for more details on token authentication.", "Tags": [ "SDL", "Best Practice", "Manual", "AuthN" ], "Enabled": true }, { "ControlID": "Azure_CDN_DP_TokenKey_Protection", "Description": "Token encryption key must be protected in a key vault (when a website generates tokens via code).", "Id": "CDN130", "ControlSeverity": "High", "Automated": "No", "MethodName": "", "Rationale": "Keeping secrets such as DB connection strings, passwords, keys, etc. in clear text can lead to easy compromise at various avenues during an application's lifecycle. Storing them in a key vault ensures that they are protected at rest.", "Recommendation": "Refer https://azure.microsoft.com/en-in/documentation/articles/key-vault-get-started/ (Key Vault) and https://docs.microsoft.com/en-us/azure/cdn/cdn-token-auth (token-based authentication in CDN).", "Tags": [ "SDL", "TCP", "Manual", "DP" ], "Enabled": true }, { "ControlID": "Azure_CDN_DP_Enable_Https", "Description": "CDN endpoints must use HTTPS protocol while providing data to the client browser/machine or while fetching data from the origin server", "Id": "CDN140", "ControlSeverity": "High", "Automated": "Yes", "MethodName": "CheckCDNHttpsProtocol", "Rationale": "Use of HTTPS ensures server/service authentication and protects data in transit from network layer man-in-the-middle, eavesdropping, session-hijacking attacks.", "Recommendation": "To enable HTTPS protocol: Go to Azure Portal --> your CDN Profile --> your CDN Endpoint --> Origin --> Select HTTPS --> Save. Else implement through PowerShell as follows: $ce= Get-AzureRmCdnEndpoint -EndpointName $_.Name –ProfileName <CDNprofile> -ResourceGroupName <RGName>; $ce.IsHttpAllowed =$false; $ce.IsHttpsAllowed =$true; Set-AzureRmCdnEndpoint -CdnEndpoint $ce", "Tags": [ "SDL", "TCP", "Automated", "DP" ], "Enabled": true, "FixControl": { "FixMethodName": "EnableHttpsProtocol", "FixControlImpact": "Medium" } }, { "ControlID": "Azure_CDN_DP_Use_Only_For_Public_Data", "Description": "Do not put any sensitive data in a CDN. CDN is suitable only for resources where anonymous access is not a concern", "Id": "CDN150", "ControlSeverity": "High", "Automated": "No", "MethodName": "", "Rationale": "Azure CDN does not provide any access control feature to restrict/secure access to content. Thus no private data should be stored in CDN.", "Recommendation": "Refer: https://docs.microsoft.com/en-gb/azure/architecture/best-practices/cdn.", "Tags": [ "SDL", "Best Practice", "Manual", "DP" ], "Enabled": true }, { "ControlID": "Azure_CDN_Audit_Configure_Real_Time_Alerts", "Description": "Configure real time alerts on status code 403 to be observant of any unauthorized request for CDN endpoint", "Id": "CDN170", "ControlSeverity": "Medium", "Automated": "No", "MethodName": "", "Rationale": "Setting up real-time alerts provides real-time notifications about the performance of the endpoints and any unauthorized request in your CDN profile.", "Recommendation": "To set up alerts: Go to Azure Portal --> your CDN Profile --> Manage --> Analytics --> Real-Time Stats --> Real-Time Alerts.", "Tags": [ "SDL", "TCP", "Manual", "Audit" ], "Enabled": true } ] } |