Ensure no workspace security groups allow ingress from 0.0.0.0/0 to port 3389

中等級 1人工審核ibmcloud

說明

It is recommended that workspace security groups do not allow unrestricted ingress access from 0.0.0.0/0 to port 3389, which is the Remote Desktop Protocol (RDP) port used for remote server administration. Restricting access to the RDP port reduces the attack surface and lowers risk to PowerVS resources by preventing access to a critical administrative port.

檢查方式

稽核方法: 人工審核

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Perform the following tasks to determine if the account is configured as prescribed: 1. Login to the IBM Cloud Portal at https://cloud.ibm.com and select Power Virtual Server user interface. 2. In the navigation panel, click Workspaces, then select the workspace that contains the Network Security Groups to review and open the Workspace details page. 3. From the workspace details page, click view virtual servers. 4. In the left navigation panel, expand Networking and then select Network security groups. For each NSG perform the following: a. Select the access control list name b. Ensure no Inbound Rule exists that has a port range that includes port 22 and has a Source of 0.0.0.0/0. Note that a port range value of ALL or a port range that includes port 3389, e.g. 3300-3400, are inclusive of port 3389.

修補方式

修補方法: 操作指南或基礎設施修補檔

1. Login to the IBM Cloud Portal at https://cloud.ibm.com and select Power Virtual Server user interface. 2. In the navigation panel, click Workspaces, then select the workspace that contains the Network Security Groups to review and open the Workspace details page. 3. From the workspace details page, click view virtual servers. 4. For each network security group, perform the following: a. Select the network security group name. b. Identify the Inbound rule to be removed, then select Delete.

屬性

作業系統: 不限
標籤: cloudibmcloud
參考資料: CIS IBM Cloud Foundations Benchmark v2.0.0 - 9.2 Ensure no workspace security groups allow ingress from 0.0.0.0/0 to port 3389