Ensure that SSH access is restricted from the internet

高等級 2人工審核alibaba

說明

Security groups provide stateful filtering of ingress/egress network traffic to Alibaba Cloud resources. It is recommended that no security group allows unrestricted ingress access to port 22 or port 3389. Removing unfettered connectivity to remote console services, such as SSH or RDP, reduces a server's exposure to risk. Reported as a manual review item: the benchmark audit needs console review or organisational judgement.

檢查方式

稽核方法: 人工審核

此項建議無法自動檢查。當您傳入 --include-manual 時，掃描結果會列出此項目並附帶這些說明。

1. Logon to ECS Console 2. In the left-side navigation pane, choose Network & Security > Security Groups. 3. Ensure Port is not equal to 22 or 3389 and Action is not Allow. 4. Ensure IP Ranges is not equal to 0.0.0.0 under Source filters.

修補方式

修補方法: 操作指南或基礎設施修補檔

1. Logon to ECS Console 2. Go to Security Group 3. Find the Security Group you want to modify 4. Modify Source IP range to specific IP 5. Save

屬性

作業系統: 不限
標籤: alibabanetwork
參考資料: CIS Alibaba Cloud Foundation Benchmark v2.0.1 - 3.2 Ensure that SSH access is restricted from the internet