Ensure that SSH access is restricted from the internet

TinggiLevel 2Tinjauan manualalibaba

Deskripsi

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.

Cara pemeriksaan

Metode audit: Tinjauan manual

Rekomendasi ini tidak dapat diperiksa secara otomatis. Pemindaian akan menampilkannya beserta petunjuk ini saat Anda memberikan opsi --include-manual.

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.

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

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

Properti

Sistem operasi: Apa saja
Tag: alibabanetwork
Referensi: CIS Alibaba Cloud Foundation Benchmark v2.0.1 - 3.2 Ensure that SSH access is restricted from the internet