Network misconfigurations

Elastic Load Balancer (ELB) allows ingress access to SSH port 22

Platform(s)
Compliance Frameworks

Description

SSH (Secure Shell) port - 22 is used to get CLI access to Linux instances. Allowing inbound traffic from all external IP addresses to SSH port is vulnerable to banner grabbing and brute force attack. It is a best practice to restrict access from specific IP addresses to port 22.
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