Missing description for security group rule.
Default Severity: low
Explanation
Security group rules should include a description for auditing purposes.
Simplifies auditing, debugging, and managing security groups.
Possible Impact
Descriptions provide context for the firewall rule reasons
Suggested Resolution
Add descriptions for all security groups rules
Insecure Example
The following example will fail the aws-vpc-add-description-to-security-group-rule check.
resource "aws_security_group" "bad_example" {
name = "http"
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = [aws_vpc.main.cidr_block]
}
}
Secure Example
The following example will pass the aws-vpc-add-description-to-security-group-rule check.
resource "aws_security_group" "good_example" {
name = "http"
description = "Allow inbound HTTP traffic"
ingress {
description = "HTTP from VPC"
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = [aws_vpc.main.cidr_block]
}
}