Severity Framework
Snyk CCSS
Rule category
Network / Public Access
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- Snyk ID SNYK-CC-00471
- credit Snyk Research Team
Description
Because inbound traffic is allowed to a resource from any source instead of a restricted range, potentially everyone can access your resource.
How to fix?
Set ingress.cidr_blocks attribute with a more restrictive CIDR block, for example 192.16.0.0/24.
Example Configuration
resource "aws_security_group" "ingress-single-cidr-80-80" {
name = "ingress-single-cidr-80-80"
vpc_id = aws_vpc.main.id
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["192.16.0.0/24"]
}
}