AWS Application Load Balancer (ALB) not configured with AWS Web Application Firewall v2 (AWS WAFv2)

Rule Details

Cortex AppSec Rule ID	APPSEC2_AWS_28
Category - Subcategory	Public Exposure - Ingress Controls
Provider	AWS
Severity	LOW
Framework	Terraform, Terraform Plan
Mapped CSPM/KSPM Rule	44191c88-265d-40ac-af7f-0e78a57d252d

Impact

AWS WAF is a web application firewall service that helps protect your web applications from common web exploits that could affect your application's availability, integrity, or confidentiality. By attaching AWS WAF to your public-facing ALBs, you can create rules that block or allow traffic based on the characteristics of the traffic, such as the IP address, the HTTP method, or the values of specific headers. This can help to protect your application from common web exploits such as SQL injection attacks, cross-site scripting attacks, and other types of malicious traffic.

How to Fix

[source,go]

resource "aws_lb" "lb_good_1" { internal= false }

resource "aws_wafregional_web_acl_association" "foo" { resource_arn = aws_lb.lb_good_1.arn web_acl_id = aws_wafregional_web_acl.foo.id }