Overview of the rule for VPC security groups restricting ingress TCP and UDP access from 0.0.0.0/0.
Rule | VPC security groups should restrict ingress TCP and UDP access from 0.0.0.0/0 |
Framework | HIPAA |
Severity | ✔ High |
Rule Description:
VPC security groups should restrict ingress TCP and UDP access from 0.0.0.0/0 for HIPAA compliance. This means that inbound TCP and UDP traffic should be limited to specific IP ranges or sources, rather than allowing access from any IP address (0.0.0.0/0). By implementing this rule, the VPC ensures that only authorized traffic can reach the designated resources, improving the overall security posture and achieving compliance with HIPAA regulations.
Troubleshooting Steps:
Verify the current security group settings:
Check for any existing rules allowing TCP and UDP access from 0.0.0.0/0:
Validate if the identified security group is indeed meant to be HIPAA compliant:
Determine the appropriate IP ranges or sources to allow:
Remediation Steps:
Prepare the necessary IP ranges or sources:
Implement the ingress restrictions on the security group:
Add new ingress rules to the security group:
Verify the applied changes:
Example Code:
AWS CLI Command to Modify Ingress Rules for a Security Group:
aws ec2 authorize-security-group-ingress --group-id <security-group-id> --protocol tcp --port <port> --source-ip <source-ip>
Note: Replace
<security-group-id>
, <port>
, and <source-ip>
with the appropriate values according to your configuration.AWS CLI Command to Remove an Existing Ingress Rule:
aws ec2 revoke-security-group-ingress --group-id <security-group-id> --protocol tcp --port <port> --source-ip 0.0.0.0/0
Note: Replace
<security-group-id>
and <port>
with the values specific to your setup.Ensure that you have the necessary permissions to modify the security group and make the required changes accordingly.