DB Security Group Open To Large Scope

Query id: ea0ed1c7-9aef-4464-b7c7-94c762da3640
Query name: DB Security Group Open To Large Scope
Platform: Ansible
Severity: High
Category: Networking and Firewall
CWE: 200
URL: Github

Description¶

The IP address in a DB Security Group must not have more than 256 hosts.
Documentation

Code samples¶

Code samples with security vulnerabilities¶

Positive test num. 1 - yaml file

- name: create minimal aurora instance in default VPC and default subnet group
  community.aws.rds_instance:
    engine: aurora
    db_instance_identifier: ansible-test-aurora-db-instance
    instance_type: db.t2.small
    password: "{{ password }}"
    username: "{{ username }}"
    cluster_id: ansible-test-cluster
    db_security_groups: ["example"]
- name: example ec2 group
  ec2_group:
    name: example
    description: an example EC2 group
    vpc_id: 12345
    region: eu-west-1a
    aws_secret_key: SECRET
    aws_access_key: ACCESS
    rules:
      - proto: tcp
        from_port: 80
        to_port: 80
        cidr_ip: 0.0.0.0/0
      - proto: tcp
        from_port: 22
        to_port: 22
        cidr_ip: 10.0.0.0/8
      - proto: tcp
        from_port: 443
        to_port: 443
        group_id: amazon-elb/sg-87654321/amazon-elb-sg
      - proto: tcp
        from_port: 3306
        to_port: 3306
        group_id: 123412341234/sg-87654321/exact-name-of-sg
      - proto: udp
        from_port: 10050
        to_port: 10050
        cidr_ip: 10.0.0.0/8
      - proto: udp
        from_port: 10051
        to_port: 10051
        group_id: sg-12345678
      - proto: icmp
        from_port: 8 # icmp type, -1 = any type
        to_port: -1 # icmp subtype, -1 = any subtype
        cidr_ip: 192.168.1.0/24
      - proto: all
        # the containing group name may be specified here
        group_name: example

Code samples without security vulnerabilities¶

Negative test num. 1 - yaml file

- name: example ec2 group2
  ec2_group:
    name: example1
    description: an example EC2 group
    vpc_id: 12345
    region: eu-west-1a
    aws_secret_key: SECRET
    aws_access_key: ACCESS
    rules:
    - proto: tcp
      from_port: 80
      to_port: 80
      cidr_ip: 10.1.1.1/32