ec2-unrestricted-mysql: Unrestricted MySQL Access on EC2

id: ec2-unrestricted-mysql
info:
  name: Unrestricted MySQL Access on EC2
  author: princechaddha
  severity: critical
  description: |
    Identifies unrestricted inbound access to MySQL database servers on Amazon EC2 instances, specifically targeting TCP port 3306.
  impact: |
    Unrestricted access to MySQL can lead to unauthorized data access, data manipulation, or exploitation of the database server.
  remediation: |
    Restrict inbound access on TCP port 3306 to known, necessary IP addresses or ranges, and avoid using 0.0.0.0/0 or ::/0.
  reference:
    - https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-security-groups.html
  tags: cloud,devops,aws,amazon,ec2,aws-cloud-config

variables:
  region: "us-east-1"

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      aws ec2 describe-security-groups --region $region --filters Name=ip-permission.from-port,Values=3306 Name=ip-permission.to-port,Values=3306 Name=ip-permission.cidr,Values='0.0.0.0/0' --output json --query 'SecurityGroups[*].GroupId'

    extractors:
      - type: json
        name: securitygroup
        internal: true
        json:
          - '.[]'

      - type: dsl
        dsl:
          - 'securitygroup + " security group(s) alows unrestricted mongodb access (0.0.0.0/0 or ::/0) on port 3306"'
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