IAM Database Authentication

ID: iam-db-auth

Severity: medium

Author: princechaddha

Tags: cloud,devops,aws,amazon,rds,aws-cloud-config

Description

Ensure IAM Database Authentication is enabled for RDS instances, allowing IAM service to manage database access, thereby removing the need to store user credentials within database configurations.

YAML Source

id: iam-db-auth
info:
  name: IAM Database Authentication
  author: princechaddha
  severity: medium
  description: |
    Ensure IAM Database Authentication is enabled for RDS instances, allowing IAM service to manage database access, thereby removing the need to store user credentials within database configurations.
  impact: |
    Without IAM Database Authentication, database credentials need to be managed internally, increasing the risk of credential leakage and unauthorized access.
  remediation: |
    Enable IAM Database Authentication for MySQL and PostgreSQL RDS database instances to leverage IAM for secure, token-based access control.
  reference:
    - https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.html
  metadata:
    max-request: 2
  tags: cloud,devops,aws,amazon,rds,aws-cloud-config
variables:
  region: "ap-northeast-1"

flow: |
  code(1)
  for(let DBInstances of iterate(template.instances)){
    set("db", DBInstances)
    code(2)
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      aws rds describe-db-instances --region $region --output json --query 'DBInstances[?Engine==`mysql` || Engine==`postgres`].DBInstanceIdentifier | []'

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

  - engine:
      - sh
      - bash
    source: |
         aws rds describe-db-instances --region $region --db-instance-identifier $db --query 'DBInstances[*].IAMDatabaseAuthenticationEnabled'

    matchers:
      - type: word
        words:
          - 'false'

    extractors:
      - type: dsl
        dsl:
          - '"Database Authentication feature is not enabled for RDS database instance " + db'
# digest: 490a00463044022063a51b81cf2a6f80f3a19a3ba2fea4cfcf0b107e6ed3e318130da0eb34af064b02203e3ed181443111e2a118232b3346491f33c28f61d82cd86f3751558da9570d50:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

$ nuclei -u "URL" -t "cloud/aws/rds/iam-db-auth.yaml"

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