VPC Endpoints Not Deployed

ID: vpc-endpoints-not-deployed

Severity: medium

Author: princechaddha

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

Description

Ensures VPC endpoints are utilized for secure AWS service connectivity without needing an Internet Gateway, enhancing network security and efficiency.

YAML Source

id: vpc-endpoints-not-deployed
info:
  name: VPC Endpoints Not Deployed
  author: princechaddha
  severity: medium
  description: |
    Ensures VPC endpoints are utilized for secure AWS service connectivity without needing an Internet Gateway, enhancing network security and efficiency.
  impact: |
    Avoids data exposure and reduces bandwidth use by ensuring AWS traffic remains within the AWS network, without public IP requirements for EC2 instances.
  remediation: |
    Implement VPC endpoints for supported AWS services to secure and optimize connectivity within your VPC, minimizing external access risks.
  reference:
    - https://docs.aws.amazon.com/vpc/latest/userguide/vpc-endpoints.html
  metadata:
    max-request: 2
  tags: cloud,devops,aws,amazon,vpc,aws-cloud-config
variables:
  region: "us-east-1"

flow: |
  code(1)
  for(let VpcIds of iterate(template.VpcId)){
    set("vpc", VpcIds)
    code(2)
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      aws ec2 describe-vpcs --region $region --query 'Vpcs[*].VpcId' --output json

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

  - engine:
      - sh
      - bash
    source: |
         aws ec2 describe-vpc-endpoints --region $region --filters Name=vpc-id,Values=$vpc --query 'VpcEndpoints[*].VpcEndpointId'

    matchers:
      - type: word
        words:
          - "[]"

    extractors:
      - type: dsl
        dsl:
          - '"VPC Endpoints Not Deployed in the VPC network " + vpc'
# digest: 490a0046304402203edd538b4e37cb427dfca2c03d8187bdc1e32f6d9f1a31b46a354aceaadb5d1302203cd03dabc51041551d5f77ab984c38a578a3de71cb100ca85a60cb29f1fca583:922c64590222798bb761d5b6d8e72950

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/vpc/vpc-endpoints-not-deployed.yaml"

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