SQS Queue Exposed

ID: sqs-queue-exposed

Severity: high

Author: DhiyaneshDK

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

Description

Identify any publicly accessible Amazon SQS queues and update their permissions in order to protect against unauthorized users.

YAML Source

id: sqs-queue-exposed

info:
  name: SQS Queue Exposed
  author: DhiyaneshDK
  severity: high
  description: |
    Identify any publicly accessible Amazon SQS queues and update their permissions in order to protect against unauthorized users.
  impact: |
    Exposing an SQS Queue can lead to unauthorized access, allowing attackers to intercept, delete, or manipulate messages, disrupting application workflows.
  remediation: |
    Restrict access to the SQS Queue using IAM policies, ensuring only authorized users and services have necessary permissions, and enable server-side encryption for data protection.
  reference:
    - https://www.trendmicro.com/cloudoneconformity-staging/knowledge-base/aws/SQS/sqs-queue-exposed.html
    - https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingKMSEncryption.html
  tags: cloud,devops,aws,amazon,sqs,aws-cloud-config

variables:
  region: "us-west-2"

flow: |
  code(1)
  for(let QueueUrls of iterate(template.queueurls)){
    set("queueurl", QueueUrls)
    code(2)
  }

self-contained: true

code:
  - engine:
      - sh
      - bash
    source: |
      aws sqs list-queues --region $region --query 'QueueUrls[*]' --output json

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

  - engine:
      - sh
      - bash
    source: |
        aws sqs get-queue-attributes --region $region --queue-url $queueurl --attribute-names "Policy" --query 'Attributes.Policy' --output json

    matchers:
      - type: word
        words:
          - '"AWS": "*"'

    extractors:
      - type: dsl
        dsl:
          - '"SQS Queue " + queueurl + " is Exposed"'
# digest: 4b0a00483046022100a38adb8365e2b1af5657b39475128387e45e8e7fe459e01c4dd6e38151ff209f022100f30d99e73587bfb138921cef53734d1921d682b29ba858353dc5ed8bf9693be0:922c64590222798bb761d5b6d8e72950

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/sqs/sqs-queue-exposed.yaml"

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