SQS Dead Letter Queue - Disabled

ID: sqs-deadletter-disabled

Severity: medium

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-deadletter-disabled

info:
  name: SQS Dead Letter Queue - Disabled
  author: DhiyaneshDK
  severity: medium
  description: |
    Identify any publicly accessible Amazon SQS queues and update their permissions in order to protect against unauthorized users.
  impact: |
    Disabling SQS Dead Letter Queue can lead to message loss or processing failures going unnoticed, impacting application reliability and error handling.
  remediation: |
    Enable and configure a Dead Letter Queue (DLQ) to capture and isolate undelivered messages for troubleshooting and retries.
  reference:
    - https://www.trendmicro.com/cloudoneconformity-staging/knowledge-base/aws/SQS/dead-letter-queue.html
    - https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-dead-letter-queues.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 RedrivePolicy --query 'Attributes.RedrivePolicy' --output json

    matchers:
      - type: word
        words:
          - 'null'

    extractors:
      - type: dsl
        dsl:
          - '"SQS Dead Letter Queue " + queueurl + " is Disabled"'
# digest: 490a0046304402207e07ef8457577d7d2b255b53699794d8c141cebf5eac23f99bb82c02ad3b6f7202201f457f4174ef3e3fb16a99ba6046aaceca0c2cfd648e64e6e952238f4453fbd6:922c64590222798bb761d5b6d8e72950

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-deadletter-disabled.yaml"

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