Access Logging for OSS Buckets - Disabled

ID: access-logoss-disabled

Severity: medium

Author: DhiyaneshDK

Tags: cloud,devops,aliyun,alibaba,aliyun-cloud-config,alibaba-oss

Description

Disabling access logging for OSS buckets reduces the ability to monitor and audit access, increasing the risk of undetected unauthorized activity.

YAML Source

id: access-logoss-disabled

info:
  name: Access Logging for OSS Buckets - Disabled
  author: DhiyaneshDK
  severity: medium
  description: |
    Disabling access logging for OSS buckets reduces the ability to monitor and audit access, increasing the risk of undetected unauthorized activity.
  reference:
    - https://www.trendmicro.com/cloudoneconformity/knowledge-base/alibaba-cloud/AlibabaCloud-OSS/enable-bucket-access-logging.html
    - https://www.alibabacloud.com/help/en/oss/user-guide/getting-started
    - https://www.alibabacloud.com/help/en/oss/user-guide/enable-logging
  metadata:
    max-request: 2
    verified: true
  tags: cloud,devops,aliyun,alibaba,aliyun-cloud-config,alibaba-oss

variables:
  region: "cn-hangzhou"

flow: |
  code(1)
  for (let BucketName of iterate(template.bucketname)) {
    set("bucket", BucketName)
    code(2)
  }

self-contained: true

code:
  - engine:
      - sh
      - bash

    source: |
      aliyun oss ls --region $region

    extractors:
      - type: regex
        name: bucketname
        internal: true
        regex:
          - 'oss://([a-zA-Z0-9-]+)'

  - engine:
      - sh
      - bash

    source: |
      aliyun oss logging --method get $bucket --region $region

    matchers:
      - type: word
        words:
          - '<LoggingEnabled>'
          - '<TargetBucket></TargetBucket>'
        condition: and

    extractors:
      - type: dsl
        dsl:
          - 'bucket + " Access Logging for OSS Buckets is Disabled "'
# digest: 490a0046304402202c7db531327c5aa97814ff449d8796b0520264e13d531fcebdf3e90d64252cb60220045d1db959712237219b389022dbaabf1bcb023ca5151e5539546aad2819d8c7:922c64590222798bb761d5b6d8e72950

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/alibaba/oss/access-logoss-disabled.yaml"

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