azure-storage-trusted-access-disabled: Azure Storage Trusted Microsoft Services Access Disabled

2025-08-01 Azure Storage PoC Public

Description

Ensure that "Allow trusted Microsoft services to access this storage account" exception is enabled within your Azure Storage account configuration settings to grant access to trusted cloud services.

PoC

id: azure-storage-trusted-access-disabled
info:
  name: Azure Storage Trusted Microsoft Services Access Disabled
  author: princechaddha
  severity: medium
  description: |
    Ensure that "Allow trusted Microsoft services to access this storage account" exception is enabled within your Azure Storage account configuration settings to grant access to trusted cloud services.
  impact: |
    Not allowing trusted Microsoft services to access the storage account can restrict functionality and impact service continuity.
  remediation: |
    Enable the "Allow trusted Microsoft services to access this storage account" exception in the Azure portal under Storage account settings.
  reference:
    - https://docs.microsoft.com/en-us/azure/storage/common/storage-network-security
  tags: cloud,devops,azure,microsoft,storage,azure-cloud-config

flow: |
  code(1);
  for (let StorageAccountData of iterate(template.storageAccounts)) {
    StorageAccountData = JSON.parse(StorageAccountData);
    set("name", StorageAccountData.Name);
    code(2);
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      az storage account list --query '[*].{"Name":name}'

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

  - engine:
      - sh
      - bash
    source: |
      az storage account show --name "$name" --query 'networkRuleSet.bypass' --output json

    matchers:
      - type: word
        words:
          - 'None'

    extractors:
      - type: dsl
        dsl:
          - 'name + " does not have trusted Microsoft services access enabled"'
# digest: 4a0a00473045022002c7fbf359dd81142d5676a3b57655b4534ed89bf26361f27d81076142510edb022100fa8914e52bb9f82365def85aef6e854da9bdfc7a707baa0da7ffd79a0bf37690:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

Related Vulnerabilities