azure-postgres-log-duration-disabled: Azure PostgreSQL Log Duration Not Enabled

id: azure-postgres-log-duration-disabled
info:
  name: Azure PostgreSQL Log Duration Not Enabled
  author: princechaddha
  severity: medium
  description: |
    Ensure that "log_duration" server parameter is enabled for all PostgreSQL database servers created in your Microsoft Azure cloud account. Once enabled, the "log_duration" parameter allows recording the duration of each completed PostgreSQL statement. Only users with administrative privileges can change this setting within Azure PostgreSQL server configuration. For database clients using extended query protocol, the duration of the "Parse", "Bind", and "Execute" steps is logged independently.
  impact: |
    Disabling the "log_duration" parameter prevents logging of query execution times, which is crucial for performance analysis and security auditing.
  remediation: |
    Enable the "log_duration" parameter in Azure PostgreSQL server configurations to ensure comprehensive logging of query durations for security and performance analysis.
  reference:
    - https://docs.microsoft.com/en-us/azure/postgresql/concepts-server-logs
  tags: cloud,devops,azure,microsoft,postgresql,azure-cloud-config

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

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      az postgres server list --output json --query '[*].{"name":name,"resourceGroup":resourceGroup}'

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

  - engine:
      - sh
      - bash
    source: |
      az postgres server configuration show --server-name "$name" --resource-group "$resourceGroup" --name log_duration --query 'value'

    matchers:
      - type: word
        words:
          - 'off'

    extractors:
      - type: dsl
        dsl:
          - 'name + " in " + resourceGroup + " has log_duration disabled"'
# digest: 490a0046304402203017e10950a2d5cbbde2b8b1e6ea6c3873156078d5fbafedd35fc4f89be9bbc1022030a6361e9ad0b311afbe10e74e29841c1ebfd6bb4f3e6b96f12d0f4859762c73:922c64590222798bb761d5b6d8e72950