Missing SSL Certificate Auto-Renewal in Azure Key Vaults

ID: azure-keyvault-ssl-autorenewal-missing

Severity: high

Author: princechaddha

Tags: cloud,devops,azure,microsoft,keyvault,azure-cloud-config

Description

Microsoft Azure Key Vault service can renew your SSL certificates automatically to prevent application or service outages, credential leaks, or process violations that can disrupt your business. Ensure that your SSL certificates in Azure Key Vaults are set to auto-renew.

YAML Source

id: azure-keyvault-ssl-autorenewal-missing
info:
  name: Missing SSL Certificate Auto-Renewal in Azure Key Vaults
  author: princechaddha
  severity: high
  description: |
    Microsoft Azure Key Vault service can renew your SSL certificates automatically to prevent application or service outages, credential leaks, or process violations that can disrupt your business. Ensure that your SSL certificates in Azure Key Vaults are set to auto-renew.
  impact: |
    Not enabling auto-renewal for SSL certificates can lead to expired certificates, potentially causing outages and security risks.
  remediation: |
    Configure SSL certificates in Azure Key Vaults to automatically renew by setting the correct policies in the Azure portal or through Azure CLI.
  reference:
    - https://docs.microsoft.com/en-us/azure/key-vault/certificates/how-to-renew-certificate
  tags: cloud,devops,azure,microsoft,keyvault,azure-cloud-config

flow: |
  code(1);
  for (let KeyVaultName of iterate(template.keyVaultNames)) {
    set("vaultName", KeyVaultName)
    code(2);
    for (let CertificateId of iterate(template.certificateIds)) {
      set("certificateId", CertificateId)
      code(3)
    }
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      az keyvault list --query '[*].name' --output json

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

  - engine:
      - sh
      - bash
    source: |
      az keyvault certificate list --vault-name $vaultName --query '[?(attributes.enabled==`true`)].id' --output json

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

  - engine:
      - sh
      - bash
    source: |
      az keyvault certificate show --id $certificateId --query 'policy.lifetimeActions[*].action.actionType' --output json

    matchers:
      - type: word
        words:
          - '"EmailContacts"'

    extractors:
      - type: dsl
        dsl:
          - 'vaultName + " SSL certificate " + certificateId + " does not have auto-renewal enabled"'
# digest: 490a0046304402205274191a83b2edc77c52e0de27ca279e7d55fa404864355e91a5ade7bc57da87022049fde2dacb979bebf7044dac0a369f61e16120dc51128bca81d57f9e7ee578fb: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/azure/keyvault/azure-keyvault-ssl-autorenewal-missing.yaml"

View on Github