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Latest</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Kubernetes Security Best Practices</h1></header><h3 class="anchor anchorWithStickyNavbar_LWe7" id="restricting-cloud-metadata-api-access">Restricting cloud metadata API access<a href="#restricting-cloud-metadata-api-access" class="hash-link" aria-label="Direct link to Restricting cloud metadata API access" title="Direct link to Restricting cloud metadata API access"></a></h3><p>Cloud providers such as AWS, Azure, DigitalOcean or GCP often expose metadata services locally to instances. By default, this endpoint is accessible by pods running on a cloud instance, including pods in hosted Kubernetes providers such as EKS, AKS, DigitalOcean Kubernetes or GKE, and can contain cloud credentials for that node, provisioning data such as kubelet credentials, or other sensitive data. To mitigate this risk when running on a cloud platform, follow the <a href="https://kubernetes.io/docs/tasks/administer-cluster/securing-a-cluster/#restricting-cloud-metadata-api-access" target="_blank" rel="noopener noreferrer">Kubernetes security recommendations</a>: limit permissions given to instance credentials, use network policies to restrict pod access to the metadata API, and avoid using provisioning data to deliver secrets.</p><p>It is advised to consult your cloud provider's security best practices for further recommendations and specific details on how to restrict access to cloud instance metadata API.</p><p>Further references: MITRE ATT&CK knowledge base on - <a href="https://attack.mitre.org/techniques/T1552/005/" target="_blank" rel="noopener noreferrer">Unsecured Credentials: Cloud Instance Metadata API</a>.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/rancher/rancher-docs/edit/main/docs/reference-guides/rancher-security/kubernetes-security-best-practices.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"><span class="theme-last-updated">Last updated<!-- --> on <b><time datetime="2023-10-02T14:47:31.000Z">Oct 2, 2023</time></b></span></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/reference-guides/rancher-security/selinux-rpm/about-rke2-selinux"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">About rke2-selinux</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/reference-guides/rancher-security/rancher-security-best-practices"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Rancher Security Best Practices</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#restricting-cloud-metadata-api-access" class="table-of-contents__link toc-highlight">Restricting cloud metadata API access</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2024 SUSE Rancher. 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