DISA STIG Hardened Ubuntu 25.10 for for Federal and Defense Cloud Workloads

DISA STIG-Aligned Security Hardening

The operating system is configured according to DISA STIG security guidance to enforce defense-grade controls and reduce the attack surface of deployed systems.

• Hardened authentication, password policies, and account management aligned with federal security requirements.
• Secure SSH configuration and restricted administrative access to minimize exposure.
• File system protections, permission controls, and system integrity configurations.
• Centralized logging and auditing configurations to support monitoring, incident response, and forensic analysis.
• Reduced attack surface through least-privilege configurations and hardened system defaults.

Designed to Accelerate ATO and Security Reviews

Federal and defense systems require extensive documentation and validation to achieve Authority to Operate. This image provides a hardened baseline and pre-generated evidence to reduce the time and effort required for system authorization and security assessments.

• Reduces manual operating system hardening during system deployment.
• Provides baseline evidence to support control validation and security documentation.
• Enables reuse of standardized security artifacts across environments.
• Supports automation through machine-readable outputs compatible with compliance tools.
• Improves transparency for ISSOs, auditors, and security reviewers.

Supports DevSecOps and Continuous Authorization (cATO)

Modern federal cloud environments are shifting toward continuous authorization models. The Sedetos hardened Ubuntu 25.10 image supports these practices by providing consistent security baselines and machine-readable artifacts that integrate with automated security validation and monitoring pipelines.

• Enables integration with CI/CD pipelines for automated security validation.
• Supports continuous monitoring and compliance automation workflows.
• Helps identify and remediate security issues earlier in the lifecycle.
• Provides visibility into system components through SBOM artifacts.

Ubuntu 25.10 Platform for Modern Federal Workloads

Ubuntu 25.10 delivers a modern Linux platform with up-to-date packages and cloud-native capabilities. When combined with DISA STIG-aligned hardening, it provides a flexible and secure foundation for development, testing, and controlled production workloads in federal and defense cloud environments.

Intended Compliance Scope

This image and its included artifacts are provided to assist customers with their own security, compliance, and authorization processes. It does not represent official DISA STIG certification, FedRAMP authorization, or DoD approval. Final Authority to Operate decisions remain the responsibility of the customer and their authorizing officials.

We understand that reliability and continuity are critical when choosing an AMI provider, especially for production environments. That’s why we want to assure you that we are in this for the long run.

Our team is dedicated to building and maintaining secure, production-ready, and compliance-aligned AMIs that your business can depend on. We have no intention of discontinuing operations or ending support for our hardened images. In fact, we are actively expanding our portfolio and reinvesting in innovation to meet evolving customer needs.

When you choose our AMIs, you’re choosing a trusted partner committed to your long-term success for today, tomorrow, and years from now.

Deploy with confidence on a hardened, production-ready Ubuntu 25.10 image that delivers the reliability your workloads demand.

Disclaimer: Sedetos is an independent third-party. Our offerings are not affiliated with, endorsed by, or officially connected to Canonical Ltd