Automate FedRAMP container scanning for faster, continuous compliance

Key Takeaways

• FedRAMP container scanning requires authenticated scanning, strict asset tracking, machine-readable reporting, and defined remediation timelines across images, registries, and runtime.
• FedRAMP explicitly requires production systems to be built from hardened, approved images aligned with STIGs and CIS benchmarks. Keeping those images current is one of the hardest parts of compliance.
• Automation is the only sustainable path to maintaining  FedRAMP compliance. Integrating scanning, policy enforcement, remediation workflows, SBOM generation, and reporting into CI/CD and runtime systems enables teams to meet FedRAMP requirements without drowning in operational overhead.
• Evidence and traceability are key components of FedRAMP compliance. Teams must be able to prove when they were found, how they were prioritized, what was done about them, and whether they remain open, mitigated, or accepted.
• Starting with container images that already meet STIG, CIS, and FIPS requirements, like those provided by Echo, removes a massive amount of engineering effort, reduces configuration drift, and lowers audit risk.

What Is FedRAMP Container Scanning?

FedRAMP (Federal Risk and Authorization Management Program) is a mandatory US government program that standardizes security assessment, authorization, and continuous monitoring for cloud products and services in use by Federal agencies.

Container scanning is the process of continuously identifying vulnerabilities, misconfigurations, and policy violations in container images and running workloads in cloud environments.

FedRAMP container scanning is a mandatory US government security requirement pertaining to the scanning of containers in cloud systems. The goal is to reduce and mitigate container-related risks.

Key FedRAMP Vulnerability Scanning Requirements for Containers

The FedRAMP Continuous Monitoring Playbook clearly defines scanning requirements for containers. To meet FedRAMP, the following requirements must be adhered to:

• Scanner Hardening & Resiliency - Scanners must be hardened to prevent unauthorized access or modification. This includes disabling unnecessary services and closing unused ports.
• Authenticated and Authorized Scanning - Scans must be performed “wherever possible” and with full authorization.
• Machine-Readable Scan Results - Risky scan findings must be exported in a structured, machine-readable format such as XML, CSV, or JSON. Vulnerabilities found that are listed in the NIST National Vulnerability Database must include their corresponding CVE identifiers.
• CVSS Risk Scoring - CVSSv3 base scores from the NVD must be used as the primary risk rating when available. If unavailable, CVSSv2 scores are acceptable. If neither exists, the scanner’s native score can be used.
• Scanner Configuration Integrity - Scanner configurations must match the assessor-approved settings. Any deviations from the approved configuration must be explicitly documented and justified.
• Signature & Vulnerability Updates - The list of vulnerabilities scanned must be updated to the most recent update.
• Asset Identification & Inventory - All scan findings must reference unique asset identifiers mapped to a centralized inventory. Assets must be automatically discovered and cataloged monthly, including web services, ephemeral resources, and dynamic environments.
• Container Image Asset Tracking - Every container image class must have a unique identifier documented in the inventory, and all deployed containers must map back to their source images.
• Required Scan Types - It’s required to scan operating systems, web applications, and databases at least monthly.
• Plan of Action and Milestones (POA&M) Management - Each unique vulnerability must be tracked as a separate POA&M item using the scanner’s unique vulnerability ID. 
• Non-Destructive Detection Coverage - All non-destructive detection checks must be enabled within the scanner.
• Image Scanning Responsibilities - When relying on managed images, the source images must be scanned for vulnerabilities.

In addition, the following are the compliance requirements for implementing container technologies. They are listed in the “FedRAMP Vulnerability Scanning Requirements for Containers”:

• Hardened Container Images - Only hardened container images aligned with NIST standards may be used in production environments. General-purpose or unverified images are prohibited, though third-party software may be included within hardened images.
• Automated Build & Deployment Pipelines - Containers must be built, tested, and deployed through automated orchestration pipelines. Containers that fail security or compliance requirements must be automatically blocked from production.
• Pre-Deployment Image Scanning - All container images must be scanned before deployment, ideally within the CI/CD pipeline. Only images scanned within the past 30 days may be deployed into production.
• Continuous Security Sensors - Security sensors may be deployed alongside containers to continuously monitor posture and detect drift. These sensors should cover runtime, registries, and CI/CD environments.
• Registry Monitoring - Container registries must be monitored to prevent unscanned or outdated images from being deployed. This ensures compliance with the 30-day scanning window.
• Container Inventory Reporting - Image-based asset identifiers must be documented in the FedRAMP Integrated Inventory Workbook.

Challenges Teams Face When Implementing FedRAMP Scanning

FedRAMP guidance is extremely prescriptive, but translating it into day-to-day engineering and security workflows can be technically complex. Teams encounter the following challenges:

1. Maintaining Coverage in Ephemeral Environments - Containers, auto-scaling groups, and serverless functions create challenges for traditional IP-based or static asset-based scanners. Resources that spin up and down rapidly can result in blind spots, inconsistent coverage, and difficulty maintaining an accurate asset inventory.

2. Hardening and Maintaining Secure Container Images - FedRAMP requires systems to be deployed from hardened, pre-approved images aligned with STIGs, CIS benchmarks, and organizational policies. Creating these baseline images, validating their configurations, and keeping them updated with security patches requires deep expertise in OS hardening, container security, and cloud platforms.

3. Tooling Complexity and Integration - Meeting FedRAMP controls often requires integrating multiple tools: vulnerability scanners, configuration management systems, SIEM platforms, ticketing systems, asset inventories, and compliance reporting tools. Managing this fragmented toolchain increases operational overhead, creates data silos, and reduces overall visibility into security posture.

4. False Positives and Alert Fatigue - Vulnerability scanners often generate large volumes of findings, many of which are false positives or require contextual analysis to assess actual risk. Manual triage, justification, and suppression of these alerts consume significant time and distract teams.

5. Documentation, Evidence, and Reporting Burden - FedRAMP compliance requires extensive documentation and evidence collection. Every vulnerability must be tracked, risk-assessed, justified, and remediated or mitigated with monthly status updates. Reports must be produced in specific structured formats (such as POA&M) and delivered on strict schedules. This manual process quickly becomes overwhelming.

How to Automate FedRAMP Container Scanning for Continuous Compliance

The new FedRAMP20X initiative aims to help organizations meet FedRAMP requirements through automation. Enterprise-grade solutions like Echo are the surest way to embed effective automation into your container images. That said, below are the key ways automation supports FedRAMP vulnerability management and remediation requirements:

• Pipeline Integration - Embedding image pulls, registry management, vulnerability scanning, SBOM generation, testing, deployment, and policy enforcement into the CI/CD pipeline ensures that only approved and hardened images reach production. This directly supports the requirement for automated build, test, and orchestration controls.
• Automated Detection - Continuous scanning of images before and after deployment enables early detection of vulnerabilities and policy violations. Automated alerts and deployment blocking enforce the 30-day scanning window and ensure inventory changes are reflected in near real time.
• Automated Remediation Workflows - Integration with ticketing systems and remediation workflows enables automatic issue creation, prioritization based on CVSS severity, and tracking to closure. Faster response to critical vulnerabilities strengthens security posture and aligns closely with FedRAMP remediation expectations.
• SBOM and Provenance Automation - Automatically generating SBOMs and building attestations creates traceability from source code to deployed image. This supports software supply chain controls, audit readiness, and provenance requirements.
• Continuous Monitoring and Reporting - Automation enables scheduled exports of vulnerability and inventory data, along with dashboards and compliance reports. This ensures consistent, repeatable evidence collection to meet FedRAMP reporting and assessor review requirements.
• Out-of-the-Box Hardened Images - Using pre-hardened base images that are already configured to meet STIG, CIS, and FedRAMP requirements eliminates the need to build security baselines from scratch. These images provide a compliant foundation that reduces configuration drift, accelerates deployment timelines, and ensures consistency across environments. Teams can focus on application-specific security rather than low-level OS hardening.

How Echo Helps Meet FedRAMP Container Requirements

At Echo, container images are pre-hardened to align with DISA Security Technical Implementation Guides (STIGs) for general-purpose operating systems. Out of the box, they meet DISA baseline requirements at the OS level, giving teams a compliant foundation from day one, without the burden of building and maintaining custom hardening themselves.

All `Echo FIPS & STIG images:

• Run in FIPS-validated cryptographic mode by default
• Use CMVP-certified cryptographic modules appropriate to each runtime environment
• Are hardened and configured in accordance with both the module’s official security policy and DISA STIG GPOS requirements
• Are rigorously tested to ensure non-approved cryptographic algorithms are blocked and fail as expected
• Provide source code (upon request) for AGPL-licensed images, supporting both open-source license compliance and FIPS validation transparency
• Maintain consistent hardening standards across all image variants, reducing configuration drift and simplifying audits
• Are delivered with clear, dedicated tags that identify hardened variants, making it easy to enforce compliant image usage in CI/CD pipelines

FAQs

What makes container scanning different under FedRAMP compared to standard security programs?

FedRAMP container scanning requires continuous monitoring, documented remediation timelines, and audit-ready evidence aligned with federal baselines. Unlike standard programs that may allow periodic or best-effort scanning, FedRAMP enforces consistent coverage across images, registries, and runtime environments with strict reporting and traceability expectations.

What are the FedRAMP requirements for vulnerability scanning?

FedRAMP requires regular and continuous vulnerability scanning using approved tools, severity-based reporting, defined remediation SLAs, and integration with continuous monitoring processes. Results must be retained as evidence, mapped to applicable controls, and reviewed as part of ongoing authorization rather than point-in-time assessments.

How often should FedRAMP container scanning be performed?

FedRAMP container scanning should be continuous. Images must be scanned during builds, registries monitored for new vulnerabilities, and running containers assessed regularly to detect drift or newly disclosed CVEs. This approach ensures compliance is maintained between assessments and reduces the risk of audit findings.