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Protecting Tokens and Assertions from Forgery, Theft, and Misuse: Implementation Recommendations for Agencies and Cloud Service Providers

All CISA Advisories

Overview

The National Institute of Standards and Technology (NIST) and CISA have released a report aimed at federal agencies and cloud service providers, outlining how to safeguard identity assertions, access tokens, and cryptographic methods crucial for modern authentication and authorization. With the rise of hybrid and multi-cloud environments, these tokens are increasingly targeted by attackers who aim to forge, steal, or misuse them to gain unauthorized access to sensitive data. The report updates previous drafts by incorporating feedback on key areas like token validation and secrets management, ensuring agencies have the latest guidance on defending against potential threats. It emphasizes the importance of adopting Secure by Design principles to ensure interoperability and security across different cloud systems. This guidance comes in response to the growing need for robust security measures in an evolving digital landscape.

Key Takeaways

  • Affected Systems: Identity assertions, access tokens, cryptographic mechanisms
  • Action Required: Implement updated guidelines for token validation, secrets management, and detection strategies as per NIST and CISA recommendations.
  • Timeline: Disclosed on October 2023

Original Article Summary

Developed by the National Institute of Standards and Technology (NIST) and CISA, this interagency report provides federal agencies and cloud service providers with guidelines to protect the identity assertions, access tokens, and cryptographic mechanisms that support modern authentication and authorization. As agencies adopt hybrid and multi-cloud environments, single sign-on, federation, and application programming interface (API)-based access increasingly depend on signed tokens and assertions that adversaries may target for forgery, theft, and misuse to move laterally across enterprise networks and access sensitive data. This final report updates the initial public draft and incorporates feedback on token validation, secrets management, and detection at scale, as well as input from government and industry experts that CISA gathered through its Joint Cyber Defense Collaborative. The report expands on NIST Special Publication Security and Privacy Controls for Information Systems and Organizations and supports Executive Order 14306 on secure software development practices. It provides architectural considerations and emphasizes the importance of Secure by Design principles for interoperable defense across cloud environments.

Impact

Identity assertions, access tokens, cryptographic mechanisms

Exploitation Status

The exploitation status is currently unknown. Monitor vendor advisories and security bulletins for updates.

Timeline

Disclosed on October 2023

Remediation

Implement updated guidelines for token validation, secrets management, and detection strategies as per NIST and CISA recommendations.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

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