Microsoft has launched the Cloud Web Applications Threat Matrix, a MITRE ATT&CK-aligned framework designed to help security teams understand, prioritize, and mitigate threats targeting cloud-hosted web applications and serverless platforms. The matrix maps adversary tactics and techniques specific to cloud web apps, enabling defenders to align their detection and response strategies with known attack patterns.
What the Threat Matrix Covers
The Cloud Web Applications Threat Matrix focuses on threats targeting cloud-hosted web applications and serverless platforms such as Azure App Service, Azure Functions, and similar services across AWS and GCP. It maps adversary behaviors to the MITRE ATT&CK framework, covering initial access, execution, persistence, privilege escalation, defense evasion, credential access, discovery, lateral movement, collection, exfiltration, and impact. This comprehensive coverage ensures defenders can systematically analyze threats across the full attack lifecycle in cloud-native environments.
Each tactic in the matrix is broken down into specific techniques observed in real-world attacks against cloud web apps. Examples include exploiting misconfigured CORS policies, abusing serverless function triggers for code injection, and manipulating OAuth consent grants to establish persistence. The matrix emphasizes cloud-specific attack surfaces often overlooked in traditional threat models, such as insecure function-as-a-service configurations and excessive permissions in managed identity assignments.
By aligning with MITRE ATT&CK, the matrix enables security teams to leverage existing ATT&CK-based tools and processes. This includes mapping alerts from SIEMs, SOAR platforms, and threat intelligence feeds directly to the matrix to identify coverage gaps and prioritize hunting or detection engineering efforts. Teams can use standardized ATT&CK identifiers to streamline reporting and improve cross-tool consistency in threat analysis workflows.
How Defenders Can Use the Matrix
Security teams can use the matrix to assess their current defenses against cloud web application threats. By mapping existing security controls, detections, and mitigations to the matrix, teams can visualize which tactics and techniques are covered and where gaps exist. This supports rational prioritization of investments in detection, prevention, and response, allowing organizations to focus resources on the most relevant attack paths based on observed adversary behavior.
The matrix supports threat modeling during the design phase of cloud web applications. Developers and architects can reference it to anticipate likely attack paths and implement mitigations early—such as enforcing least-privilege access for function apps, validating input in webhooks, or monitoring for anomalous token usage in serverless workflows. Early integration reduces costly rework and strengthens the security posture of applications before deployment.
Microsoft recommends integrating the matrix into red teaming and penetration testing exercises. By simulating attacks aligned to the matrix’s techniques, organizations can validate their defenses and improve incident response playbooks for cloud-specific scenarios like function hijacking or API abuse. This proactive approach helps uncover blind spots in logging and alerting that might only appear under realistic attack conditions.
Availability and Integration
The Cloud Web Applications Threat Matrix is publicly available via the Microsoft Security Blog and associated GitHub repository. It is provided in multiple formats including JSON, Excel, and STIX 2.1 to support ingestion into security platforms, threat intelligence feeds, and automated workflows. These formats ensure compatibility with a wide range of existing security tools and automation frameworks used by enterprise teams.
Microsoft plans to update the matrix regularly based on emerging threat intelligence and real-world attack data from Azure, Microsoft Defender for Cloud, and global threat monitoring. Community contributions are encouraged through the GitHub repository to ensure the matrix remains current and comprehensive. This collaborative model helps capture novel attack techniques as they emerge in the wild.
The matrix complements other Microsoft threat modeling resources such as the Azure Threat Research Matrix and the Cloud Security Benchmark. Together, they provide a layered approach to securing cloud workloads, with the Web Applications Threat Matrix focusing specifically on the application layer in cloud environments. This layered strategy allows teams to address threats at multiple levels, from infrastructure to runtime behavior.
What to do next
Security teams should review the Cloud Web Applications Threat Matrix and map it against their current cloud web application defenses. Start by identifying one high-risk technique from the matrix—such as serverless injection via poorly secured webhooks—and validate whether your monitoring and controls can detect or prevent it. Then, prioritize closing the most critical gaps based on exploit likelihood and potential impact.
Source: Threat matrix: Mapping threats across cloud web applications (Azure).
