Adding a threat model template (radius-project#64)

Separating the threat model template from the
[PR](radius-project#60).

---------

Signed-off-by: ytimocin <[email protected]>
Signed-off-by: Yetkin Timocin <[email protected]>
Co-authored-by: Ryan Nowak <[email protected]>

.github/config/en-custom.txt

@@ -777,4 +777,5 @@ tradeoff
 contrib
 carte
 customizable
-implementers
+implementers
+untrusted

template/YYYY-MM-threat-model-template.md

@@ -0,0 +1,136 @@
+# Title
+
+- **Author**: Your name (@YourGitHubUserName)
+
+## Overview
+
+<!--
+Provide a succinct high-level description of the system, feature, or component being analyzed. Explain why a threat model is being created for this system, feature, or component. This section should be one to three paragraphs long and understandable by someone outside the Radius team.
+
+Provide links to supporting documentation like feature specs and design documents rather than duplicating information.
+-->
+
+## Terms and Definitions
+
+<!--
+Include any terms, definitions, or acronyms that are used in this threat model document to assist the reader. They may or may not be part of the user-facing experience once implemented, and can be specific to this design context.
+-->
+
+## System Description
+
+<!--
+Provide a detailed description of the system or feature being modeled. Include information key components, and interactions with other systems.
+-->
+
+### Architecture
+
+<!-- Overview of the system architecture of the component that is being discussed in this document. -->
+
+### Implementation Details
+
+<!-- What are the components of the implementation -->
+
+**Is there any use of cryptography?**
+
+<!-- Answer YES/NO and, if yes, please describe (the type of the cryptography used, their purpose, and libraries used) -->
+
+<!-- Examples can include encryption and hashing. -->
+
+**Does the component store secrets?**
+
+<!-- Answer YES/NO and, if yes, please describe the type of data and how it is stored. -->
+
+**Does the component process untrusted data or does the component parse any custom formats?**
+
+<!-- Answer YES/NO and, if yes, please describe the type of data and the libraries that are used to parse the data. -->
+
+<!-- Ex: data coming from a user. -->
+
+### Clients
+
+<!-- Clients that communicate with the component that is being reviewed in the threat model. -->
+
+## Trust Boundaries
+
+<!-- Define the limits within which components can interact without additional security checks. They help identify where security controls are needed to protect against threats. -->
+
+## Assumptions
+
+<!-- Outline the conditions presumed to be true for the threat model. These assumptions set the context and scope, highlighting what is considered secure and what is not evaluated. -->
+
+## Data Flows
+
+<!--
+Include a diagram of the system architecture, showing how different components interact. Highlight any areas where security controls are implemented or where threats might be present.
+-->
+
+### Diagram
+
+<!-- The diagram for the threat model. It can be done by using Microsoft Threat Modeling Tool. -->
+
+## Threats
+
+<!--
+
+Use this section to list possible security threats.
+
+For an primer on types of threats please see: https://en.wikipedia.org/wiki/STRIDE_model
+
+Good threats are specific to the design and implementation of the system.
+
+Good: `A malicious user could spoof the 'user id' field and request another user's data leading to unauthorized information disclosure.`
+
+Bad: `If we have a bug, a user might see data they are not authorized to see.`
+
+For each threat copy-paste and fill-out the template below. DO NOT omit fields if you are unsure of the answers.
+
+-->
+
+### Threat 1: Threat about a component
+
+**Description:** <!-- Provide a clear and specific description of the threat, including any malicious actions or system conditions that would cause a vulnerability. -->
+**Impact:** <!-- Provide a clear and specific description of the impact if this threat were exploited. -->
+**Mitigation:** <!-- Describe the existing or possible mitigations in place for this threat. -->
+**Status:** <!-- Describe the status of each mitigation. Is this mitigation already in place (active or planned)? If this mitigation on-by-default or does it require setup by the user?  -->
+
+<!--
+
+And example threat is talking about two servers: Server A and Server B. These servers talk to each other to trigger some actions.
+
+### Threat 1: Spoofing Server A could cause information disclosure
+
+**Description:** An attacker can spoof Server A by tampering with the configuration in the Server B. Server B will start sending requests to the fake Server A which will cause information disclosure.
+
+**Impact:** All data that should be sent to the Server A by Server B will be available to the fake Server A including payloads, headers, and other sensitive information.
+
+**Mitigation:**
+
+1. Regularly rotate and manage server credentials.
+2. Use Role-Based Access Control (RBAC) to limit permissions and enforce the principle of least privilege.
+3. Monitor and audit API server access logs for suspicious activities.
+
+**Status:**
+
+- Credential rotation and management: Active
+- RBAC implementation: Active
+- Monitoring and auditing: Active
+
+-->
+
+## Open Questions
+
+<!--
+List any unresolved questions or uncertainties about the threat model. Use this section to gather feedback from experts or team members and to track decisions made during the review process.
+-->
+
+## Action Items
+
+<!--
+The list of action items that will be done in order to improve the safety of the system.
+-->
+
+## Review Notes
+
+<!--
+Update this section with the decisions and feedback from the threat model review meeting. Document any changes made to the model based on the review.
+-->