Added Security Policy and Threat Model for Log Plugin (#828)

* Initial threat model and security contact

* Corrections and finalize policy

plugins/log/SECURITY.md

@@ -0,0 +1,55 @@
+# Security Policy
+
+**Do not report security vulnerabilities through public GitHub issues.**
+
+**Please use the [Private Vulnerability Disclosure](https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing-information-about-vulnerabilities/privately-reporting-a-security-vulnerability#privately-reporting-a-security-vulnerability) feature of GitHub.**
+
+Include as much of the following information:
+
+- Type of issue (e.g. improper input parsing, privilege escalation, etc.)
+- The location of the affected source code (tag/branch/commit or direct URL)
+- Any special configuration required to reproduce the issue
+- The distribution affected or used to help us with reproduction of the issue
+- Step-by-step instructions to reproduce the issue
+- Ideally a reproduction repository
+- Impact of the issue, including how an attacker might exploit the issue
+
+We prefer to receive reports in English.
+
+## Contact
+
+Please disclose a vulnerability or security relevant issue here: [https://github.com/tauri-apps/plugins-workspace/security/advisories/new](https://github.com/tauri-apps/plugins-workspace/security/advisories/new).
+
+Alternatively, you can also contact us by email via [[email protected]](mailto:[email protected]).
+
+## Threat Model
+
+### Security Assumptions
+
+- The log file interpreting applications are hardened, as input is not sanitized
+- No log events in the rust core are leaked to the frontend unless explicitly configured to output to the `TargetKind::Webview` component
+- The log events generated in the frontend can be accessed from everywhere in the frontend
+- There is no secret censoring inbuilt and developers need to take care of what they log in their application
+
+### Threats
+
+#### Secret Leakage
+
+One possible threat you need to consider when using this plugin is that secrets
+in logs can theoretically be leaked when the application's frontend gets compromised.
+
+For this threat to be possible all of the following requirements need to be fulfilled:
+- `TargetKind::Webview` enabled OR secrets stem from frontend logs
+- Frontend application is compromised via something like XSS (cross-site-scripting) OR logs are directly exposed
+- Logs contain secrets or sensitive information
+
+If these requirements are not met, the leakage should not be possible.
+
+#### Out Of Scope
+
+- Any exploits on the log viewer/file viewer accessing the logs
+
+## Best Practices
+
+Do not log secrets or sensitive values in your logging and ensure that the upstream crates are not leaking such values in their logging events.
+Ensure that logs are sanitized or trusted before opening them with third party tools.