Objective: Exfiltrate Data or Execute Arbitrary Code on Server
+-----------------------------------------------------+
| Exfiltrate Data or Execute Arbitrary Code on Server |
+-----------------------------------------------------+
^
|
+-----------------+
| |
+---------------+---------------+
| Exploit Server |
| Rendering (SSR) |
| Vulnerabilities |
+---------------+---------------+
^ [HIGH RISK]
|
+---------------+---------------+
| | |
+-------+-------+ +-------+-------+
| Node.js | | React |
| Vulnerabilities| | Component |
| in ExecJS | | Injection |
| Context | | |
+-------+-------+ +-------+-------+
| {CRITICAL} | [HIGH RISK]
+-------+-------+ +-------+-------+
| Outdated | | XSS via |
| Node.js | | Server- |
| Version | | Rendered |
| {CRITICAL} | | Content |
| | | {CRITICAL} |
+-------+-------+ +-------+-------+
+---------------+---------------+
| Exploit |
| Configuration |
| Issues |
+---------------+---------------+
^
|
+---------------+
| |
+-------+-------+
| Leaked |
| API Keys |
| in Config |
| Files |
| {CRITICAL} | +-------+-------+
Attack Tree Path: Exploit Server Rendering (SSR) Vulnerabilities [HIGH RISK]
This entire path is considered high-risk due to the inherent dangers of executing JavaScript on the server, a core feature of SSR.
-
Node.js Vulnerabilities in ExecJS Context {CRITICAL}
- Attack Vector: Exploiting vulnerabilities within the Node.js runtime environment used by ExecJS for server-side rendering.
- Details:
- Attackers leverage known vulnerabilities in specific Node.js versions.
- These vulnerabilities can allow for arbitrary code execution on the server.
- Often, exploits are publicly available, making this a low-effort attack.
- Specific Attack:
- Outdated Node.js Version {CRITICAL}:
- Description: The application uses an outdated Node.js version with known security vulnerabilities.
- Impact: Complete server compromise, allowing the attacker to execute arbitrary code, access sensitive data, and potentially pivot to other systems.
- Mitigation: Crucially, keep the Node.js version up-to-date. Use a version manager (nvm, asdf) and regularly check for security updates. Use dependency checkers (npm audit, yarn audit).
- Outdated Node.js Version {CRITICAL}:
-
React Component Injection [HIGH RISK]
- Attack Vector: Injecting malicious code into React components during the server-side rendering process.
- Details:
- Attackers manipulate input data to inject malicious JavaScript.
- If this data is not properly sanitized before being used in SSR, the injected code will execute on the server.
- Specific Attack:
- XSS via Server-Rendered Content {CRITICAL}:
- Description: User-supplied data is not properly sanitized before being passed to React components for server-side rendering, allowing for the injection of malicious JavaScript.
- Impact: Server-side code execution, leading to potential data exfiltration, server compromise, and further attacks.
- Mitigation: Strictly sanitize all user-supplied data before it is used in server-side rendering. Use a robust HTML sanitization library (like DOMPurify on the server, if possible, or a Rails-specific sanitization helper). Never trust user input. Consider a Content Security Policy (CSP). Sanitize before data hits the React component on the server.
- XSS via Server-Rendered Content {CRITICAL}:
Attack Tree Path: Exploit Configuration Issues
- Specific Attack:
- Leaked API Keys in Config Files {CRITICAL}:
- Description: Sensitive API keys or other credentials are hardcoded in
react_on_rails
configuration files, which are then accidentally exposed (e.g., committed to a public repository). - Impact: Direct access to the services protected by those API keys, potentially leading to data breaches, financial loss, and reputational damage.
- Mitigation: Never hardcode sensitive credentials in configuration files. Use environment variables. Use a gem like
dotenv-rails
in development. In production, use your hosting provider's mechanism for setting environment variables (Heroku config vars, AWS Parameter Store, etc.).
- Description: Sensitive API keys or other credentials are hardcoded in
- Leaked API Keys in Config Files {CRITICAL}: