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Attack Tree Analysis for yewstack/yew

Objective: Compromise Yew Application by Exploiting Yew-Specific Weaknesses.

Attack Tree Visualization

Attack Goal: Compromise Yew Application [CRITICAL NODE] ├───[AND]─ Exploit Client-Side Rendering Vulnerabilities (Yew Specific) [HIGH-RISK PATH START] │ ├───[OR]── Cross-Site Scripting (XSS) via Yew Rendering [CRITICAL NODE] │ │ ├───[AND]─ Inject Malicious Script through User Input [HIGH-RISK PATH CONTINUES] │ │ │ ├───[Leaf]─ Unescaped User Input in Yew Components [CRITICAL NODE] │ └───[HIGH-RISK PATH END] ├───[AND]─ Exploit Dependency Vulnerabilities (Yew Ecosystem & Rust Crates) [HIGH-RISK PATH START] │ ├───[OR]── Outdated Yew Version or Dependencies [CRITICAL NODE] │ │ ├───[AND]─ Using Vulnerable Yew Version [HIGH-RISK PATH CONTINUES] │ │ ├───[AND]─ Using Vulnerable Rust Crates (Dependencies) [HIGH-RISK PATH CONTINUES] │ └───[HIGH-RISK PATH END]

Attack Tree Path: Exploit Client-Side Rendering Vulnerabilities -> Cross-Site Scripting (XSS) via Yew Rendering

  • Critical Node: Cross-Site Scripting (XSS) via Yew Rendering

    • Attack Vector: Injecting malicious scripts that are rendered by Yew and executed in the user's browser.

    • Likelihood: Medium-High

    • Impact: Significant-Critical

    • Effort: Low-Medium

    • Skill Level: Beginner-Intermediate

    • Detection Difficulty: Medium

    • Mitigation:

      • Implement proper escaping/sanitization of user inputs in Yew components using html! macro's escaping features or dedicated sanitization libraries.
      • Utilize Content Security Policy (CSP) to limit script execution sources.
      • Regularly audit and update third-party Yew components.

    • Critical Node: Unescaped User Input in Yew Components

      • Attack Vector: Failing to properly escape or sanitize user-provided data before rendering it in Yew components, leading to XSS.
      • Likelihood: Medium-High
      • Impact: Significant-Critical
      • Effort: Low-Medium
      • Skill Level: Beginner-Intermediate
      • Detection Difficulty: Medium
      • Mitigation:
        • Always use Yew's html! macro for rendering user input, which provides automatic escaping.
        • If raw HTML rendering is absolutely necessary, sanitize input using a trusted sanitization library before rendering.
        • Avoid dangerously_set_inner_html unless with extreme caution and proper sanitization.

Attack Tree Path: Exploit Dependency Vulnerabilities -> Outdated Yew Version or Dependencies

  • Critical Node: Outdated Yew Version or Dependencies
    • Attack Vector: Exploiting known vulnerabilities present in outdated versions of the Yew framework or its Rust crate dependencies.
    • Likelihood: Medium (Overall, considering both Yew and crate dependencies)
    • Impact: Significant-Critical (Depends on the specific vulnerability)
    • Effort: Low-Medium (If public exploits exist for known vulnerabilities)
    • Skill Level: Beginner-Intermediate (If public exploits exist)
    • Detection Difficulty: Easy-Medium (Vulnerability scanners can detect known dependency vulnerabilities)
    • Mitigation:

      • Critical Node: Using Vulnerable Yew Version

        • Attack Vector: Running an outdated version of the Yew framework with known security vulnerabilities.
        • Likelihood: Low-Medium (Depends on how outdated the Yew version is)
        • Impact: Significant-Critical (Depends on the specific Yew vulnerability)
        • Effort: Low-Medium (If exploits are publicly available)
        • Skill Level: Beginner-Intermediate (If exploits are publicly available)
        • Detection Difficulty: Easy-Medium (Vulnerability scanners can detect outdated Yew versions)
        • Mitigation:
          • Regularly update the Yew framework to the latest stable version.
          • Subscribe to Yew security advisories and release notes.

      • Critical Node: Using Vulnerable Rust Crates (Dependencies)

        • Attack Vector: Using vulnerable Rust crates (dependencies) in the Yew application.
        • Likelihood: Medium (Rust crate vulnerabilities are regularly discovered)
        • Impact: Significant (Depends on the vulnerable crate and the specific vulnerability)
        • Effort: Low-Medium (If exploits are publicly available)
        • Skill Level: Beginner-Intermediate (If exploits are publicly available)
        • Detection Difficulty: Easy-Medium (Tools like cargo audit can detect known crate vulnerabilities)
        • Mitigation:
          • Regularly audit and update Rust crate dependencies using cargo audit.
          • Monitor security advisories for Rust crates used in the application.
          • Implement a dependency management strategy for timely updates.