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Attack Tree Analysis for bpmn-io/bpmn-js

Objective: Compromise application using bpmn-js by exploiting vulnerabilities within bpmn-js or its integration.

Attack Tree Visualization

0. Compromise Application via bpmn-js [CRITICAL NODE]
    ├── 1. Exploit bpmn-js Vulnerabilities [HIGH-RISK PATH]
    │   ├── 1.1. Known Vulnerabilities in bpmn-js Library [HIGH-RISK PATH]
    │   │   ├── 1.1.1. Exploit Publicly Disclosed CVEs [HIGH-RISK PATH] [CRITICAL NODE]
    ├── 1.2. Vulnerabilities Introduced by bpmn-js Dependencies [HIGH-RISK PATH]
    │   ├── 1.2.1. Exploit Vulnerabilities in bpmn-js's Indirect Dependencies [HIGH-RISK PATH] [CRITICAL NODE]
    ├── 2. Abuse bpmn-js Features/Functionality for Malicious Purposes [HIGH-RISK PATH]
    │   ├── 2.1. Cross-Site Scripting (XSS) via BPMN Diagram Content [HIGH-RISK PATH]
    │   │   ├── 2.1.1. Inject Malicious JavaScript in BPMN Diagram Labels/Annotations [HIGH-RISK PATH] [CRITICAL NODE]
    │   │   ├── 2.1.2. Inject Malicious JavaScript in Custom BPMN Properties/Extensions [HIGH-RISK PATH] [CRITICAL NODE]
    └── 3. Social Engineering Targeting bpmn-js Users/Developers [HIGH-RISK PATH]
        ├── 3.1. Phishing or Social Engineering to Obtain Developer Credentials or Access [HIGH-RISK PATH] [CRITICAL NODE]
        │   ├── 3.1.1. Target Developers to Gain Access to Application Code or Infrastructure [HIGH-RISK PATH] [CRITICAL NODE]

Attack Tree Path: 0. Compromise Application via bpmn-js [CRITICAL NODE]

  • Attack Vector: This is the overarching goal. Any successful attack from the sub-tree will lead to this compromise.
  • Impact: Full compromise of the application, potential data breach, service disruption, reputational damage.

Attack Tree Path: 1. Exploit bpmn-js Vulnerabilities [HIGH-RISK PATH]

  • Attack Vectors:
    • Exploiting known vulnerabilities (CVEs) in bpmn-js library.
    • Exploiting vulnerabilities in bpmn-js dependencies (direct and indirect).
  • Impact: Depending on the vulnerability, could lead to:
    • Cross-Site Scripting (XSS)
    • Remote Code Execution (RCE)
    • Denial of Service (DoS)
    • Information Disclosure
    • Prototype Pollution

Attack Tree Path: 1.1. Known Vulnerabilities in bpmn-js Library [HIGH-RISK PATH]

  • Attack Vectors:
    • 1.1.1. Exploit Publicly Disclosed CVEs [HIGH-RISK PATH] [CRITICAL NODE]:
      • Using publicly available exploit code or adapting existing exploits for known CVEs in specific bpmn-js versions.
      • Scanning applications for vulnerable bpmn-js versions and targeting them with exploits.
  • Impact: Same as "Exploit bpmn-js Vulnerabilities" - XSS, RCE, DoS, Information Disclosure, Prototype Pollution.

Attack Tree Path: 1.2. Vulnerabilities Introduced by bpmn-js Dependencies [HIGH-RISK PATH]

  • Attack Vectors:
    • 1.2.1. Exploit Vulnerabilities in bpmn-js's Indirect Dependencies [HIGH-RISK PATH] [CRITICAL NODE]:
      • Identifying vulnerable indirect dependencies of bpmn-js using dependency scanning tools.
      • Exploiting known CVEs in these indirect dependencies that can be triggered through bpmn-js usage or interaction.
  • Impact: Same as "Exploit bpmn-js Vulnerabilities" - XSS, RCE, DoS, Information Disclosure, Prototype Pollution, originating from dependency vulnerabilities.

Attack Tree Path: 2. Abuse bpmn-js Features/Functionality for Malicious Purposes [HIGH-RISK PATH]

  • Attack Vectors:
    • Cross-Site Scripting (XSS) by injecting malicious JavaScript code into BPMN diagram content.
    • Denial of Service (DoS) by crafting malicious BPMN diagrams that overload the client browser or application.
    • Information Disclosure by manipulating BPMN diagrams to reveal sensitive data or application logic.

Attack Tree Path: 2.1. Cross-Site Scripting (XSS) via BPMN Diagram Content [HIGH-RISK PATH]

  • Attack Vectors:
    • 2.1.1. Inject Malicious JavaScript in BPMN Diagram Labels/Annotations [HIGH-RISK PATH] [CRITICAL NODE]:
      • Crafting BPMN diagrams where labels or annotations contain malicious JavaScript code.
      • Submitting or uploading these diagrams to the application.
      • When the application renders the diagram using bpmn-js, the malicious JavaScript executes in the user's browser.
    • 2.1.2. Inject Malicious JavaScript in Custom BPMN Properties/Extensions [HIGH-RISK PATH] [CRITICAL NODE]:
      • If the application uses custom BPMN properties or extensions, injecting malicious JavaScript code into these custom fields within the BPMN diagram.
      • Similar to labels, when the application processes or renders these custom properties, the injected script executes.
  • Impact:
    • Session hijacking (stealing user session cookies).
    • Account takeover.
    • Defacement of the application.
    • Redirection to malicious websites.
    • Data theft or manipulation.
    • Installation of malware on the user's machine.

Attack Tree Path: 3. Social Engineering Targeting bpmn-js Users/Developers [HIGH-RISK PATH]

  • Attack Vectors:
    • Phishing emails or messages targeting developers or users of the application.
    • Social engineering tactics to trick developers into revealing credentials or granting unauthorized access.
    • Compromising developer accounts to gain access to application code, infrastructure, or sensitive data.

Attack Tree Path: 3.1. Phishing or Social Engineering to Obtain Developer Credentials or Access [HIGH-RISK PATH] [CRITICAL NODE]

  • Attack Vectors:
    • 3.1.1. Target Developers to Gain Access to Application Code or Infrastructure [HIGH-RISK PATH] [CRITICAL NODE]:
      • Sending phishing emails disguised as legitimate communications (e.g., from IT department, project management, or bpmn-io community).
      • Creating fake login pages or websites to steal developer credentials.
      • Using social engineering techniques (e.g., pretexting, baiting) to trick developers into revealing passwords, API keys, or other sensitive information.
  • Impact:
    • Access to application source code, allowing for deeper vulnerability analysis and potential backdoor insertion.
    • Access to development and production infrastructure, leading to data breaches, service disruption, and full system compromise.
    • Ability to modify application logic, workflows, and data.