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Attack Tree Analysis for scalessec/toast-swift

Objective: Compromise application using Toast-Swift by exploiting vulnerabilities within the library or its usage.

Attack Tree Visualization

Root: Compromise Application via Toast-Swift [CRITICAL NODE]
    ├───[OR]─ Manipulate Toast Display for Malicious Purposes [CRITICAL NODE] [HIGH-RISK PATH]
    │   ├───[AND]─ Control Toast Content [CRITICAL NODE] [HIGH-RISK PATH]
    │   │   ├───[OR]─ Inject Malicious URL in Toast Message [CRITICAL NODE] [HIGH-RISK PATH]
    │   │   │   ├───[Leaf]─ Phishing Attack via Toast Link [HIGH-RISK PATH]
    │   │   │   └───[Leaf]─ Drive-by Download via Toast Link
    │   │   └───[OR]─ Inject Deceptive Text in Toast Message [HIGH-RISK PATH]
    │   │       ├───[Leaf]─ Social Engineering via False Information [HIGH-RISK PATH]
    │   │       └───[Leaf]─ UI Spoofing/Confusion via Misleading Text [HIGH-RISK PATH]
    │   └───[AND]─ Manipulate Toast Presentation
    │       └───[OR]─ Denial of Service (DoS) via Toast Flooding [HIGH-RISK PATH]
    │           ├───[Leaf]─ Exhaust UI Resources by Displaying Excessive Toasts [HIGH-RISK PATH]
    │           └───[Leaf]─ Degrade Application Performance by Overwhelming UI Thread [HIGH-RISK PATH]

Attack Tree Path: Root: Compromise Application via Toast-Swift [CRITICAL NODE]

Description: The ultimate goal of the attacker is to compromise the application using the Toast-Swift library. This node is critical as it represents the overall objective of the threat model.

Attack Tree Path: Manipulate Toast Display for Malicious Purposes [CRITICAL NODE] [HIGH-RISK PATH]

Description: Attackers aim to leverage the toast display functionality for malicious actions. This path is high-risk because it encompasses several easily exploitable vulnerabilities related to toast content and presentation.

Attack Vectors:

  • Controlling Toast Content (leading to phishing, drive-by downloads, social engineering, UI spoofing).
  • Manipulating Toast Presentation (leading to Denial of Service).

Attack Tree Path: Control Toast Content [CRITICAL NODE] [HIGH-RISK PATH]

Description: Attackers attempt to influence the text or links displayed within the toast message. This node is critical and part of a high-risk path because it directly enables content-based attacks.

Attack Vectors:

  • Inject Malicious URL in Toast Message [CRITICAL NODE] [HIGH-RISK PATH]:
    • Description: Injecting malicious URLs into toast messages if the application displays unsanitized data.
    • Leads to: Phishing Attacks and Drive-by Downloads.
    • Likelihood: Medium
    • Impact: Major
    • Effort: Low
    • Skill Level: Low
    • Detection Difficulty: Medium
    • Mitigation: Strict input sanitization and validation of URLs displayed in toasts.
  • Inject Deceptive Text in Toast Message [HIGH-RISK PATH]:
    • Description: Injecting misleading or false text into toast messages if the application displays unsanitized data.
    • Leads to: Social Engineering and UI Spoofing/Confusion.
    • Likelihood: Medium
    • Impact: Moderate
    • Effort: Low
    • Skill Level: Low
    • Detection Difficulty: Medium-Hard
    • Mitigation: Strict input sanitization and validation of text displayed in toasts, clear and consistent UI design.

Attack Tree Path: Inject Malicious URL in Toast Message [CRITICAL NODE] [HIGH-RISK PATH]

Description: This node represents the vulnerability of displaying unsanitized URLs in toast messages. It is critical and part of a high-risk path as it directly enables phishing and drive-by download attacks.

Attack Vectors:

  • Phishing Attack via Toast Link [HIGH-RISK PATH]:
    • Description: Toast contains a link to a phishing website.
    • Likelihood: Medium
    • Impact: Major
    • Effort: Low
    • Skill Level: Low
    • Detection Difficulty: Medium
    • Mitigation: Input sanitization, URL whitelisting, user education.
  • Drive-by Download via Toast Link:
    • Description: Toast contains a link that initiates a drive-by download of malware.
    • Likelihood: Low-Medium
    • Impact: Major
    • Effort: Low-Medium
    • Skill Level: Low-Medium
    • Detection Difficulty: Medium
    • Mitigation: Input sanitization, URL whitelisting, user education, robust app sandboxing.

Attack Tree Path: Inject Deceptive Text in Toast Message [HIGH-RISK PATH]

Description: This node represents the vulnerability of displaying unsanitized text in toast messages. It is part of a high-risk path as it enables social engineering and UI spoofing attacks.

Attack Vectors:

  • Social Engineering via False Information [HIGH-RISK PATH]:
    • Description: Toast displays false information to manipulate user behavior.
    • Likelihood: Medium
    • Impact: Moderate
    • Effort: Low
    • Skill Level: Low
    • Detection Difficulty: Hard
    • Mitigation: Data integrity, contextual clarity, rate limiting of toasts.
  • UI Spoofing/Confusion via Misleading Text [HIGH-RISK PATH]:
    • Description: Toast displays text mimicking system messages to confuse users.
    • Likelihood: Medium-Hard
    • Impact: Moderate
    • Effort: Low
    • Skill Level: Low
    • Detection Difficulty: Medium-Hard
    • Mitigation: Consistent UI design, limited toast customization, user awareness.

Attack Tree Path: Denial of Service (DoS) via Toast Flooding [HIGH-RISK PATH]

Description: Attackers flood the application with toasts to cause a Denial of Service. This path is high-risk due to the ease of execution and potential impact on application usability.

Attack Vectors:

  • Exhaust UI Resources by Displaying Excessive Toasts [HIGH-RISK PATH]:
    • Description: Flooding the UI with toasts to consume excessive resources and cause crashes.
    • Likelihood: Medium
    • Impact: Moderate
    • Effort: Low
    • Skill Level: Low
    • Detection Difficulty: Easy
    • Mitigation: Rate limiting toast display, toast queue management, resource monitoring.
  • Degrade Application Performance by Overwhelming UI Thread [HIGH-RISK PATH]:
    • Description: Flooding the UI thread with toast display operations to cause lag and unresponsiveness.
    • Likelihood: Medium
    • Impact: Moderate
    • Effort: Low
    • Skill Level: Low
    • Detection Difficulty: Easy
    • Mitigation: Asynchronous toast display, UI thread optimization, rate limiting.