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Attack Tree Analysis for v2ray/v2ray-core

Objective: To gain unauthorized access to, disrupt, or exfiltrate data from the application or its users by exploiting vulnerabilities in the v2ray-core implementation or configuration.

Attack Tree Visualization

                                     Compromise Application via v2ray-core
                                                    |
        -------------------------------------------------------------------------
        |                                               |
  **Exploit Configuration Weaknesses**          Exploit Implementation Vulnerabilities
        |                                               |
  ---------------------                   -----------------------------------
  |                   |                   |                 |
**Weak Auth**      **Insecure Defaults**     DoS Attacks
  |                   |                   |                 |
  -----           -----------           -----------       |
  |     |         |         |           |       |         |
**Brute**  Hardcoded  **Misconfigured**  **Missing**  **Targeted**  **Resource**
**Force** **Creds**     **Protocols**     **Updates**  **Attacks**   **Exhaustion**
 [HR]     [HR]         [HR]              [HR]                      [HR]
  ||      ||           ||                ||                        ===
  ===     ===          ===               ===                        |

Attack Tree Path: Exploit Configuration Weaknesses

  • Exploit Configuration Weaknesses: This branch focuses on vulnerabilities arising from improper or insecure configuration of v2ray-core.

    • Weak Authentication [Critical Node]: This is a fundamental security weakness where the authentication mechanisms used to protect v2ray are easily bypassed.

      • Brute Force [Critical Node, HR]:
        • Description: Attackers repeatedly try different username/password combinations until they find a valid one.
        • Likelihood: Medium
        • Impact: High (Unauthorized access)
        • Effort: Low
        • Skill Level: Low
        • Detection Difficulty: Medium
      • Hardcoded Credentials [Critical Node, HR]:
        • Description: Default or hardcoded credentials are left unchanged in the configuration, providing a direct entry point for attackers.
        • Likelihood: Low (But high impact if present)
        • Impact: High (Immediate, full access)
        • Effort: Low
        • Skill Level: Low
        • Detection Difficulty: Low

    • Insecure Defaults [Critical Node]: This refers to using the default configuration settings of v2ray-core without making necessary security adjustments.

      • Misconfigured Protocols [Critical Node, HR]:
        • Description: Using insecure protocols (e.g., weak ciphers, no encryption) or misconfiguring secure protocols, exposing traffic to interception or manipulation.
        • Likelihood: Medium
        • Impact: Medium to High
        • Effort: Low to Medium
        • Skill Level: Low to Medium
        • Detection Difficulty: Medium
      • Missing Updates [Critical Node, HR]:
        • Description: Failing to apply security updates to v2ray-core, leaving the system vulnerable to known exploits.
        • Likelihood: Medium
        • Impact: High
        • Effort: Low to Medium
        • Skill Level: Low to Medium
        • Detection Difficulty: Medium

Attack Tree Path: Exploit Implementation Vulnerabilities

  • Exploit Implementation Vulnerabilities:

    • DoS Attacks:
      • Targeted Attacks [Critical Node]:
        • Description: Sending specially crafted packets to crash or hang the v2ray process.
        • Likelihood: Medium
        • Impact: Medium (Service disruption)
        • Effort: Medium to High
        • Skill Level: Medium to High
        • Detection Difficulty: Medium
      • Resource Exhaustion [Critical Node, HR]:
        • Description: Flooding the v2ray server with connections or traffic to exhaust resources (CPU, memory, bandwidth).
        • Likelihood: High
        • Impact: Medium (Service disruption)
        • Effort: Low
        • Skill Level: Low
        • Detection Difficulty: Medium