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Attack Tree Analysis for tencent/mmkv

Objective: Compromise MMKV Data/Functionality [CN]

Attack Tree Visualization

                                      +-------------------------------------------------+
                                      |  Attacker's Goal: Compromise MMKV Data/Functionality | [CN]
                                      +-------------------------------------------------+
                                                       |
          +--------------------------------------------------------------------------------+
          |                                                |
+---------------------+                      +---------------------+
|  1. Data Exfiltration | [HR]                 |  2. Data Modification | [HR]
+---------------------+                      +---------------------+
          |                                                |
+---------+                                  +---------+
| 1.2     | [HR]                             | 2.2     | [HR]
|  Shared |                                  |  Shared |
|  MMKV   |                                  |  MMKV   |
|  Access |                                  |  Access |
+---------+                                  +---------+
          |                                                |
+---------+                                  +---------+
|1.2.2    | [HR]                             |2.2.2    | [HR]
|  Lack   |                                  |  Lack   |
|  of     |                                  |  of     |
|  Data   |                                  |  Data   |
|  En-    |                                  |  En-    |
|  cryption| [CN]                             |  cryption| [CN]
+---------+                                  +---------+
          |
+---------+
|1.2.2.1  | [HR]
|  No     |
|  MMKV   |
|  En-    |
|  cryption| [CN]
+---------+

Attack Tree Path: Attacker's Goal: Compromise MMKV Data/Functionality [CN]

  • Description: The ultimate objective of the attacker is to gain unauthorized access to, modify, or delete sensitive data stored within MMKV, or to cause a denial-of-service condition specific to the MMKV component.
  • Criticality: This is the root of the entire threat model and, by definition, a critical node.

Attack Tree Path: 1. Data Exfiltration [HR]

  • Description: The attacker aims to steal sensitive data stored in MMKV.
  • High Risk: This is a primary attack vector due to the potential for significant data breaches.

Attack Tree Path: 1.2 Shared MMKV Access [HR]

  • Description: The attacker exploits vulnerabilities related to how MMKV handles shared access between processes. This is a high-risk path because MMKV is designed for inter-process communication, and improper configuration can expose data.
  • High Risk: The combination of shared access and potential lack of encryption or access control makes this a highly exploitable path.

Attack Tree Path: 1.2.2 Lack of Data Encryption [HR] [CN]

  • Description: Sensitive data is stored in MMKV without encryption. This is a critical vulnerability because any access to the MMKV instance, regardless of the method, will expose the data.
  • High Risk: This is a common and easily exploitable vulnerability.
  • Criticality: This is a single point of failure. If data is unencrypted, any other security measures are significantly weakened.
  • Likelihood: High
  • Impact: High
  • Effort: Low
  • Skill Level: Novice
  • Detection Difficulty: Easy

Attack Tree Path: 1.2.2.1 No MMKV Encryption [HR] [CN]

  • Description: The application simply doesn't use MMKV's encryption features, leaving all data in plain text.
  • High Risk: This is the most severe and easily exploitable form of the "Lack of Data Encryption" vulnerability.
  • Criticality: This represents the worst-case scenario for data protection within MMKV.
  • Likelihood: High
  • Impact: High
  • Effort: Very Low
  • Skill Level: Novice
  • Detection Difficulty: Very Easy

Attack Tree Path: 2. Data Modification [HR]

  • Description: The attacker aims to alter sensitive data stored in MMKV without authorization.
  • High Risk: This is a primary attack vector, as unauthorized modification can be as damaging as data theft.

Attack Tree Path: 2.2 Shared MMKV Access [HR]

  • Description: Similar to 1.2, but the attacker's goal is to modify data. Exploits vulnerabilities related to how MMKV handles shared access between processes.
  • High Risk: The combination of shared access and potential lack of encryption or access control makes this a highly exploitable path.

Attack Tree Path: 2.2.2 Lack of Data Encryption [HR] [CN]

  • Description: Sensitive data is stored in MMKV without encryption, making it vulnerable to unauthorized modification if an attacker gains access.
  • High Risk: This is a common and easily exploitable vulnerability.
  • Criticality: This is a single point of failure. If data is unencrypted, any other security measures are significantly weakened.
  • Likelihood: High
  • Impact: High
  • Effort: Low
  • Skill Level: Novice
  • Detection Difficulty: Easy