Skip to content

Latest commit

 

History

History
65 lines (54 loc) · 5.81 KB

threat-modeling.md

File metadata and controls

65 lines (54 loc) · 5.81 KB

Threat Model Analysis for blankj/androidutilcode

Threat: Unintended Data Leakage through Logging

  • Description: An attacker could gain access to sensitive information by examining application logs. Developers might unintentionally log sensitive data (user credentials, API keys, personal information) using LogUtils. Attackers could access these logs through ADB, system log access (if permissions allow), or by analyzing crash reports if verbose logging is enabled in production.
  • Impact: Information Disclosure, Privacy Violation, Potential Account Compromise if credentials are leaked.
  • Affected Component: LogUtils module, specifically logging functions like LogUtils.e, LogUtils.d, LogUtils.v, etc.
  • Risk Severity: High (when sensitive data is logged and verbose logging is enabled in production or accessible in debug builds).
  • Mitigation Strategies:
    • Disable verbose and debug logging in release builds.
    • Carefully review all logging statements and remove logging of sensitive data.
    • Implement logging level control based on build type (debug vs. release).
    • Use ProGuard/R8 to obfuscate code and potentially log messages.
    • Consider using secure logging solutions that offer data masking or filtering.

Threat: Insecure Data Storage via SPStaticUtils

  • Description: An attacker with physical access to the device or a malicious application with storage permissions could access data stored in SharedPreferences via SPStaticUtils. If highly sensitive data is stored unencrypted using SPStaticUtils, it becomes easily accessible.
  • Impact: Information Disclosure, Privacy Violation, Potential Account Compromise if credentials or highly sensitive user data are exposed.
  • Affected Component: SPStaticUtils module, specifically functions for storing and retrieving data from SharedPreferences like SPStaticUtils.put, SPStaticUtils.get.
  • Risk Severity: High (when highly sensitive data is stored unencrypted in SharedPreferences).
  • Mitigation Strategies:
    • Avoid storing highly sensitive data in SharedPreferences.
    • Use Android Keystore System for storing cryptographic keys and sensitive data.
    • Employ strong encryption (e.g., AES encryption) before storing sensitive data in SharedPreferences.
    • Educate developers about the security limitations of SharedPreferences.

Threat: Shell Command Injection via ShellUtils

  • Description: An attacker could execute arbitrary shell commands on the device if the application uses ShellUtils with untrusted input. If user-provided or external data is directly passed to ShellUtils.execCmd without proper sanitization, an attacker could inject malicious shell commands to gain control of the device, access data, or perform other malicious actions.
  • Impact: Code Execution, Privilege Escalation, Data Breach, Device Compromise, Denial of Service.
  • Affected Component: ShellUtils module, specifically ShellUtils.execCmd function.
  • Risk Severity: Critical (if ShellUtils is used with untrusted input).
  • Mitigation Strategies:
    • Avoid using ShellUtils entirely if possible. Seek alternative Android APIs or libraries.
    • Never use ShellUtils with user-provided or untrusted input.
    • Implement strict input validation and sanitization if ShellUtils is absolutely necessary.
    • Use parameterized commands or safer alternatives to shell execution if available.
    • Conduct thorough security reviews if ShellUtils is used.

Threat: Vulnerabilities in androidutilcode Library Itself

  • Description: An attacker could exploit known or zero-day vulnerabilities present in the androidutilcode library code. If vulnerabilities are discovered in the library, applications using it become vulnerable. Attackers could leverage these vulnerabilities to compromise the application or the device.
  • Impact: Code Execution, Data Breach, Privilege Escalation, Device Compromise, Denial of Service (depending on the vulnerability).
  • Affected Component: The entire androidutilcode library.
  • Risk Severity: Critical (if a critical vulnerability exists in the library).
  • Mitigation Strategies:
    • Regularly update androidutilcode to the latest version.
    • Monitor security advisories and vulnerability databases for androidutilcode.
    • Use dependency scanning tools to detect known vulnerabilities.
    • Evaluate the library's development activity and community support.
    • Consider alternative libraries if critical vulnerabilities are found and not promptly patched.

Threat: Transitive Dependencies Vulnerabilities

  • Description: An attacker could exploit vulnerabilities in the transitive dependencies of androidutilcode. If androidutilcode relies on other libraries that have vulnerabilities, these vulnerabilities indirectly affect applications using androidutilcode.
  • Impact: Code Execution, Data Breach, Privilege Escalation, Device Compromise, Denial of Service (depending on the vulnerability in transitive dependencies).
  • Affected Component: Transitive dependencies of androidutilcode.
  • Risk Severity: Critical (if a critical vulnerability exists in transitive dependencies).
  • Mitigation Strategies:
    • Use dependency management tools (Gradle) to manage and analyze dependencies.
    • Regularly update dependencies, including transitive ones.
    • Use dependency scanning tools to identify vulnerabilities in both direct and transitive dependencies.
    • Investigate and address vulnerabilities reported by dependency scanning tools.