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attack-tree.md

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Attack Tree Analysis for mesonbuild/meson

Objective: Compromise application built with Meson by exploiting Meson-specific vulnerabilities.

Attack Tree Visualization

Attack Tree: Compromise Application via Meson (High-Risk Focus) └───[OR]─ Exploit Vulnerabilities in Meson Build Scripts (meson.build) [CRITICAL NODE] │ └───[OR]─ Code Injection in meson.build [CRITICAL NODE] │ │ └───[OR]─ Command Injection via run_command or similar functions [CRITICAL NODE] │ │ │ └───[AND]─ Control over input parameters to run_command │ │ │ │ └───[OR]─ Malicious dependency provides crafted input [HIGH-RISK PATH] │ │ │ │ └───[OR]─ Vulnerable configuration file parsed by meson.build [HIGH-RISK PATH] │ │ │ │ └───[OR]─ User-controlled environment variables influence script execution [HIGH-RISK PATH] │ └───[OR]─ Logic Errors in meson.build leading to insecure build [CRITICAL NODE] │ │ └───[OR]─ Incorrect compiler flags set (e.g., disabling security features like ASLR, stack canaries) [CRITICAL NODE] │ │ │ └───[AND]─ Vulnerable meson.build logic based on external input or conditions │ │ │ │ └───[OR]─ Malicious dependency influences build flags [HIGH-RISK PATH] │ │ │ │ └───[OR]─ Crafted environment variables manipulate build flags [HIGH-RISK PATH] └───[OR]─ Exploit Vulnerabilities in Meson Itself (Meson Software) [CRITICAL NODE] │ └───[OR]─ Logic vulnerabilities in Meson dependency resolution or build orchestration [CRITICAL NODE] │ │ └───[OR]─ Dependency confusion attacks via Meson's dependency handling [HIGH-RISK PATH] [CRITICAL NODE] └───[OR]─ Exploit Meson Plugins/Modules (if used) [CRITICAL NODE] │ └───[OR]─ Malicious Meson plugins designed for exploitation [HIGH-RISK PATH] │ │ └───[OR]─ Backdoored plugins distributed through unofficial channels [HIGH-RISK PATH] └───[OR]─ Supply Chain Attacks Targeting Meson Dependencies [CRITICAL NODE]

Attack Tree Path: Exploit Vulnerabilities in Meson Build Scripts (meson.build) [CRITICAL NODE]

  • Attack Vector: Attackers target vulnerabilities within the meson.build scripts themselves, which control the entire build process. Successful exploitation here grants significant control.
  • Focus Areas:
    • Code Injection in meson.build [CRITICAL NODE]: Injecting malicious code directly into meson.build to be executed during the build.
      • Command Injection via run_command or similar functions [CRITICAL NODE]: Exploiting functions that execute shell commands to inject and run arbitrary commands.
        • Malicious dependency provides crafted input [HIGH-RISK PATH]: A compromised or attacker-controlled dependency provides malicious input that is used unsafely in run_command, leading to command injection.
        • Vulnerable configuration file parsed by meson.build [HIGH-RISK PATH]: meson.build parses a configuration file that contains malicious commands or input that, when used in run_command, results in command injection.
        • User-controlled environment variables influence script execution [HIGH-RISK PATH]: meson.build uses environment variables in run_command without proper sanitization, allowing an attacker to control command execution via environment variables.
    • Logic Errors in meson.build leading to insecure build [CRITICAL NODE]: Exploiting logical flaws in the script to manipulate the build process in a way that weakens security.
      • Incorrect compiler flags set (e.g., disabling security features like ASLR, stack canaries) [CRITICAL NODE]: Manipulating the meson.build logic to disable important compiler security flags, resulting in a less secure application.
        • Malicious dependency influences build flags [HIGH-RISK PATH]: A malicious dependency provides information or configuration that causes meson.build to set insecure compiler flags.
        • Crafted environment variables manipulate build flags [HIGH-RISK PATH]: Environment variables are used in meson.build logic to control compiler flags, allowing an attacker to manipulate them and disable security features.

Attack Tree Path: Exploit Vulnerabilities in Meson Itself (Meson Software) [CRITICAL NODE]

  • Attack Vector: Targeting vulnerabilities within the Meson build system software itself (parser, interpreter, dependency resolution logic). Exploiting Meson directly can have widespread impact.
  • Focus Areas:
    • Logic vulnerabilities in Meson dependency resolution or build orchestration [CRITICAL NODE]: Exploiting flaws in how Meson handles dependencies or orchestrates the build process.
      • Dependency confusion attacks via Meson's dependency handling [HIGH-RISK PATH] [CRITICAL NODE]: Leveraging Meson's dependency resolution to trick it into downloading and using a malicious dependency instead of a legitimate one.

Attack Tree Path: Exploit Meson Plugins/Modules (if used) [CRITICAL NODE]

  • Attack Vector: If the application uses Meson plugins, these become an additional attack surface. Vulnerabilities in plugins or malicious plugins can compromise the build.
  • Focus Areas:
    • Malicious Meson plugins designed for exploitation [HIGH-RISK PATH]: Attackers create and distribute plugins specifically designed to be malicious.
      • Backdoored plugins distributed through unofficial channels [HIGH-RISK PATH]: Malicious plugins with backdoors are distributed through unofficial or less secure channels, hoping developers will unknowingly use them.

Attack Tree Path: Supply Chain Attacks Targeting Meson Dependencies [CRITICAL NODE]

  • Attack Vector: Targeting the broader supply chain of Meson, including its own dependencies and distribution channels. Compromising Meson's supply chain can have a cascading effect.
  • Focus Areas:
    • Compromise of Meson's own dependencies [CRITICAL NODE]: Exploiting vulnerabilities in the Python packages or other libraries that Meson itself relies upon.
    • Compromise of Meson distribution channels [CRITICAL NODE]: Compromising the channels used to distribute Meson software, allowing attackers to distribute backdoored versions of Meson.