Attack Surface Analysis for spectreconsole/spectre.console

Attack Surface: Prompt Injection/Manipulation

Description: Attackers inject malicious input into Spectre.Console prompts (TextPrompt, SelectionPrompt, etc.) to alter the prompt's behavior, display, or validation, potentially leading to unintended actions or information disclosure.
- Spectre.Console Contribution: Spectre.Console's rich prompting features provide a direct interface for user input, making it a primary target for injection attacks if not properly secured. The library's flexibility in constructing prompts increases the potential for misuse.
- Example: An attacker provides input containing ANSI escape sequences to a TextPrompt that is used to build a confirmation message: AnsiConsole.Prompt(new TextPrompt<string>($"Are you sure you want to delete {userInput}}?")). The attacker's input might be: file1\e[2J\e[H\e[31mWARNING: System Compromised!\e[0m. This would clear the screen, move the cursor to the home position, and display a red warning message, potentially scaring the user.
- Impact:
  - Information Disclosure (revealing sensitive data through manipulated prompts).
  - Denial of Service (rendering the console unusable).
  - Indirect Command Injection (tricking users into executing dangerous commands).
  - Visual Spoofing (misleading the user about the application's state).
- Risk Severity: High
- Mitigation Strategies:
  - Input Validation: Implement strict whitelists for allowed characters and lengths in all prompt inputs.
  - Escaping/Encoding: Use appropriate escaping functions (preferably built-in Spectre.Console methods if available) to neutralize special characters and ANSI escape sequences before incorporating user input into prompts.
  - Context-Aware Sanitization: Tailor sanitization to the specific prompt type and context.
  - Parameterized Prompts: Avoid direct string concatenation; use formatted strings or parameterized prompts where possible.

Attack Surface: ANSI Escape Sequence Injection

Description: Attackers inject arbitrary ANSI escape sequences into any Spectre.Console output (not just prompts) to manipulate the terminal's display, potentially leading to various adverse effects.
- Spectre.Console Contribution: Spectre.Console heavily relies on ANSI escape sequences for styling and control. Any user-controlled data rendered using Spectre.Console components is a potential vector for this attack.
- Example: An attacker provides a username containing escape sequences that, when displayed in a table, overwrite other parts of the table or inject a hidden message. For instance, a username like user1\e[1A\e[2KMalicious Content might move the cursor up one line and erase the entire line, replacing it with "Malicious Content".
- Impact:
  - Terminal Manipulation (changing colors, cursor position, etc.).
  - Denial of Service (rendering the terminal unusable).
  - Information Disclosure (overwriting or revealing hidden data).
  - Visual Spoofing (misrepresenting information).
- Risk Severity: Critical
- Mitigation Strategies:
  - Robust Sanitization: Implement a comprehensive sanitization mechanism to remove or escape all ANSI escape sequences from user-supplied data before rendering it with any Spectre.Console component. This is the most crucial mitigation.
  - Leverage Built-in Sanitization: Use any built-in Spectre.Console functions designed for safe rendering of potentially unsafe text.
  - Whitelist Allowed Sequences (if feasible): If possible, define a whitelist of permitted escape sequences (e.g., basic color codes) and reject everything else.
  - Regular Expressions (with extreme caution): If using regular expressions, ensure they are thoroughly tested and reviewed to prevent bypasses. Prefer built-in library functions.

Attack Surface: Dependency Vulnerabilities (Spectre.Console)

Description: Spectre.Console itself, or its dependencies, might contain vulnerabilities that could be exploited.
- Spectre.Console Contribution: This is a general dependency issue, but Spectre.Console, as a library, introduces its own code and dependencies, which could have vulnerabilities.
- Example: A hypothetical vulnerability in Spectre.Console's ANSI escape sequence parsing logic could allow an attacker to bypass sanitization and inject malicious code.
- Impact: Varies depending on the specific vulnerability (could range from denial of service to remote code execution, though RCE is less likely directly from a console UI library).
- Risk Severity: Varies (Potentially Critical, depending on the vulnerability)
- Mitigation Strategies:
  - Keep Updated: Regularly update Spectre.Console to the latest version.
  - Monitor for Vulnerabilities: Subscribe to security advisories or follow the project's repository.
  - Dependency Scanning: Use software composition analysis (SCA) tools to automatically detect vulnerable dependencies.