Skip to content

Latest commit

 

History

History
45 lines (40 loc) · 4.7 KB

mitigations.md

File metadata and controls

45 lines (40 loc) · 4.7 KB

Mitigation Strategies Analysis for vicc/chameleon

Mitigation Strategy: Utilize Chameleon's Auto-Escaping Features

Mitigation Strategy: Enforce Auto-Escaping and Context-Aware Escaping

  • Description:
    1. Verify Auto-Escaping is Enabled: Confirm that Chameleon's auto-escaping feature is enabled in the application's configuration. Check the Chameleon initialization code and settings.
    2. Understand Default Escaping Rules: Thoroughly understand Chameleon's default escaping mechanisms for different contexts (HTML, XML, JavaScript, CSS). Refer to the Chameleon documentation for details.
    3. Context-Specific Escaping Directives: Utilize Chameleon's context-specific escaping directives (e.g., structure, string, xml, js) explicitly in templates where necessary to ensure correct escaping for the intended output context.
    4. Template Code Review for Escaping: During template code reviews, specifically verify that escaping is correctly applied to all dynamic content based on its output context.
    5. Testing with Different Contexts: Test templates with various types of data and in different output contexts (e.g., HTML attributes, JavaScript strings) to ensure that escaping is effective in preventing XSS.
  • Threats Mitigated:
    • Cross-Site Scripting (XSS): (Severity: High) - Prevents injection of malicious scripts into the rendered output by automatically escaping potentially harmful characters using Chameleon's built-in mechanisms.
  • Impact:
    • XSS: High - Significantly reduces the risk of XSS by providing a built-in defense mechanism against common XSS vectors offered directly by Chameleon.
  • Currently Implemented:
    • Auto-escaping is enabled by default in the Chameleon configuration.
    • Developers are generally aware of auto-escaping, but explicit context-aware directives are not consistently used.
  • Missing Implementation:
    • Promote and enforce the use of context-specific escaping directives in templates to fully leverage Chameleon's capabilities.
    • Include escaping verification as a key part of template code reviews, specifically checking for correct Chameleon escaping usage.
    • Develop automated tests to specifically check the effectiveness of Chameleon's escaping in different contexts within the application.

Mitigation Strategy: Regularly Update Chameleon Library

Mitigation Strategy: Maintain Up-to-Date Chameleon Library

  • Description:
    1. Dependency Management: Use a dependency management tool (e.g., pip for Python) to manage the Chameleon library and its dependencies.
    2. Regular Update Checks: Periodically check for updates to the Chameleon library and its dependencies. Automate this process if possible using dependency scanning tools.
    3. Security Monitoring: Subscribe to security advisories and release notes for Chameleon to stay informed about potential vulnerabilities and security updates specific to Chameleon.
    4. Prompt Update Application: Establish a process for promptly applying security updates to the Chameleon library and other dependencies when new versions are released by the Chameleon project. Prioritize security updates for Chameleon.
    5. Testing After Updates: Thoroughly test the application after updating the Chameleon library to ensure compatibility and that the updates haven't introduced any regressions, especially in areas using Chameleon features.
  • Threats Mitigated:
    • All Known Chameleon Vulnerabilities: (Severity: Varies, can be High) - Addresses known vulnerabilities that might be present in older versions of the Chameleon library itself, including potential SSTI, XSS, or other security flaws within Chameleon's code.
  • Impact:
    • All Known Chameleon Vulnerabilities: High - Directly mitigates known vulnerabilities within Chameleon and reduces the risk of exploitation of these specific Chameleon flaws.
  • Currently Implemented:
    • Dependency management is in place using pip.
    • Updates are applied periodically, but not always promptly for security releases of Chameleon.
    • Security monitoring for Chameleon specifically is not actively performed.
  • Missing Implementation:
    • Automate dependency update checks and security vulnerability scanning specifically for the Chameleon library.
    • Establish a process for prioritizing and promptly applying security updates specifically to Chameleon.
    • Implement a more proactive approach to monitoring Chameleon security advisories and release notes from the Chameleon project.