mitigations.md

Mitigation Strategies Analysis for getgrav/grav

Mitigation Strategy: Keep Grav Core and Plugins Updated

• Description:
  1. Regularly check for updates: Log in to the Grav Admin Panel. Grav usually displays update notifications on the dashboard. Alternatively, use the Grav Package Manager (GPM) command-line tool (bin/gpm update).
  2. Review update details: Before applying updates, check the changelog or release notes for Grav core and each plugin being updated. Understand what changes are included, especially security fixes.
  3. Backup before updating: Always create a full backup of your Grav site (files and database if applicable) before applying updates. This allows for easy rollback in case of issues.
  4. Apply updates: Use the Grav Admin Panel's update functionality or the GPM command (bin/gpm update) to apply the updates.
  5. Test after updating: After updating, thoroughly test your website to ensure everything is working as expected and no new issues have been introduced.
  6. Subscribe to security announcements: Subscribe to Grav's official channels (website, forums, social media) to receive timely security advisories and update notifications.
• List of Threats Mitigated:
  • Exploitation of Known Vulnerabilities (High Severity): Outdated Grav core or plugins often contain publicly known vulnerabilities that attackers can exploit.
  • Data Breaches (High Severity): Vulnerabilities in Grav core or plugins can be exploited to access sensitive data within Grav.
  • Website Defacement (Medium Severity): Exploitable vulnerabilities can allow attackers to modify website content within Grav.
  • Malware Injection (High Severity): Attackers can inject malware into the website through Grav vulnerabilities.
• Impact: High Reduction for all listed threats. Regularly updating Grav core and plugins is fundamental to address known Grav-specific vulnerabilities.
• Currently Implemented: Partially implemented. Grav provides update notifications in the Admin Panel, and GPM facilitates updates. However, consistent and timely application of updates by users is crucial and might be missing.
• Missing Implementation: Proactive monitoring for Grav updates and a defined schedule for applying them might be missing. Automated update application (where feasible and after thorough testing in a staging environment) could be considered for future implementation, but requires careful planning and testing.

Mitigation Strategy: Utilize Grav Package Manager (GPM) for Updates

• Description:
  1. Access GPM: Use the command-line interface (CLI) of your server and navigate to your Grav installation directory.
  2. Run update command: Execute the command bin/gpm update. GPM will check for updates for Grav core and all installed plugins and themes.
  3. Review update list: GPM will display a list of available updates. Review this list to understand what Grav components are being updated.
  4. Confirm update: Confirm the update process when prompted by GPM.
  5. Wait for completion: Allow GPM to download and install the Grav updates.
  6. Clear cache: After updating, clear Grav's cache (via Admin Panel or by deleting the cache folder) to ensure the updated Grav code is used.
  7. Test website: Thoroughly test the website after updating to verify Grav functionality.
• List of Threats Mitigated:
  • Exploitation of Known Vulnerabilities (High Severity): GPM ensures you are using the latest Grav versions, mitigating known vulnerabilities addressed in Grav updates.
  • Inconsistent Update Process (Medium Severity): Using GPM provides a standardized and reliable way to update Grav components, reducing the risk of manual errors during Grav updates.
• Impact: High Reduction for exploitation of known vulnerabilities, Medium Reduction for inconsistent update process. GPM streamlines and secures the Grav update process.
• Currently Implemented: Partially implemented. GPM is available and functional in Grav. Developers can use it. However, its consistent usage for all Grav updates might be missing.
• Missing Implementation: Enforcing GPM usage as the primary Grav update method within development workflows and documentation. Training developers and administrators on using GPM effectively.

Mitigation Strategy: Regularly Audit Installed Plugins

• Description:
  1. List installed plugins: Periodically (e.g., monthly or quarterly) review the list of plugins installed in your Grav application. This can be done via the Admin Panel or by listing directories in user/plugins/.
  2. Assess plugin necessity: For each plugin, evaluate if it is still actively used and necessary for the Grav website's functionality.
  3. Check plugin maintenance: For each plugin, check its last update date and developer activity on the Grav Plugin Directory or the plugin's repository. Identify Grav plugins that are outdated or no longer actively maintained.
  4. Consider alternatives: If a Grav plugin is outdated or unmaintained, explore if there are alternative Grav plugins that provide similar functionality and are actively maintained.
  5. Remove unnecessary/unmaintained plugins: Uninstall and remove any Grav plugins that are no longer needed or are unmaintained. Use the Admin Panel or GPM (bin/gpm uninstall <plugin-name>) to remove plugins.
  6. Document plugin rationale: For Grav plugins that are kept, document their purpose and why they are necessary for the application.
• List of Threats Mitigated:
  • Vulnerabilities in Abandoned Grav Plugins (High Severity): Unmaintained Grav plugins are unlikely to receive security updates, making them potential targets for exploitation within Grav.
  • Increased Attack Surface (Medium Severity): Every installed Grav plugin, even if unused, adds to the overall attack surface of the Grav application.
• Impact: High Reduction for vulnerabilities in abandoned Grav plugins, Medium Reduction for increased attack surface. Reduces the risk associated with outdated and unnecessary Grav plugin code.
• Currently Implemented: Likely missing. Grav plugin auditing is usually a manual process and not inherently enforced in Grav.
• Missing Implementation: Implementing a Grav plugin audit schedule and process. Potentially integrating Grav plugin audit reminders into development workflows or using scripts to identify outdated Grav plugins (though this requires careful consideration of false positives).

Mitigation Strategy: Source Plugins from Trusted Sources

• Description:
  1. Prioritize official Grav Plugin Directory: When searching for Grav plugins, primarily use the official Grav Plugin Directory (https://getgrav.org/plugins). Plugins listed here are generally reviewed and considered more trustworthy within the Grav ecosystem.
  2. Check developer reputation: For Grav plugins not in the official directory, research the plugin developer's reputation and history within the Grav community. Look for established Grav developers or organizations with a good track record in the Grav space.
  3. Review plugin code (if possible): If the Grav plugin source code is available (e.g., on GitHub), review it for any obvious malicious code or security flaws before installation within Grav.
  4. Check plugin reviews and ratings: Look for user reviews and ratings of the Grav plugin in the Grav Plugin Directory or other relevant Grav forums. Pay attention to feedback regarding security or stability within Grav.
  5. Avoid unknown sources: Exercise extreme caution when installing Grav plugins from unknown or unverified sources, such as personal websites or untrusted repositories outside the Grav ecosystem.
• List of Threats Mitigated:
  • Malicious Grav Plugins (High Severity): Grav plugins from untrusted sources may contain malicious code designed to compromise the Grav website.
  • Backdoors and Malware (High Severity): Malicious Grav plugins can introduce backdoors into the Grav system.
  • Supply Chain Attacks (Medium Severity): Compromised or malicious Grav plugins can be used as a vector for supply chain attacks within the Grav application.
• Impact: High Reduction for malicious Grav plugins and backdoors, Medium Reduction for supply chain attacks within Grav. Significantly reduces the risk of installing intentionally harmful code within Grav.
• Currently Implemented: Partially implemented. Grav's Plugin Directory encourages sourcing from a central Grav location. However, user awareness and adherence to this practice are crucial and might be missing.
• Missing Implementation: Explicitly documenting Grav plugin sourcing guidelines and incorporating them into development best practices. Potentially implementing internal Grav plugin vetting processes for plugins not from the official directory.

Mitigation Strategy: Monitor Grav Security Advisories

• Description:
  1. Identify official Grav channels: Determine the official channels where Grav publishes security advisories. This includes the Grav website (https://getgrav.org/blog or a dedicated security section), Grav forums, and potentially social media channels related to Grav.
  2. Subscribe to notifications: Subscribe to email newsletters, RSS feeds, or follow social media accounts to receive notifications about new Grav security advisories.
  3. Regularly check channels: Periodically (e.g., weekly) check the official Grav channels for new security advisories, even if you haven't received direct notifications.
  4. Analyze advisories: When a Grav security advisory is published, carefully read and understand the details of the vulnerability, affected Grav versions, and recommended mitigation steps specific to Grav.
  5. Implement recommended fixes: Promptly implement the recommended fixes or updates outlined in the Grav security advisory. This may involve updating Grav core, specific plugins, or applying Grav configuration changes.
  6. Document actions taken: Document the actions taken to address each Grav security advisory, including dates, Grav versions updated, and Grav configuration changes made.
• List of Threats Mitigated:
  • Exploitation of Newly Discovered Grav Vulnerabilities (High Severity): Grav security advisories provide early warnings about newly discovered vulnerabilities in Grav, allowing for proactive mitigation before widespread exploitation within Grav.
  • Zero-Day Attacks (Medium Severity): While not directly preventing zero-day attacks, monitoring Grav advisories helps in quickly responding to and mitigating newly disclosed Grav vulnerabilities, some of which might be actively exploited in Grav.
• Impact: High Reduction for exploitation of newly discovered Grav vulnerabilities, Medium Reduction for zero-day attacks (in terms of response time within Grav). Enables timely response to emerging Grav-specific threats.
• Currently Implemented: Likely missing. Monitoring Grav security advisories is a proactive Grav security practice that requires conscious effort and is not automatically implemented.
• Missing Implementation: Establishing a process for monitoring Grav security advisories. Assigning responsibility for monitoring and acting upon Grav advisories. Integrating Grav advisory monitoring into security incident response plans.

Mitigation Strategy: Implement a Plugin Security Review Process

• Description:
  1. Define review criteria: Establish clear security review criteria for Grav plugins, especially for custom or less common Grav plugins. This should include checks for common vulnerabilities relevant to Grav plugins (e.g., SQL injection if plugins interact with databases, XSS, CSRF within the Grav context), secure coding practices within the Grav framework, and data handling within Grav.
  2. Code review for custom plugins: For custom-developed Grav plugins, mandate a thorough code review by a security-conscious developer or security expert before deployment within Grav.
  3. Static analysis (optional): Consider using static analysis tools to automatically scan Grav plugin code for potential vulnerabilities specific to Grav plugin development.
  4. Dynamic testing (optional): For complex Grav plugins, consider dynamic testing or penetration testing to identify runtime vulnerabilities within the Grav environment.
  5. Document review findings: Document the findings of each Grav plugin security review, including identified vulnerabilities, remediation steps, and approval status for Grav deployment.
  6. Establish approval workflow: Implement an approval workflow for Grav plugin deployment, requiring security review sign-off before a Grav plugin can be deployed to production.
• List of Threats Mitigated:
  • Vulnerabilities in Custom Grav Plugins (High Severity): Custom Grav plugins, if not developed with Grav security in mind, can introduce significant vulnerabilities into the Grav application.
  • Security Flaws in Less Common Grav Plugins (Medium Severity): Less widely used Grav plugins may not have undergone the same level of scrutiny as popular Grav plugins, potentially containing undiscovered vulnerabilities within Grav.
  • Accidental Introduction of Vulnerabilities (Medium Severity): Even well-intentioned developers can inadvertently introduce security flaws into Grav plugins. Review processes help catch these errors within the Grav context.
• Impact: High Reduction for vulnerabilities in custom Grav plugins, Medium Reduction for security flaws in less common Grav plugins and accidental vulnerabilities within Grav. Proactively identifies and mitigates Grav plugin vulnerabilities before deployment.
• Currently Implemented: Likely missing, especially for smaller projects. Security review processes for Grav plugins are often more common in larger organizations with dedicated security teams.
• Missing Implementation: Developing and implementing a Grav plugin security review process. Training developers on secure coding practices for Grav plugins. Integrating security review into the Grav plugin development lifecycle.

Mitigation Strategy: Secure Admin Panel Access - Strong Passwords for Grav Admin Accounts

• Description: 1. Password complexity requirements: Enforce strong password policies for all Grav admin accounts. This includes minimum length, use of uppercase and lowercase letters, numbers, and special characters within the Grav Admin Panel user management. 2. Password manager recommendation: Encourage or mandate the use of password managers to generate and store strong, unique passwords for Grav admin accounts. 3. Regular password changes: Consider implementing a policy for periodic password changes for Grav admin accounts (though this should be balanced with password complexity and 2FA). 4. Password strength testing (optional): Utilize password strength meters or tools during Grav admin password creation to guide users in choosing strong passwords within the Grav Admin Panel if available, or externally.
  • List of Threats Mitigated:
    • Brute-Force Attacks (High Severity): Weak Grav admin passwords are easily cracked through brute-force attacks, allowing attackers to gain unauthorized Grav admin access.
    • Dictionary Attacks (High Severity): Common or predictable Grav admin passwords are vulnerable to dictionary attacks.
    • Password Guessing (Medium Severity): Simple or easily guessable Grav admin passwords can be compromised through social engineering or simple guessing attempts.
  • Impact: High Reduction for brute-force and dictionary attacks against Grav admin accounts, Medium Reduction for password guessing of Grav admin accounts. Fundamental for preventing unauthorized access to the Grav Admin Panel.
  • Currently Implemented: Partially implemented. Grav itself doesn't enforce strong password policies by default, but users can choose strong passwords for Grav admin accounts.
  • Missing Implementation: Implementing enforced password complexity requirements for Grav admin accounts (potentially through a Grav plugin or custom code). Educating users about strong password practices specifically for Grav admin accounts.

Mitigation Strategy: Secure Admin Panel Access - Two-Factor Authentication (2FA) for Grav Admin Panel

• Description: 1. Choose a 2FA plugin: Select and install a suitable Two-Factor Authentication (2FA) plugin for Grav. Several plugins are available in the Grav Plugin Directory specifically for Admin Panel 2FA. 2. Configure 2FA plugin: Configure the chosen 2FA plugin according to its documentation. This typically involves selecting 2FA methods (e.g., TOTP, SMS, U2F) and setting up user enrollment within the Grav Admin Panel context. 3. Enable 2FA for all admin accounts: Enforce 2FA for all Grav admin accounts. Guide users through the Grav Admin Panel 2FA setup process. 4. Test 2FA functionality: Thoroughly test the Grav Admin Panel 2FA setup to ensure it is working correctly and users can successfully log in with 2FA enabled. 5. Provide recovery options: Establish backup and recovery options for Grav admin users who lose access to their 2FA devices (e.g., recovery codes within the Grav context).
  • List of Threats Mitigated:
    • Account Takeover (High Severity): 2FA significantly reduces the risk of Grav admin account takeover even if passwords are compromised.
    • Credential Stuffing Attacks (High Severity): 2FA makes credential stuffing attacks against Grav admin accounts much less effective.
  • Impact: High Reduction for Grav admin account takeover and credential stuffing attacks. Adds a critical layer of security beyond passwords for Grav Admin Panel access.
  • Currently Implemented: Likely missing. Grav Admin Panel 2FA is not enabled by default in Grav and requires plugin installation and configuration.
  • Missing Implementation: Implementing and enforcing 2FA for all Grav admin accounts. Selecting and configuring a suitable Grav 2FA plugin. User education and support for Grav Admin Panel 2FA setup.

Mitigation Strategy: Secure Admin Panel Access - Rename Admin Panel URL (Security through Obscurity - use with caution) within Grav Configuration

• Description: 1. Choose a non-default admin path: Select a new, less predictable URL path for the Grav admin panel instead of the default /admin within Grav. 2. Configure Grav admin route: Modify Grav's configuration (usually in user/config/system.yaml) to change the admin panel route to the chosen path within Grav configuration. 3. Update documentation and bookmarks: Update any internal documentation or user bookmarks to reflect the new Grav admin panel URL. 4. Remember this is not a primary security measure: Understand that renaming the Grav admin URL is a form of "security through obscurity" and should not be relied upon as the sole Grav security measure. It should be used in conjunction with stronger Grav measures like strong passwords and 2FA.
  • List of Threats Mitigated:
    • Automated Attacks Targeting Default Grav Admin Paths (Low Severity): Renaming the Grav admin URL can deter automated bots and scripts that specifically target the default /admin path of Grav.
    • Casual or Script Kiddie Attacks (Low Severity): May deter less sophisticated attackers who rely on default Grav admin paths.
  • Impact: Low Reduction for automated and casual attacks against the Grav Admin Panel. Provides a minor deterrent but is not a strong Grav security measure on its own.
  • Currently Implemented: Potentially missing. Renaming the Grav admin URL is a Grav configuration option but not always implemented.
  • Missing Implementation: Considering renaming the Grav admin URL as an additional, minor Grav security measure. Documenting the new Grav admin URL clearly.

Mitigation Strategy: Disable Unnecessary Features and Plugins

• Description:
  1. Review enabled Grav features: Identify Grav core features that are enabled but not actively used by your application.
  2. Disable unused core features: Disable any unnecessary core Grav features in Grav's configuration (user/config/system.yaml).
  3. Audit installed plugins: As described in strategy #3, regularly audit installed Grav plugins.
  4. Disable or uninstall unused plugins: Disable or uninstall any Grav plugins that are not essential for your application's functionality. Disabling is often preferable to uninstalling if there's a chance the plugin might be needed again in the future within Grav.
  5. Regularly review enabled Grav features and plugins: Periodically review the list of enabled Grav features and plugins to ensure that only necessary Grav components are active.
• List of Threats Mitigated:
  • Increased Attack Surface (Medium Severity): Every enabled Grav feature and plugin adds to the overall attack surface of the Grav application, potentially introducing new Grav-specific vulnerabilities.
  • Performance Issues (Low Severity): Unnecessary Grav features and plugins can sometimes impact Grav website performance.
• Impact: Medium Reduction for increased Grav attack surface, Low Reduction for performance issues within Grav. Reduces the potential for Grav vulnerabilities by minimizing the Grav codebase.
• Currently Implemented: Likely missing. Disabling unnecessary Grav features and plugins is a proactive Grav security measure that requires conscious effort and is not automatically enforced.
• Missing Implementation: Implementing a process for reviewing and disabling unnecessary Grav features and plugins. Documenting the rationale for enabled Grav features and plugins.

Mitigation Strategy: Secure Grav Configuration Files

• Description:
  1. Restrict access: Ensure that Grav configuration files (e.g., user/config/system.yaml, Grav plugin configuration files) are not publicly accessible via web requests. Web server configuration (e.g., .htaccess) should prevent direct access to these files.
  2. Set restrictive file permissions: As described in general file permission strategy, set restrictive file permissions for Grav configuration files (e.g., 600 or 640) to limit read access to only the web server user and potentially the system administrator.
  3. Avoid storing sensitive data directly: Avoid storing highly sensitive information (e.g., database passwords, API keys) directly in Grav configuration files if possible.
  4. Use environment variables or secure configuration management: Consider using environment variables or secure configuration management tools (e.g., HashiCorp Vault) to store and manage sensitive configuration data outside of Grav configuration files.
  5. Regularly review configuration files: Periodically review Grav configuration files to ensure they do not contain inadvertently exposed sensitive information or insecure Grav settings.
• List of Threats Mitigated:
  • Information Disclosure (High Severity): Publicly accessible or overly permissive Grav configuration files can expose sensitive information like database credentials, API keys, and internal Grav system details.
  • Privilege Escalation (Medium Severity): Exposed Grav configuration settings might reveal vulnerabilities or misconfigurations that could be exploited for privilege escalation within Grav.
• Impact: High Reduction for information disclosure of Grav configuration, Medium Reduction for privilege escalation within Grav. Protects sensitive Grav configuration data.
• Currently Implemented: Partially implemented. Grav's default setup attempts to protect configuration files, but misconfigurations or overly permissive server setups can still expose them.
• Missing Implementation: Verifying and enforcing restricted access to Grav configuration files. Implementing secure storage for sensitive Grav configuration data using environment variables or configuration management tools.

Mitigation Strategy: Restrict File Upload Types within Grav Configuration

• Description:
  1. Identify necessary file types: Determine the specific file types that are legitimately required for users to upload in your Grav application within the context of Grav's media handling or plugin uploads.
  2. Configure allowed file types in Grav: Configure Grav's media settings or plugin settings (if plugins handle uploads) to explicitly whitelist or blacklist file extensions. Only allow necessary file types within Grav's configuration.
  3. Blacklist executable and dangerous types: Specifically blacklist executable file types (e.g., .php, .exe, .sh, .bat, .js, .html, .htm, .phtml, .asp, .aspx, .cgi, .pl) and other potentially dangerous types (e.g., .svg - due to potential XSS) within Grav's upload restrictions.
  4. Enforce restrictions on both client-side and server-side: Implement file type restrictions on both the client-side (using JavaScript for user feedback) and, crucially, on the server-side (in Grav configuration or upload handling code) to prevent bypassing client-side checks within the Grav upload process.
  5. Regularly review allowed file types: Periodically review the list of allowed file types in Grav and adjust it as needed based on application requirements and Grav security considerations.
• List of Threats Mitigated:
  • Malicious File Upload (High Severity): Allowing unrestricted file uploads within Grav can enable attackers to upload and execute malicious files (e.g., PHP scripts, web shells) on the server via Grav's upload mechanisms.
  • Code Execution Vulnerabilities (High Severity): Uploaded malicious files via Grav can be used to execute arbitrary code on the server, leading to full system compromise through Grav.
  • Website Defacement (Medium Severity): Attackers can upload files via Grav to deface the website.
  • Cross-Site Scripting (XSS) via SVG (Medium Severity): Allowing SVG uploads via Grav without proper sanitization can lead to XSS vulnerabilities within Grav.
• Impact: High Reduction for malicious file upload and code execution vulnerabilities via Grav, Medium Reduction for website defacement and XSS via SVG within Grav. Prevents uploading of dangerous file types through Grav.
• Currently Implemented: Partially implemented. Grav provides some media settings for file types, but explicit and comprehensive restriction configuration might be missing.
• Missing Implementation: Configuring Grav to strictly restrict file upload types based on application needs. Implementing server-side file type validation within Grav's upload handling. Regularly reviewing and updating allowed file type lists in Grav.

Mitigation Strategy: Implement File Size Limits within Grav Configuration

• Description:
  1. Determine appropriate file size limits: Determine reasonable file size limits for uploads via Grav based on the expected file sizes and storage capacity.
  2. Configure file size limits in Grav: Configure file size limits in Grav's media settings or plugin settings (if plugins handle uploads).
  3. Enforce limits on both client-side and server-side: Implement file size limits on both the client-side (for user feedback) and, importantly, on the server-side (in Grav configuration or upload handling code) to prevent bypassing client-side checks within Grav's upload process.
  4. Test file size limits: Test the configured Grav file size limits to ensure they are working correctly and prevent uploads exceeding the limits via Grav.
  5. Regularly review file size limits: Periodically review Grav file size limits and adjust them as needed based on application requirements and resource considerations within Grav.
• List of Threats Mitigated:
  • Denial of Service (DoS) via Large File Uploads (Medium Severity): Unrestricted file uploads via Grav, especially large files, can consume server resources and lead to denial of service affecting the Grav application.
  • Storage Exhaustion (Medium Severity): Uncontrolled file uploads via Grav can lead to rapid storage exhaustion, impacting Grav website functionality.
• Impact: Medium Reduction for DoS via large file uploads and storage exhaustion related to Grav uploads. Prevents resource exhaustion through excessive Grav uploads.
• Currently Implemented: Partially implemented. Grav likely has default file size limits, but they might not be explicitly configured or sufficiently restrictive for specific application needs.
• Missing Implementation: Configuring explicit and appropriate file size limits in Grav. Implementing server-side file size validation within Grav's upload handling. Regularly reviewing and adjusting Grav file size limits.

Mitigation Strategy: File Validation and Sanitization within Grav

• Description:
  1. Implement server-side validation: Implement robust server-side validation of uploaded files after they are uploaded via Grav. This should go beyond just checking file extensions within Grav.
  2. Validate file headers and content types: Check file headers (magic numbers) and content types to verify that the file type matches the claimed extension and is actually what it purports to be within Grav's validation process.
  3. Sanitize file content (where applicable): For certain file types (e.g., images, HTML) uploaded via Grav, implement sanitization processes to remove potentially malicious code or embedded scripts. Use libraries or functions specifically designed for sanitizing these file types within Grav or Grav plugins.
  4. Antivirus scanning (optional but recommended): Consider integrating antivirus scanning of uploaded files via Grav using a virus scanning library or service within the Grav upload workflow. This adds an extra layer of protection against malware uploads through Grav.
  5. Error handling and logging: Implement proper error handling for file validation and sanitization failures within Grav. Log any validation failures for security monitoring and incident response related to Grav uploads.
• List of Threats Mitigated:
  • Malicious File Upload (High Severity): File validation and sanitization within Grav help detect and prevent the upload of malicious files disguised as legitimate file types through Grav.
  • Code Execution Vulnerabilities (High Severity): Sanitization within Grav can remove malicious code embedded within seemingly safe file types uploaded via Grav, preventing code execution.
  • Cross-Site Scripting (XSS) via File Uploads (Medium Severity): Sanitization within Grav can help prevent XSS attacks through files uploaded via Grav (e.g., in SVG or HTML files).
  • Malware Infection (High Severity): Antivirus scanning within Grav's upload process can detect and block malware uploads through Grav.
• Impact: High Reduction for malicious file upload and code execution vulnerabilities via Grav, Medium Reduction for XSS via file uploads and malware infection (depending on antivirus effectiveness within Grav). Significantly enhances Grav upload security.
• Currently Implemented: Likely missing or minimally implemented. Basic file type checking might be present in Grav, but comprehensive validation and sanitization are often not default Grav features and require custom implementation or plugins.
• Missing Implementation: Implementing server-side file validation and sanitization processes within Grav. Integrating antivirus scanning for files uploaded via Grav. Developing error handling and logging for validation failures within Grav's upload process.

Mitigation Strategy: Utilize Grav's Media Processing and Security Features

• Description:
  1. Review Grav media settings: Thoroughly review Grav's media configuration settings in user/config/media.yaml and in the Admin Panel.
  2. Configure image processing: Utilize Grav's built-in image processing capabilities for resizing, optimizing, and potentially sanitizing uploaded images within Grav.
  3. Understand media security options: Explore Grav's media security options, such as access control lists (ACLs) for media files (if available through Grav plugins or custom code).
  4. Leverage Grav's media API (if applicable): If developing custom Grav plugins or extensions that handle media, utilize Grav's media API to ensure consistent and secure media handling within the Grav ecosystem.
  5. Stay updated on Grav media security best practices: Keep informed about best practices for securing media files in Grav by consulting Grav documentation and community resources.
• List of Threats Mitigated:
  • Image-Based Vulnerabilities (Medium Severity): Utilizing Grav image processing can help mitigate vulnerabilities related to image files within Grav (e.g., image parsing vulnerabilities, embedded malware).
  • Unauthorized Media Access (Medium Severity): Grav media security features (like ACLs) can help control access to media files within Grav and prevent unauthorized access.
  • Performance Issues (Low Severity): Optimized Grav image processing can improve Grav website performance.
• Impact: Medium Reduction for image-based vulnerabilities and unauthorized media access within Grav, Low Reduction for performance issues within Grav. Leverages built-in Grav features for enhanced media security.
• Currently Implemented: Partially implemented. Grav provides media processing features, but their full utilization and configuration for security might be missing. Grav media security options might require plugin implementation or custom code.
• Missing Implementation: Reviewing and configuring Grav's media settings for security. Implementing Grav media access control if required. Ensuring proper utilization of Grav's media API in custom code.