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Mitigation Strategies Analysis for cachethq/cachet

Mitigation Strategy: Strict Role-Based Access Control (RBAC) and Authentication (Cachet-Specific)

Description:

  1. Identify Roles: Define clear roles within your organization for interacting with Cachet (e.g., "Incident Responder," "Metrics Viewer," "Subscriber Manager," "Administrator").
  2. Least Privilege: Assign the minimum necessary permissions to each role using Cachet's built-in role system. A "Metrics Viewer" should only have read-only access to metrics.
  3. Cachet User Management: Use Cachet's user management interface to create user accounts and assign them to the defined roles. Do not make everyone an administrator.
  4. Regular Review: Within the Cachet admin panel, regularly review user accounts and their assigned roles. Remove or adjust permissions as needed.
  5. Strong Passwords (Cachet Config): Enforce strong password policies through Cachet's configuration settings (e.g., .env file or database settings, depending on Cachet version). Set minimum length and complexity requirements.
  6. 2FA/MFA (Cachet Feature): Enable two-factor authentication for all accounts, especially administrative ones, using Cachet's built-in 2FA support. This is a configuration option within Cachet.

  • Threats Mitigated:

    • Unauthorized Access to Sensitive Data (High Severity): Prevents unauthorized users from viewing or modifying incident data, metrics, or subscriber information within Cachet.
    • Account Takeover (High Severity): Makes it significantly harder for attackers to gain control of Cachet user accounts.
    • Insider Threats (Medium Severity): Limits the damage a malicious insider can do within the Cachet application.

  • Impact:

    • Unauthorized Access: Risk significantly reduced. Access is limited to authorized personnel with appropriate permissions within Cachet.
    • Account Takeover: Risk drastically reduced, especially with 2FA enabled within Cachet.
    • Insider Threats: Impact contained; damage limited to the scope of the compromised user's permissions within Cachet.

  • Currently Implemented:

    • Basic user roles (Admin, Manager, Team Member) are defined and used within Cachet.
    • Strong password enforcement is enabled in Cachet's configuration.
    • 2FA is enabled for all administrator accounts within Cachet.

  • Missing Implementation:

    • More granular roles are not yet defined within Cachet.
    • 2FA is not enforced for all non-administrative accounts within Cachet.
    • Regular review of user roles within Cachet is not a formal process.

Mitigation Strategy: API Key Management (Cachet-Specific)

Description:

  1. Key Generation (Cachet UI): Generate unique API keys for each application or service using Cachet's built-in API key management features.
  2. Least Privilege (API - Cachet Permissions): Assign the minimum required permissions to each API key within Cachet's interface. A key for reporting metrics should only have write access to metrics, not other data.
  3. Rotation (Cachet UI): Implement a process for regularly rotating API keys. This involves generating new keys within Cachet and deactivating old ones.
  4. Monitoring (Cachet Logs): Monitor Cachet's logs for the usage of the API keys.

  • Threats Mitigated:

    • Unauthorized API Access (High Severity): Prevents unauthorized applications from accessing the Cachet API using stolen or guessed keys.
    • API Abuse (Medium Severity): Limits the impact of malicious or compromised API clients by restricting their permissions within Cachet.
    • Data Exfiltration via API (High Severity): Limits data extraction if a key is compromised due to Cachet's permission restrictions.

  • Impact:

    • Unauthorized API Access: Risk significantly reduced by requiring valid, scoped API keys managed within Cachet.
    • API Abuse: Impact contained; malicious clients are limited by Cachet's key permissions.
    • Data Exfiltration: Data loss is limited by Cachet's key permissions.

  • Currently Implemented:

    • API keys are used for external integrations, generated within Cachet.

  • Missing Implementation:

    • Formal API key rotation process (using Cachet's features) is not in place.
    • API key permissions within Cachet are not granular enough (some keys have broader access than needed).

Mitigation Strategy: Secure Configuration (Cachet-Specific)

Description:

  1. Production Mode: Ensure Cachet is running in production mode (APP_DEBUG=false in Cachet's .env file). This is a Cachet-specific setting.
  2. Database Security (Cachet Config):
    • Use a strong, unique password for the database user, configured within Cachet's configuration files.
  3. Disable Unused Features (Cachet Settings): Disable any Cachet features that are not being used (e.g., specific notification providers) through Cachet's configuration options.
  4. Audit Log Review (Cachet UI): Regularly review Cachet's built-in audit logs (accessible through the admin panel) to monitor for suspicious activity.

  • Threats Mitigated:

    • Information Disclosure (Medium Severity): Prevents sensitive information from being exposed due to Cachet's debug mode being enabled.
    • Database Compromise (High Severity): Reduces the risk of unauthorized access to the database using the credentials stored in Cachet's configuration.
    • Unauthorized Actions (Medium Severity): Detect unauthorized actions by reviewing Cachet's audit logs.

  • Impact:

    • Information Disclosure: Risk significantly reduced by disabling Cachet's debug mode.
    • Database Compromise: Risk reduced by using a strong database password configured within Cachet.
    • Unauthorized Actions: Improved detection through Cachet's audit log review.

  • Currently Implemented:

    • Cachet is running in production mode.
    • The database user has a strong password configured in Cachet.

  • Missing Implementation:

    • Unused notification providers are not disabled within Cachet's configuration.
    • Regular review of Cachet's audit logs is not performed.

Mitigation Strategy: Input Validation and Output Encoding (Theme/Component Level - Cachet Code)

Description:

  1. Identify Input Points (Cachet Code): Identify all points within Cachet's codebase (including custom themes or components) where user-provided data is used.
  2. Validation (Cachet Code): Validate all user input within Cachet's PHP code against expected data types, formats, and lengths.
  3. Output Encoding (Cachet/Twig): Use appropriate output encoding (e.g., HTML escaping) when displaying user-provided data within Cachet's templates (Twig). Leverage Twig's auto-escaping features ({{ variable|e }} or {{ variable|escape }}).
  4. Context-Specific Encoding (Cachet/Twig): Use the correct encoding function for the specific context within Cachet's Twig templates (e.g., HTML attribute encoding, JavaScript encoding).
  5. Testing (Cachet Code): Thoroughly test Cachet's code and templates for XSS vulnerabilities.

  • Threats Mitigated:

    • Cross-Site Scripting (XSS) (High Severity): Prevents attackers from injecting malicious scripts into the Cachet status page through vulnerabilities in Cachet's code or templates.

  • Impact:

    • XSS: Risk significantly reduced by proper input validation and output encoding within Cachet's codebase.

  • Currently Implemented:

    • The default Cachet theme uses Twig's auto-escaping features.

  • Missing Implementation:

    • A custom component added to Cachet recently does not properly validate or encode user input within its PHP code.
    • No automated XSS testing is performed specifically on Cachet's code.

Mitigation Strategy: Controlled Communication and Verification for Incident Updates (Cachet Features)

Description:

  1. Designated Communicators (Cachet Users): Limit the number of individuals authorized to post and update incidents by managing user roles and permissions within Cachet.
  2. Audit Log Review (Cachet UI): Regularly review Cachet's built-in audit logs (accessible through the admin panel) to monitor for unauthorized or suspicious activity related to incident updates. This is a Cachet-specific feature.

  • Threats Mitigated:

    • Misinformation/Disinformation (Medium Severity): Reduces the risk of inaccurate information being published by limiting who can post within Cachet.
    • Unauthorized Disclosure (Medium Severity): Prevents sensitive information disclosure by restricting access within Cachet.
    • Unauthorized Actions (Medium Severity): Detect unauthorized actions by reviewing Cachet's audit logs.

  • Impact:

    • Misinformation: Risk reduced by limiting access to create/update incidents within Cachet.
    • Unauthorized Disclosure: Risk reduced by restricting access within Cachet.
    • Unauthorized Actions: Improved detection through Cachet's audit log review.

  • Currently Implemented:

    • Only a small team has access to create and update incidents within Cachet.

  • Missing Implementation:

    • Regular review of Cachet's audit logs is not performed.