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Mitigation Strategies Analysis for phacility/phabricator

Mitigation Strategy: Enforce Strong Project-Based Access Control

  • Mitigation Strategy: Enforce Strong Project-Based Access Control
  • Description:
    1. Identify Projects: Clearly define project boundaries within Phabricator based on teams, applications, or functional areas.
    2. Create Projects in Phabricator: For each identified project, create a corresponding Project within Phabricator.
    3. Define Policies: For each Phabricator Project, configure granular policies within Phabricator for different actions (view, edit, commit, merge, administer, etc.) on various Phabricator applications (Repositories, Maniphest, Differential, etc.).
    4. Assign Users to Projects: Add users to Phabricator Projects based on their required access level and the principle of least privilege, using Phabricator's user management features. Only grant access to projects necessary for their role within Phabricator.
    5. Regularly Review Project Memberships and Policies: Schedule periodic reviews (e.g., monthly or quarterly) of project memberships and policy configurations within Phabricator to ensure they are up-to-date and still appropriate. Remove users who no longer require access and adjust policies as needed directly in Phabricator.
    6. Audit Logs: Regularly audit Phabricator's built-in policy change logs to detect any unauthorized or suspicious modifications to access controls within Phabricator.
  • Threats Mitigated:
    • Unauthorized Access to Code/Data (High Severity): Prevents users from accessing sensitive code repositories, tasks, or documents within Phabricator they are not authorized to see.
    • Data Breaches due to Insider Threats (Medium Severity): Reduces the risk of malicious or accidental data leaks within Phabricator by limiting access to sensitive information to only authorized personnel through Phabricator's access controls.
    • Privilege Escalation (Medium Severity): Makes it harder for users to gain unauthorized access to higher privileges or sensitive areas within Phabricator using Phabricator's policy system.
  • Impact:
    • Unauthorized Access to Code/Data: High Risk Reduction
    • Data Breaches due to Insider Threats: Medium Risk Reduction
    • Privilege Escalation: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if Phabricator Projects are actively used to manage access.
    • To be determined: Review existing Phabricator Project policies to assess granularity and enforcement.
    • To be determined: Check if there is a process for regular review of project memberships and policies within Phabricator.
    • Location: Phabricator Admin Panel -> Projects and Policies sections.
  • Missing Implementation:
    • To be determined: If Project-based access control is not consistently applied across all Phabricator applications.
    • To be determined: If policy granularity is lacking within Phabricator (e.g., relying too much on "All Users" or broad project access).
    • To be determined: If regular reviews and audits of project memberships and policies are not in place within Phabricator.

Mitigation Strategy: Leverage Phabricator's Policy System Granularly

  • Mitigation Strategy: Leverage Phabricator's Policy System Granularly
  • Description:
    1. Identify Sensitive Resources: Determine which repositories, Maniphest projects, Differential revisions, or other Phabricator resources require stricter access control within Phabricator.
    2. Move Beyond Basic Policies: For sensitive resources within Phabricator, avoid using overly broad policies like "Allow All Users" or "Allow Project Members" if more specific control is needed.
    3. Utilize Specific Policy Rules: Explore and implement more granular policy rules offered by Phabricator's policy system. This can include:
      • User Roles/Groups (Phabricator Groups): Create Phabricator User Groups representing different roles (e.g., "Security Team", "Managers") and use these in Phabricator policies.
      • Custom Conditions (Phabricator API): For advanced scenarios, leverage Phabricator's API to create custom policy conditions based on specific criteria applicable within Phabricator's context.
    4. Implement Approval Processes (Phabricator Herald/Workflows): For critical actions within Phabricator (e.g., merging to production branches, accessing highly sensitive data), implement policies requiring explicit approvals from designated users or groups using Phabricator's Herald or custom workflows.
    5. Test Policy Configurations: Thoroughly test all policy configurations within Phabricator to ensure they are working as intended and do not inadvertently block legitimate access or grant unauthorized access.
  • Threats Mitigated:
    • Unauthorized Access to Sensitive Data (High Severity): Prevents unauthorized viewing or modification of highly confidential information within Phabricator.
    • Accidental Data Modification/Deletion (Medium Severity): Reduces the risk of accidental changes to critical data within Phabricator by limiting write access to authorized users through Phabricator's policies.
    • Compliance Violations (Medium Severity): Helps meet compliance requirements by demonstrating granular control over access to sensitive data within Phabricator using Phabricator's policy features.
  • Impact:
    • Unauthorized Access to Sensitive Data: High Risk Reduction
    • Accidental Data Modification/Deletion: Medium Risk Reduction
    • Compliance Violations: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if granular policies are used for sensitive repositories or projects within Phabricator beyond basic project membership.
    • To be determined: Investigate if user groups or custom policy rules are utilized within Phabricator's policy system.
    • To be determined: Determine if approval processes are in place for critical actions within Phabricator.
    • Location: Phabricator Admin Panel -> Policies section, specific application policy settings (e.g., Repository settings).
  • Missing Implementation:
    • To be determined: If granular policies are not consistently applied to all sensitive resources within Phabricator.
    • To be determined: If reliance on overly permissive policies for sensitive data within Phabricator exists.
    • To be determined: If approval processes are missing for critical operations within Phabricator.

Mitigation Strategy: Implement Multi-Factor Authentication (MFA) in Phabricator

  • Mitigation Strategy: Implement Multi-Factor Authentication (MFA) in Phabricator
  • Description:
    1. Choose MFA Method Supported by Phabricator: Select an appropriate MFA method supported by Phabricator's authentication settings (e.g., Time-Based One-Time Passwords (TOTP)).
    2. Enable MFA in Phabricator Configuration: Configure Phabricator to enable MFA through its built-in authentication settings.
    3. Enforce MFA for All Users (or High-Risk Users) in Phabricator: Ideally, enforce MFA for all Phabricator users via Phabricator's settings. At a minimum, enforce it for administrators and users with access to sensitive repositories or configurations within Phabricator.
    4. User Enrollment via Phabricator Interface: Guide users through the MFA enrollment process using Phabricator's user interface for MFA setup, providing clear instructions and support.
    5. Regularly Review MFA Usage in Phabricator: Monitor MFA usage within Phabricator and ensure that all required users have enrolled and are actively using MFA. Address any issues with enrollment or usage promptly within Phabricator.
  • Threats Mitigated:
    • Account Takeover due to Password Compromise (High Severity): Significantly reduces the risk of attackers gaining access to Phabricator user accounts even if passwords are stolen through phishing, breaches, or weak passwords.
    • Unauthorized Access from Stolen Credentials (High Severity): Prevents unauthorized access to Phabricator if user credentials are compromised.
  • Impact:
    • Account Takeover due to Password Compromise: High Risk Reduction
    • Unauthorized Access from Stolen Credentials: High Risk Reduction
  • Currently Implemented:
    • To be determined: Check if MFA is enabled in Phabricator's authentication settings.
    • To be determined: Determine which MFA methods are supported and used within Phabricator.
    • To be determined: Verify if MFA is enforced for all users or specific user groups within Phabricator.
    • Location: Phabricator Admin Panel -> Authentication Settings.
  • Missing Implementation:
    • To be determined: If MFA is not enabled at all in Phabricator.
    • To be determined: If MFA is enabled but not enforced for all users, especially administrators and high-risk users within Phabricator.
    • To be determined: If MFA enrollment is not actively promoted and supported for all Phabricator users.

Mitigation Strategy: Regularly Review and Audit User Permissions within Phabricator

  • Mitigation Strategy: Regularly Review and Audit User Permissions within Phabricator
  • Description:
    1. Establish Review Schedule: Define a regular schedule for reviewing user permissions within Phabricator (e.g., quarterly, bi-annually).
    2. Identify Review Scope: Determine the scope of the review, including all Phabricator users, specific projects, or user groups within Phabricator.
    3. Generate User Permission Reports (Phabricator API): Utilize Phabricator's API or scripting to generate reports listing users and their assigned permissions within Phabricator projects and applications.
    4. Review User Accounts and Permissions within Phabricator: Manually review the reports, focusing on:
      • Inactive Accounts (Phabricator User Management): Identify and disable or remove accounts that are no longer actively used within Phabricator.
      • Excessive Privileges (Phabricator Policies): Identify users with permissions within Phabricator that are no longer necessary for their current roles or responsibilities.
      • Role Changes: Update permissions within Phabricator to reflect any changes in user roles or responsibilities.
    5. Implement Permission Adjustments in Phabricator: Based on the review, adjust user permissions within Phabricator, removing unnecessary access and ensuring adherence to the principle of least privilege using Phabricator's user and policy management features.
    6. Document Review Process: Document the review process, findings, and any changes made to Phabricator permissions. Maintain an audit trail of permission changes within Phabricator.
  • Threats Mitigated:
    • Privilege Creep (Medium Severity): Prevents users from accumulating unnecessary permissions within Phabricator over time, reducing the potential impact of account compromise within Phabricator.
    • Unauthorized Access due to Stale Accounts (Medium Severity): Eliminates the risk of unauthorized access through inactive Phabricator accounts that are not properly managed.
    • Insider Threats (Medium Severity): Reduces the potential for insider threats within Phabricator by ensuring users only have the necessary permissions within Phabricator.
  • Impact:
    • Privilege Creep: Medium Risk Reduction
    • Unauthorized Access due to Stale Accounts: Medium Risk Reduction
    • Insider Threats: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if a process for regular user permission review is in place within Phabricator.
    • To be determined: Determine the frequency and scope of existing reviews within Phabricator.
    • To be determined: Verify if there is documentation of the review process and findings related to Phabricator permissions.
    • Location: Manual review process, potentially using Phabricator API for reporting user permissions.
  • Missing Implementation:
    • To be determined: If regular user permission reviews are not conducted within Phabricator.
    • To be determined: If the review process is not documented or consistently followed for Phabricator permissions.
    • To be determined: If there is no mechanism to identify and manage inactive accounts or excessive privileges within Phabricator.

Mitigation Strategy: Secure Authentication Provider Integration with Phabricator

  • Mitigation Strategy: Secure Authentication Provider Integration with Phabricator
  • Description:
    1. Choose Secure Providers Compatible with Phabricator: If using external authentication providers (LDAP, Active Directory, OAuth), select providers with strong security features and a good security track record that are compatible with Phabricator's authentication mechanisms.
    2. Harden Provider Configuration (General Provider Security): Securely configure the chosen authentication providers themselves (as described in the previous broader list).
    3. Secure Integration within Phabricator Configuration: Secure the integration between Phabricator and the authentication provider specifically within Phabricator's authentication settings:
      • Use Secure Protocols: Ensure Phabricator is configured to use secure protocols (e.g., LDAPS, OAuth 2.0 with HTTPS) for communication with the authentication provider.
      • Minimize Information Sharing (Phabricator Configuration): Configure Phabricator to only share the minimum necessary user information with the authentication provider during integration.
      • Regularly Update Integrations (Phabricator Updates): Keep Phabricator's authentication provider integrations updated to the latest versions and apply security patches provided by Phabricator updates.
    4. Monitor Provider Logs (General Provider Security): Regularly monitor logs from the authentication providers for suspicious activity (as described in the previous broader list).
  • Threats Mitigated:
    • Compromise of Authentication System Impacting Phabricator (High Severity): Prevents attackers from exploiting vulnerabilities in the authentication provider to gain unauthorized access to Phabricator.
    • Credential Stuffing/Brute-Force Attacks Against Authentication Used by Phabricator (Medium Severity): Reduces the effectiveness of credential stuffing or brute-force attacks against authentication providers used by Phabricator.
    • Data Breaches in Authentication Provider Impacting Phabricator (Medium Severity): Mitigates the impact of data breaches in the authentication provider on Phabricator access.
  • Impact:
    • Compromise of Authentication System Impacting Phabricator: High Risk Reduction
    • Credential Stuffing/Brute-Force Attacks Against Authentication Used by Phabricator: Medium Risk Reduction
    • Data Breaches in Authentication Provider Impacting Phabricator: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Identify which authentication providers are used with Phabricator (if any).
    • To be determined: Assess the security configuration of the authentication providers (general provider security).
    • To be determined: Review the security of the integration configuration within Phabricator.
    • To be determined: Check if logs from authentication providers are monitored for security events (general provider security).
    • Location: Authentication provider infrastructure and configuration, Phabricator Admin Panel -> Authentication Settings.
  • Missing Implementation:
    • To be determined: If authentication providers are not securely configured and hardened (general provider security).
    • To be determined: If the integration configuration within Phabricator is not secure.
    • To be determined: If logs from authentication providers are not monitored for security events (general provider security).

Mitigation Strategy: Maintain Phabricator Up-to-Date

  • Mitigation Strategy: Maintain Phabricator Up-to-Date
  • Description:
    1. Monitor Phabricator Release Notes and Security Advisories: Establish a process for regularly monitoring official Phabricator release notes and security advisories published by the Phacility team or community channels.
    2. Apply Security Patches and Upgrades Promptly: When security patches or new versions of Phabricator are released, plan and apply these updates to your Phabricator instance as quickly as possible to address known vulnerabilities.
    3. Subscribe to Phabricator Security Channels: Subscribe to Phabricator security mailing lists, RSS feeds, or community forums to stay informed about security updates and potential vulnerabilities affecting Phabricator.
    4. Test Updates in a Staging Environment: Before applying updates to the production Phabricator instance, thoroughly test them in a staging or development environment to identify and resolve any compatibility issues or unexpected behavior.
  • Threats Mitigated:
    • Exploitation of Known Phabricator Vulnerabilities (High Severity): Prevents attackers from exploiting publicly known security vulnerabilities in outdated versions of Phabricator.
    • Data Breaches due to Unpatched Vulnerabilities (High Severity): Reduces the risk of data breaches resulting from unpatched security flaws in Phabricator.
  • Impact:
    • Exploitation of Known Phabricator Vulnerabilities: High Risk Reduction
    • Data Breaches due to Unpatched Vulnerabilities: High Risk Reduction
  • Currently Implemented:
    • To be determined: Check if there is a process for monitoring Phabricator release notes and security advisories.
    • To be determined: Determine the current Phabricator version and patching schedule.
    • To be determined: Verify if a staging environment is used for testing updates before production deployment.
    • Location: Operational procedures, Phabricator instance version information (Admin Panel).
  • Missing Implementation:
    • To be determined: If there is no process for regularly monitoring Phabricator security updates.
    • To be determined: If Phabricator is running on an outdated and unpatched version.
    • To be determined: If updates are applied directly to production without testing in a staging environment.

Mitigation Strategy: Regularly Scan Phabricator Instance for Vulnerabilities

  • Mitigation Strategy: Regularly Scan Phabricator Instance for Vulnerabilities
  • Description:
    1. Utilize Vulnerability Scanning Tools: Employ vulnerability scanning tools specifically designed for web applications to regularly scan your Phabricator instance for potential security weaknesses.
    2. Focus Scans on Web Application Vulnerabilities: Configure scanning tools to focus on identifying common web application vulnerabilities relevant to Phabricator, such as OWASP Top 10 vulnerabilities, configuration issues specific to Phabricator, and outdated components within the Phabricator installation.
    3. Automated and Manual Scans: Implement a combination of automated vulnerability scans on a regular schedule (e.g., weekly or monthly) and periodic manual penetration testing by security experts to identify a wider range of vulnerabilities.
    4. Remediate Identified Vulnerabilities: Establish a process for promptly reviewing and remediating any vulnerabilities identified by scanning tools or penetration testing. Prioritize remediation based on the severity and exploitability of the vulnerabilities.
    5. Retest After Remediation: After applying fixes or patches for identified vulnerabilities, re-run vulnerability scans to verify that the issues have been effectively resolved.
  • Threats Mitigated:
    • Exploitation of Web Application Vulnerabilities in Phabricator (High Severity): Prevents attackers from exploiting vulnerabilities like XSS, SQL Injection, or CSRF present in the Phabricator application code or configuration.
    • Data Breaches due to Exploitable Vulnerabilities (High Severity): Reduces the risk of data breaches resulting from exploitable vulnerabilities in Phabricator.
  • Impact:
    • Exploitation of Web Application Vulnerabilities in Phabricator: High Risk Reduction
    • Data Breaches due to Exploitable Vulnerabilities: High Risk Reduction
  • Currently Implemented:
    • To be determined: Check if vulnerability scanning is performed on the Phabricator instance.
    • To be determined: Determine the frequency and scope of vulnerability scans.
    • To be determined: Verify if there is a process for remediating identified vulnerabilities.
    • Location: Security scanning tools and processes, vulnerability management workflow.
  • Missing Implementation:
    • To be determined: If vulnerability scanning is not regularly performed on the Phabricator instance.
    • To be determined: If identified vulnerabilities are not promptly remediated and retested.
    • To be determined: If penetration testing is not conducted periodically to identify more complex vulnerabilities.

Mitigation Strategy: Secure Phabricator Extensions and Customizations

  • Mitigation Strategy: Secure Phabricator Extensions and Customizations
  • Description:
    1. Thoroughly Vet Extensions Before Deployment: Before deploying any Phabricator extensions or customizations, conduct a thorough security review and vetting process.
    2. Code Review for Security Vulnerabilities: Review the source code of extensions and customizations for potential security vulnerabilities, such as insecure coding practices, backdoors, or logic flaws. Ensure code adheres to secure coding principles relevant to Phabricator's development environment.
    3. Security Testing of Extensions: Perform security testing specifically on extensions and customizations, including vulnerability scanning and penetration testing, to identify potential security weaknesses they might introduce.
    4. Keep Extensions Updated and Patched: Establish a process for monitoring updates and security patches for any deployed Phabricator extensions. Apply updates promptly to address known vulnerabilities in extensions.
    5. Minimize Use of Third-Party Extensions: Minimize the use of third-party Phabricator extensions unless absolutely necessary. Prioritize extensions from trusted and reputable sources with a good security track record.
  • Threats Mitigated:
    • Vulnerabilities Introduced by Extensions (High Severity): Prevents vulnerabilities in Phabricator extensions from being exploited by attackers.
    • Backdoors or Malicious Code in Extensions (High Severity): Reduces the risk of deploying extensions containing backdoors or malicious code that could compromise Phabricator security.
    • Compromise of Phabricator via Extension Vulnerabilities (High Severity): Prevents attackers from gaining unauthorized access to Phabricator or its data by exploiting vulnerabilities in extensions.
  • Impact:
    • Vulnerabilities Introduced by Extensions: High Risk Reduction
    • Backdoors or Malicious Code in Extensions: High Risk Reduction
    • Compromise of Phabricator via Extension Vulnerabilities: High Risk Reduction
  • Currently Implemented:
    • To be determined: Check if there is a process for vetting Phabricator extensions before deployment.
    • To be determined: Determine if code reviews and security testing are performed on extensions.
    • To be determined: Verify if there is a process for updating and patching extensions.
    • Location: Development and deployment processes for Phabricator extensions.
  • Missing Implementation:
    • To be determined: If Phabricator extensions are deployed without thorough security vetting.
    • To be determined: If code reviews and security testing are not performed on extensions.
    • To be determined: If there is no process for managing updates and security patches for extensions.

Mitigation Strategy: Review and Harden Phabricator Configuration Options

  • Mitigation Strategy: Review and Harden Phabricator Configuration Options
  • Description:
    1. Review Phabricator Configuration Settings: Carefully review all Phabricator configuration settings, especially those related to security, authentication, authorization, and data handling.
    2. Disable Unnecessary Features: Disable or restrict Phabricator features that are not essential for your organization's use case or that introduce unnecessary security risks if not properly configured.
    3. Secure Email Configuration: Pay close attention to Phabricator's email configuration settings. Ensure that email sending is configured securely to prevent email spoofing or other email-related attacks. Use secure email protocols (e.g., SMTP with TLS) and strong authentication if required.
    4. Secure File Upload Settings: Review and harden Phabricator's file upload settings. Implement restrictions on file types, file sizes, and locations where uploaded files are stored. Consider enabling malware scanning for uploaded files if supported by Phabricator or through integrations.
    5. Secure External Integrations: If Phabricator integrates with external systems (e.g., issue trackers, CI/CD pipelines), carefully review and secure these integrations. Use secure authentication methods, minimize data sharing, and regularly audit integration configurations.
  • Threats Mitigated:
    • Misconfiguration Vulnerabilities (Medium to High Severity): Prevents vulnerabilities arising from insecure or default Phabricator configuration settings.
    • Email Spoofing and Phishing (Medium Severity): Reduces the risk of email spoofing or phishing attacks originating from or related to Phabricator's email functionality.
    • Malicious File Uploads (Medium Severity): Mitigates the risk of users uploading malicious files to Phabricator that could compromise the system or other users.
    • Insecure External Integrations (Medium Severity): Prevents vulnerabilities in external integrations from being exploited to compromise Phabricator or connected systems.
  • Impact:
    • Misconfiguration Vulnerabilities: Medium to High Risk Reduction
    • Email Spoofing and Phishing: Medium Risk Reduction
    • Malicious File Uploads: Medium Risk Reduction
    • Insecure External Integrations: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if Phabricator configuration settings have been reviewed and hardened beyond default settings.
    • To be determined: Assess the security of email, file upload, and external integration configurations in Phabricator.
    • Location: Phabricator Admin Panel -> Configuration Settings.
  • Missing Implementation:
    • To be determined: If Phabricator configuration settings are still at default values or have not been thoroughly reviewed for security.
    • To be determined: If email, file upload, or external integration settings are not securely configured.
    • To be determined: If unnecessary features are enabled in Phabricator that increase the attack surface.

Mitigation Strategy: Implement Secure Session Management in Phabricator

  • Mitigation Strategy: Implement Secure Session Management in Phabricator
  • Description:
    1. Configure Session Timeouts in Phabricator: Configure appropriate session timeout values within Phabricator's session management settings. Shorter timeouts reduce the window of opportunity for session hijacking.
    2. Ensure Secure Session Cookies (HttpOnly, Secure flags): Verify that Phabricator is configured to use secure session cookies with the HttpOnly and Secure flags enabled. HttpOnly prevents client-side JavaScript access to cookies, mitigating XSS attacks. Secure ensures cookies are only transmitted over HTTPS.
    3. Consider Robust Session Storage: Evaluate Phabricator's session storage mechanism. If storing sessions in easily accessible locations (e.g., default file-based storage), consider switching to a more robust and secure session storage mechanism if supported by Phabricator or through configuration options (e.g., database-backed sessions).
    4. Regularly Review Session Management Configuration: Periodically review Phabricator's session management configuration to ensure it remains secure and aligned with security best practices.
  • Threats Mitigated:
    • Session Hijacking (High Severity): Reduces the risk of attackers hijacking user sessions to gain unauthorized access to Phabricator.
    • Cross-Site Scripting (XSS) related Session Theft (Medium Severity): Mitigates the risk of XSS attacks being used to steal session cookies and hijack user sessions.
    • Brute-Force Session Guessing (Low Severity): While less likely, robust session management can make brute-force session guessing more difficult.
  • Impact:
    • Session Hijacking: High Risk Reduction
    • Cross-Site Scripting (XSS) related Session Theft: Medium Risk Reduction
    • Brute-Force Session Guessing: Low Risk Reduction
  • Currently Implemented:
    • To be determined: Check Phabricator's session timeout configuration.
    • To be determined: Inspect session cookies to verify HttpOnly and Secure flags are set.
    • To be determined: Determine Phabricator's session storage mechanism.
    • Location: Phabricator Admin Panel -> Session Management or Security Settings, browser developer tools (for cookie inspection).
  • Missing Implementation:
    • To be determined: If session timeouts are too long or not configured.
    • To be determined: If session cookies lack HttpOnly or Secure flags.
    • To be determined: If session storage is insecure or using default, less robust mechanisms.

Mitigation Strategy: Encrypt Sensitive Data within Phabricator Context

  • Mitigation Strategy: Encrypt Sensitive Data within Phabricator Context
  • Description:
    1. Enable HTTPS for Phabricator Access: Ensure that HTTPS is enabled and enforced for all access to the Phabricator instance. This protects data in transit between users' browsers and the Phabricator server. Configure your web server and Phabricator to redirect all HTTP requests to HTTPS.
    2. Consider Database Encryption for Sensitive Data: If storing highly confidential information within Phabricator (e.g., sensitive project data, secrets in configuration), consider enabling database encryption for the Phabricator database. This encrypts data at rest within the database storage.
    3. Encrypt Phabricator Backups: Ensure that backups of the Phabricator database and file storage are also encrypted to protect data confidentiality in backups. Use strong encryption algorithms and securely manage encryption keys.
  • Threats Mitigated:
    • Data in Transit Interception (High Severity): HTTPS encryption prevents attackers from intercepting sensitive data transmitted between users and Phabricator.
    • Data at Rest Exposure in Database (High Severity if applicable): Database encryption protects sensitive data stored in the Phabricator database from unauthorized access if the database storage is compromised.
    • Data Exposure in Backups (High Severity if applicable): Backup encryption prevents sensitive data from being exposed if backups are stolen or accessed by unauthorized individuals.
  • Impact:
    • Data in Transit Interception: High Risk Reduction
    • Data at Rest Exposure in Database: High Risk Reduction (if implemented)
    • Data Exposure in Backups: High Risk Reduction (if implemented)
  • Currently Implemented:
    • To be determined: Verify if HTTPS is enabled and enforced for Phabricator access.
    • To be determined: Check if database encryption is enabled for the Phabricator database (if storing highly sensitive data).
    • To be determined: Determine if Phabricator backups are encrypted.
    • Location: Web server configuration (HTTPS), Database server configuration (encryption), Backup procedures.
  • Missing Implementation:
    • To be determined: If HTTPS is not enabled or enforced for Phabricator access.
    • To be determined: If database encryption is not implemented for sensitive data in the Phabricator database.
    • To be determined: If Phabricator backups are not encrypted.

Mitigation Strategy: Implement Input Validation and Output Encoding in Phabricator Development

  • Mitigation Strategy: Implement Input Validation and Output Encoding in Phabricator Development
  • Description:
    1. Input Validation on Server-Side (Phabricator Code): Within Phabricator's codebase (if developing custom features or extensions), implement robust server-side input validation for all user inputs received by Phabricator applications. Validate data type, format, length, and range to ensure inputs conform to expected values. Reject invalid inputs and provide informative error messages.
    2. Output Encoding (Phabricator Templating): When displaying user-generated content or data retrieved from databases within Phabricator web pages, use proper output encoding techniques provided by Phabricator's templating engine (e.g., Phabricator's javelin_render_tag or similar mechanisms). Encode outputs appropriately for the context (e.g., HTML encoding for display in HTML, URL encoding for URLs, JavaScript encoding for embedding in JavaScript).
    3. Educate Developers on Secure Coding Practices: Provide security awareness training to developers working on Phabricator customizations or extensions, emphasizing secure coding practices related to input validation and output encoding within the Phabricator development environment.
    4. Code Reviews for Security: Conduct security-focused code reviews for all Phabricator code changes, specifically looking for proper input validation and output encoding implementations.
  • Threats Mitigated:
    • Cross-Site Scripting (XSS) (High Severity): Output encoding prevents attackers from injecting malicious scripts into Phabricator pages that could be executed in other users' browsers.
    • SQL Injection (High Severity): Input validation helps prevent attackers from injecting malicious SQL code into database queries through user inputs.
    • Other Injection Vulnerabilities (Medium Severity): Input validation and output encoding can also mitigate other types of injection vulnerabilities, such as command injection or LDAP injection.
  • Impact:
    • Cross-Site Scripting (XSS): High Risk Reduction
    • SQL Injection: High Risk Reduction
    • Other Injection Vulnerabilities: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if secure coding practices, including input validation and output encoding, are enforced in Phabricator development.
    • To be determined: Determine if code reviews include security checks for input validation and output encoding.
    • Location: Phabricator codebase, development guidelines, code review process.
  • Missing Implementation:
    • To be determined: If input validation and output encoding are not consistently implemented in Phabricator code.
    • To be determined: If developers are not adequately trained on secure coding practices for Phabricator.
    • To be determined: If code reviews do not include security checks for input validation and output encoding.

Mitigation Strategy: Secure File Uploads and Attachments in Phabricator

  • Mitigation Strategy: Secure File Uploads and Attachments in Phabricator
  • Description:
    1. Implement File Type Restrictions in Phabricator: Configure Phabricator to restrict allowed file types for uploads and attachments. Only allow necessary file types and block potentially dangerous file types (e.g., executables, scripts, HTML files if not needed).
    2. Enforce File Size Limits in Phabricator: Set reasonable file size limits for uploads in Phabricator to prevent denial-of-service attacks through large file uploads and to manage storage space.
    3. Malware Scanning for Uploaded Files (Integration): Integrate Phabricator with a malware scanning solution to automatically scan uploaded files for malware before they are stored or made accessible to users.
    4. Secure Storage of Uploaded Files: Ensure that uploaded files are stored securely on the server. Prevent direct public access to uploaded files unless explicitly intended and carefully controlled through Phabricator's access control mechanisms. Store files outside the web server's document root if possible.
  • Threats Mitigated:
    • Malware Upload and Distribution (High Severity): Prevents users from uploading and distributing malware through Phabricator file uploads.
    • Denial of Service (DoS) via Large File Uploads (Medium Severity): File size limits help prevent DoS attacks through excessive file uploads.
    • Information Disclosure via Direct File Access (Medium Severity): Secure file storage prevents unauthorized direct access to uploaded files, protecting sensitive information.
  • Impact:
    • Malware Upload and Distribution: High Risk Reduction
    • Denial of Service (DoS) via Large File Uploads: Medium Risk Reduction
    • Information Disclosure via Direct File Access: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if file type restrictions are implemented in Phabricator.
    • To be determined: Verify if file size limits are enforced for uploads in Phabricator.
    • To be determined: Determine if malware scanning is implemented for uploaded files.
    • To be determined: Assess the security of file storage for uploaded files in Phabricator.
    • Location: Phabricator Admin Panel -> File Upload Settings, file storage configuration, malware scanning integration.
  • Missing Implementation:
    • To be determined: If file type restrictions are not implemented or are too permissive in Phabricator.
    • To be determined: If file size limits are not enforced or are too high.
    • To be determined: If malware scanning is not implemented for uploaded files.
    • To be determined: If file storage for uploaded files is not securely configured and protected from direct public access.

Mitigation Strategy: Implement Logging and Monitoring within Phabricator

  • Mitigation Strategy: Implement Logging and Monitoring within Phabricator
  • Description:
    1. Enable Comprehensive Logging in Phabricator: Configure Phabricator to enable comprehensive logging of security-relevant events. This should include:
      • Authentication Events: Successful and failed login attempts, MFA usage, account lockouts.
      • Authorization Events: Policy changes, permission modifications, access denials.
      • Administrative Actions: Configuration changes, user management actions, system updates.
      • Error Logs: Application errors and exceptions that might indicate security issues.
    2. Centralize Phabricator Logs: Configure Phabricator to send logs to a centralized logging system or Security Information and Event Management (SIEM) system for easier analysis, correlation, and long-term storage.
    3. Monitor Phabricator Logs for Suspicious Activity: Regularly monitor Phabricator logs for suspicious patterns or events that might indicate security incidents. This can include:
      • Unusual Login Attempts: Multiple failed login attempts from the same user or IP address.
      • Unauthorized Access Attempts: Access denials due to policy enforcement.
      • Unexpected Configuration Changes: Unexplained modifications to security-related settings.
      • Error Patterns: Recurring errors that might signal a vulnerability being exploited.
    4. Set Up Alerts for Critical Security Events: Configure alerts within the logging system or SIEM to automatically notify security teams of critical security events detected in Phabricator logs, enabling timely incident response.
  • Threats Mitigated:
    • Delayed Security Incident Detection (Medium to High Severity): Comprehensive logging and monitoring enable faster detection of security incidents affecting Phabricator.
    • Insufficient Audit Trail (Medium Severity): Logging provides an audit trail of security-relevant events, aiding in incident investigation and compliance.
    • Lack of Visibility into Security Events (Medium Severity): Monitoring provides visibility into security events occurring within Phabricator, allowing for proactive security management.
  • Impact:
    • Delayed Security Incident Detection: Medium to High Risk Reduction
    • Insufficient Audit Trail: Medium Risk Reduction
    • Lack of Visibility into Security Events: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if comprehensive logging is enabled in Phabricator.
    • To be determined: Determine if Phabricator logs are centralized in a logging system or SIEM.
    • To be determined: Verify if Phabricator logs are actively monitored for security events.
    • To be determined: Check if alerts are configured for critical security events in Phabricator logs.
    • Location: Phabricator Admin Panel -> Logging Settings, logging infrastructure, SIEM system.
  • Missing Implementation:
    • To be determined: If comprehensive logging is not enabled in Phabricator.
    • To be determined: If Phabricator logs are not centralized or are not easily accessible for security monitoring.
    • To be determined: If Phabricator logs are not actively monitored for security events.
    • To be determined: If alerts are not configured for critical security events in Phabricator logs, leading to delayed incident response.

Mitigation Strategy: Establish Incident Response Plan for Phabricator Security Incidents

  • Mitigation Strategy: Establish Incident Response Plan for Phabricator Security Incidents
  • Description:
    1. Develop Phabricator-Specific Incident Response Plan: Create a dedicated incident response plan specifically tailored to security incidents that may affect the Phabricator instance. This plan should be integrated with the overall organizational incident response plan but address Phabricator-specific scenarios.
    2. Define Roles and Responsibilities: Clearly define roles and responsibilities for incident handling related to Phabricator. Identify who is responsible for incident detection, analysis, containment, eradication, recovery, and post-incident activities for Phabricator security incidents.
    3. Establish Communication Procedures: Define communication procedures for security incidents involving Phabricator. Specify how incident information will be communicated to relevant stakeholders (security team, development team, management, users if necessary).
    4. Define Incident Response Steps: Outline step-by-step procedures for responding to different types of Phabricator security incidents (e.g., unauthorized access, data breach, vulnerability exploitation, malware incident). Include steps for:
      • Detection and Analysis: How to identify and analyze security incidents affecting Phabricator.
      • Containment: Steps to contain the incident and prevent further damage or spread within Phabricator.
      • Eradication: Procedures for removing the root cause of the incident and eliminating the threat from Phabricator.
      • Recovery: Steps to restore Phabricator to a secure and operational state after an incident.
      • Post-Incident Activity: Procedures for post-incident review, lessons learned, and plan updates.
    5. Regularly Test and Update the Plan: Regularly test the Phabricator incident response plan through simulations or tabletop exercises. Update the plan based on lessons learned from tests, real incidents, and changes to the Phabricator environment or threat landscape.
  • Threats Mitigated:
    • Ineffective Incident Response (Medium to High Severity): A well-defined incident response plan ensures a more effective and timely response to Phabricator security incidents, minimizing damage and recovery time.
    • Prolonged Downtime After Security Incidents (Medium Severity): A plan helps reduce downtime by streamlining the incident response process.
    • Increased Damage from Security Incidents (Medium to High Severity): Faster and more effective incident response limits the potential damage caused by security incidents affecting Phabricator.
  • Impact:
    • Ineffective Incident Response: Medium to High Risk Reduction
    • Prolonged Downtime After Security Incidents: Medium Risk Reduction
    • Increased Damage from Security Incidents: Medium to High Risk Reduction
  • Currently Implemented:
    • To be determined: Check if a dedicated incident response plan exists for Phabricator security incidents.
    • To be determined: Determine if roles and responsibilities are defined for Phabricator incident handling.
    • To be determined: Verify if communication procedures are established for Phabricator security incidents.
    • To be determined: Check if the plan includes step-by-step procedures for different incident types.
    • To be determined: Determine if the plan is regularly tested and updated.
    • Location: Incident response documentation, security policies, operational procedures.
  • Missing Implementation:
    • To be determined: If a dedicated incident response plan for Phabricator security incidents is missing.
    • To be determined: If roles, responsibilities, and communication procedures are not clearly defined for Phabricator incident handling.
    • To be determined: If the plan lacks detailed step-by-step procedures for responding to various incident types affecting Phabricator.
    • To be determined: If the incident response plan is not regularly tested and updated, potentially leading to inefficiencies or gaps in response capabilities.

Mitigation Strategy: Regular Security Awareness Training for Phabricator Users

  • Mitigation Strategy: Regular Security Awareness Training for Phabricator Users
  • Description:
    1. Include Phabricator-Specific Security Training: Incorporate Phabricator-specific security awareness training into the organization's overall security training program.
    2. Educate Users on Secure Phabricator Usage: Train Phabricator users on secure usage practices relevant to Phabricator, such as:
      • Password Security: Emphasize the importance of strong, unique passwords for Phabricator accounts and password management best practices.
      • Phishing Awareness: Train users to recognize and avoid phishing attempts targeting Phabricator users.
      • Policy Awareness: Educate users about Phabricator security policies and access controls relevant to their roles.
      • Secure Collaboration Practices: Train users on secure collaboration practices within Phabricator, such as avoiding sharing sensitive information in public areas or insecure channels.
      • Reporting Suspicious Activity: Instruct users on how to report suspicious activity or potential security incidents within Phabricator.
    3. Regular Training and Reminders: Conduct security awareness training for Phabricator users regularly (e.g., annually or bi-annually). Provide periodic reminders and updates on security best practices and emerging threats related to Phabricator.
    4. Tailor Training to User Roles: Tailor security awareness training content to different user roles within Phabricator. Provide more in-depth training for administrators and users with access to sensitive data or configurations.
  • Threats Mitigated:
    • Phishing Attacks Targeting Phabricator Users (Medium to High Severity): Security awareness training helps users recognize and avoid phishing attacks aimed at stealing Phabricator credentials or sensitive information.
    • Weak Passwords and Account Compromise (Medium Severity): Training promotes stronger password practices, reducing the risk of account compromise due to weak passwords.
    • Insider Threats (Accidental) (Low to Medium Severity): Training can reduce accidental insider threats by educating users on secure data handling and collaboration practices within Phabricator.
    • Social Engineering Attacks (Medium Severity): Awareness training can help users resist social engineering attempts targeting Phabricator access or information.
  • Impact:
    • Phishing Attacks Targeting Phabricator Users: Medium to High Risk Reduction
    • Weak Passwords and Account Compromise: Medium Risk Reduction
    • Insider Threats (Accidental): Low to Medium Risk Reduction
    • Social Engineering Attacks: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if security awareness training includes Phabricator-specific content.
    • To be determined: Determine the frequency and scope of security awareness training for Phabricator users.
    • To be determined: Verify if training content is tailored to different user roles within Phabricator.
    • Location: Training materials, security awareness program documentation.
  • Missing Implementation:
    • To be determined: If security awareness training does not include Phabricator-specific content or secure usage practices.
    • To be determined: If security awareness training is not conducted regularly for Phabricator users.
    • To be determined: If training content is not tailored to different user roles within Phabricator, potentially leaving some users less prepared for specific threats.

Mitigation Strategy: Perform Regular Security Audits of Phabricator Environment

  • Mitigation Strategy: Perform Regular Security Audits of Phabricator Environment
  • Description:
    1. Establish Audit Schedule: Define a regular schedule for conducting security audits of the Phabricator environment (e.g., annually or bi-annually).
    2. Define Audit Scope: Determine the scope of each audit, including:
      • Configuration Review: Review Phabricator configuration settings for security best practices and potential misconfigurations.
      • Policy Review: Audit Phabricator policies and access controls to ensure they are effective and appropriately enforced.
      • Vulnerability Assessment: Conduct vulnerability assessments and penetration testing of the Phabricator instance to identify security weaknesses.
      • Log Review: Review Phabricator logs for security-relevant events and anomalies.
      • Code Review (if applicable): If custom Phabricator code or extensions are in use, include security code reviews in the audit scope.
      • Compliance Review: Assess Phabricator's compliance with relevant security policies and regulatory requirements.
    3. Document Audit Findings: Document all findings from security audits, including identified vulnerabilities, misconfigurations, policy gaps, and compliance issues.
    4. Track Remediation Efforts: Establish a process for tracking remediation efforts for audit findings. Assign responsibility for remediation tasks and monitor progress until all identified issues are resolved.
    5. Retest After Remediation: After implementing remediation measures, retest the affected areas to verify that the identified security issues have been effectively addressed.
  • Threats Mitigated:
    • Undetected Security Weaknesses (Medium to High Severity): Regular security audits help identify and address security weaknesses in the Phabricator environment that might otherwise go undetected.
    • Compliance Violations (Medium Severity): Audits help ensure Phabricator's compliance with security policies and regulatory requirements.
    • Accumulation of Security Debt (Medium Severity): Regular audits prevent the accumulation of security debt by proactively identifying and addressing security issues.
  • Impact:
    • Undetected Security Weaknesses: Medium to High Risk Reduction
    • Compliance Violations: Medium Risk Reduction
    • Accumulation of Security Debt: Medium Risk Reduction
  • Currently Implemented:
    • To be determined: Check if regular security audits are performed on the Phabricator environment.
    • To be determined: Determine the frequency and scope of security audits.
    • To be determined: Verify if audit findings are documented and tracked for remediation.
    • Location: Security audit schedules, audit reports, vulnerability management system.
  • Missing Implementation:
    • To be determined: If regular security audits are not performed on the Phabricator environment.
    • To be determined: If audits are not comprehensive in scope, missing key security areas.
    • To be determined: If audit findings are not properly documented and tracked for remediation, leading to unresolved security issues.