Skip to content

Latest commit

 

History

History
172 lines (123 loc) · 9.18 KB

mitigations.md

File metadata and controls

172 lines (123 loc) · 9.18 KB

Mitigation Strategies Analysis for vitessio/vitess

Mitigation Strategy: Strong Authentication and Authorization for VTGate

Mitigation Strategy: Implement robust authentication and authorization for all VTGate clients using Vitess features.

Description:

  1. Implement mTLS: Use mutual TLS (mTLS) for service-to-service communication. This requires clients to present a valid TLS certificate to VTGate, proving their identity. Configure VTGate to validate client certificates using Vitess's TLS options.
  2. Configure Vitess ACLs: Define granular access control lists (ACLs) within Vitess. These ACLs specify which clients (identified by their TLS certificate common name or other attributes) can access which keyspaces, shards, and tables. Use the principle of least privilege. Utilize Vitess's ACL table feature.
  3. Regular ACL Review: Schedule regular reviews (e.g., quarterly) of the Vitess ACLs to ensure they remain appropriate.

Threats Mitigated:

  • Unauthorized Database Access (Severity: Critical): Prevents attackers from directly accessing the database through VTGate without proper credentials.
  • Data Modification (Severity: Critical): Prevents unauthorized users from modifying data.
  • Data Exfiltration (Severity: Critical): Prevents unauthorized users from extracting sensitive data.
  • Privilege Escalation (Severity: High): Limits the impact of a compromised client.

Impact:

  • Unauthorized Database Access: Risk reduced significantly (90-95%).
  • Data Modification: Risk reduced significantly (90-95%).
  • Data Exfiltration: Risk reduced significantly (90-95%).
  • Privilege Escalation: Risk reduced significantly (70-80%).

Currently Implemented: [Example: Basic ACLs in place for keyspaces, but mTLS is not yet implemented.]

Missing Implementation: [Example: mTLS between application servers and VTGate, granular ACLs at the table level, regular ACL review process.]

Mitigation Strategy: VTGate Rate Limiting and Connection Pooling

Mitigation Strategy: Configure rate limiting and connection pooling on VTGate using Vitess flags.

Description:

  1. Connection Pooling: Use VTGate's built-in connection pooling. Set limits using VTGate flags:
    • --queryserver-config-max-connections
    • --queryserver-config-pool-size
    • --queryserver-config-idle-timeout
  2. Rate Limiting: Implement rate limiting using VTGate flags:
    • --enable_queries_rate_limit
    • --queries_rate_limit_dry_run
    • --queries_rate_limit (and related flags for custom logic)
  3. Monitoring: Monitor connection pool usage and rate limiting metrics using Vitess's exposed metrics.

Threats Mitigated:

  • Denial-of-Service (DoS) (Severity: High): Prevents overwhelming VTGate or MySQL.
  • Resource Exhaustion (Severity: High): Prevents connection exhaustion.

Impact:

  • DoS: Risk reduced significantly (70-80%).
  • Resource Exhaustion: Risk reduced significantly (80-90%).

Currently Implemented: [Example: Basic connection pooling configured, but no rate limiting.]

Missing Implementation: [Example: Rate limiting configuration, monitoring of rate limiting metrics.]

Mitigation Strategy: Strict VSchema Management and Validation

Mitigation Strategy: Treat the VSchema as code and implement rigorous validation and deployment procedures using Vitess tools.

Description:

  1. Version Control: Store the VSchema (JSON file) in a version control system.
  2. CI/CD Pipeline: Use a CI/CD pipeline with Vitess tools:
    • Validate: Use vtctl ValidateVSchema to check for errors.
    • Test: Simulate query routing using a test environment and vtctl commands.
    • Deploy: Apply changes using vtctl ApplySchema (with appropriate flags for controlled rollout).
  3. Canary Deployments: Use vtctl and VTGate flags to route a small percentage of traffic to a new VSchema.
  4. Monitoring: Monitor for VSchema-related errors using Vitess's exposed metrics.

Threats Mitigated:

  • Data Leakage (Severity: High): Incorrect routing.
  • Incorrect Query Execution (Severity: High): Wrong shard routing.
  • Data Inconsistency (Severity: High): Mismatched schemas.

Impact:

  • Data Leakage: Risk reduced significantly (80-90%).
  • Incorrect Query Execution: Risk reduced significantly (80-90%).
  • Data Inconsistency: Risk reduced significantly (70-80%).

Currently Implemented: [Example: VSchema in Git, no CI/CD or automated testing.]

Missing Implementation: [Example: CI/CD with vtctl commands, canary deployments, VSchema-specific monitoring.]

Mitigation Strategy: Secure VReplication

Mitigation Strategy: Use TLS for VReplication and verify checksums using Vitess configuration.

Description:

  1. Enable TLS: Configure VReplication to use TLS using VTTablet flags:
    • --vreplication_tablet_type
    • --vreplication_ssl_ca
    • --vreplication_ssl_cert
    • --vreplication_ssl_key
  2. Checksum Verification: Enable checksum verification using vtctl or VTTablet flags.

Threats Mitigated:

  • Data Interception (Severity: High): Prevents eavesdropping on VReplication.
  • Data Modification (Severity: High): Prevents data tampering during replication.
  • Data Corruption (Severity: High): Detects accidental corruption.

Impact:

  • Data Interception: Risk reduced significantly (90-95%).
  • Data Modification: Risk reduced significantly (80-90%).
  • Data Corruption: Risk reduced significantly (70-80%).

Currently Implemented: [Example: VReplication used, but TLS is not enabled.]

Missing Implementation: [Example: TLS configuration for VReplication, checksum verification.]

Mitigation Strategy: Keep Vitess Updated

Mitigation Strategy: Regularly update the Vitess deployment to the latest stable release. This is inherently tied to Vitess.

Description: (Same as before - this is still directly related to Vitess)

  1. Subscribe to Announcements: Subscribe to Vitess security announcements.
  2. Testing: Test updates in a non-production environment.
  3. Rollback Plan: Have a rollback plan.

Threats Mitigated:

  • Known Vulnerabilities (Severity: Variable, potentially Critical): Exploitation of known Vitess vulnerabilities.

Impact:

  • Known Vulnerabilities: Risk reduced significantly (90-100%).

Currently Implemented: [Example: Manual updates, no formal process.]

Missing Implementation: [Example: Formal update process, testing, rollback plan.]

Mitigation Strategy: Comprehensive Logging and Auditing (Vitess-Specific Parts)

Mitigation Strategy: Enable detailed logging for Vitess components and utilize Vitess's logging features.

Description:

  1. Vitess Logging: Enable detailed logging for VTGate, VTTablet, and vtctld. Configure log levels and rotation using Vitess flags.
  2. Log Centralization: Centralize Vitess logs.
  3. Log Analysis: Analyze Vitess logs for suspicious activity.

Threats Mitigated:

  • Intrusion Detection (Severity: Variable): Helps detect incidents.
  • Troubleshooting (Severity: Low to High): Aids in problem diagnosis.

Impact: * Intrusion Detection: Provides evidence, doesn't prevent attacks. * Troubleshooting: Significantly improves troubleshooting.

Currently Implemented: [Example: Basic logging, no centralization or analysis.] Missing Implementation: [Example: Log centralization, analysis, regular review.]

Mitigation Strategy: Robust Monitoring and Alerting (Vitess-Specific Parts)

Mitigation Strategy: Implement comprehensive monitoring and alerting for Vitess components using Vitess's exposed metrics.

Description:

  1. Metrics Collection: Collect metrics from VTGate, VTTablet, and vtctld using a monitoring system (e.g., Prometheus) and Vitess's /debug/vars endpoint.
  2. Dashboards: Create dashboards for Vitess metrics.
  3. Alerting: Define alerts for Vitess-specific events:
    • High query latency (using Vitess metrics)
    • Replication lag (using Vitess metrics)
    • Component failures (VTGate, VTTablet, vtctld - using Vitess status checks)

Threats Mitigated:

  • Performance Degradation (Severity: Low to High): Early detection.
  • System Outages (Severity: High): Early detection of failures.
  • Security Incidents (Severity: Variable): Early warning.

Impact: * Performance Degradation: Proactive intervention. * System Outages: Reduces downtime. * Security Incidents: Early warning.

Currently Implemented: [Example: No Vitess-specific metrics or alerting.]

Missing Implementation: [Example: Vitess metrics collection, dashboards, alerts.]