Brute Force Attack in Strapi with Cockroachdb

A brute force attack against a Strapi instance backed by CockroachDB involves repeated authentication attempts to guess valid user credentials. Because Strapi’s default configuration may allow unlimited login attempts against the local authentication endpoint, an attacker can systematically submit passwords until one succeeds. The presence of CockroachDB does not inherently weaken authentication, but operational characteristics can indirectly affect risk. CockroachDB is a distributed SQL database often deployed across multiple nodes; if connection pooling or ORM settings expose database responses with timing differences, subtle timing variance may assist an attacker in inferring account existence or system load. More critically, if Strapi’s admin or user collection is stored in CockroachDB and the application does not enforce rate limiting or progressive delays, the database will faithfully serve each authentication request without throttling. This means the bottleneck shifts to Strapi’s login logic rather than the database, making brute force feasible when protections are absent. Attack patterns such as credential stuffing or password spraying become practical when there is no lockout mechanism and the API endpoint is unauthenticated or weakly monitored. The combination therefore exposes risk when Strapi lacks controls, while CockroachDB’s role is primarily as a durable backend that does not interfere with attack tooling. Without proper safeguards, an attacker can iterate through common passwords or use leaked credential lists, submitting POST requests to /auth/local and observing 200 responses for successful logins. The OWASP API Security Top 10 category Broken Authentication and Session Management applies here, and findings from a scan may map to this category, providing remediation guidance to tighten authentication pathways.

Remediation focuses on hardening Strapi’s authentication layer and ensuring database-side configurations discourage abuse. First, enforce rate limiting at the Strapi middleware level so that repeated requests from the same IP or identifier are throttled. Configure security policies in Strapi’s settings to introduce increasing delays or temporary blocks after failed attempts. Second, avoid exposing verbose error messages that differentiate between missing users and incorrect passwords; normalize responses to prevent user enumeration. Third, rotate and protect database credentials used by Strapi, and restrict CockroachDB network exposure so that only the application can connect. Below are concrete CockroachDB code examples to support secure deployment when Strapi uses CockroachDB as its data store.

• Create a dedicated database user for Strapi with minimal privileges:

CREATE USER strapi_user WITH PASSWORD 'strong_password_here';

• Grant the user access only to required schemas and tables, avoiding broad permissions:

GRANT SELECT, INSERT, UPDATE ON TABLE public.users TO strapi_user;
GRANT SELECT, INSERT, UPDATE ON TABLE public.permission_roles TO strapi_user;

• Use secure connection parameters in Strapi’s database configuration (config/database.js), ensuring SSL is enforced where available:

module.exports = ({
  defaultConnection: 'default',
  connections: {
    default: {
      connector: 'bookshelf',
      settings: {
        client: 'postgres',
        host: 'your-cockroachdb-host',
        port: 26257,
        database: 'your_database',
        username: 'strapi_user',
        password: 'strong_password_here',
        ssl: {
          rejectUnauthorized: true,
        },
      },
      options: {
        schemaName: 'public',
        supportSearchParams: true,
      },
    },
  },
});

• Implement application-level rate limiting within Strapi to protect authentication endpoints. For instance, using a policy that tracks attempts per identifier and introduces backoff:

// Example policy logic (pseudo-code for Strapi policies)
const attempts = await strapi.entityService.findMany('api::rate-limit.attempt', {
  filters: { identifier: email },
});
if (attempts.length >= 5) {
  const latest = attempts[attempts.length - 1];
  const waitSeconds = Math.pow(2, attempts.length - 5);
  if (Date.now() - latest.createdAt < waitSeconds * 1000) {
    throw new Error('Too many attempts, try later');
  }
}

• Ensure audit logging is enabled in CockroachDB to detect suspicious authentication patterns over time:

SET CLUSTER SETTING server.event_log.enabled = true;

• Regularly rotate credentials and review active sessions. Use CockroachDB’s built-in utilities to inspect connection activity and terminate idle or suspicious sessions:

SELECT * FROM crdb_internal.sessions WHERE application_name = 'strapi';