Auth Bypass in Adonisjs with Cockroachdb

Auth bypass in Adonisjs when using Cockroachdb can occur when authentication guards and session handling are misaligned with how Cockroachdb manages identifiers and transactions. Adonisjs relies on a clear separation between authentication guards (e.g., session or JWT) and the user model used to verify credentials. If the model used for authentication does not properly scope queries to the correct tenant or if raw Cockroachdb connections are used without parameterization, an attacker may manipulate identifiers to escalate privileges or bypass intended access controls.

One common pattern is defining an authentication guard that uses the User model, but inadvertently allowing unauthenticated access to certain routes due to missing route-level middleware or misconfigured guards. Cockroachdb’s strong consistency and distributed nature do not prevent logical flaws in application code; if an API endpoint performs a direct SQL-like query using unvalidated IDs (e.g., using userId from request parameters without authorization checks), an attacker can substitute another valid user’s ID and gain access to their data.

Additionally, Adonisjs’s Lucid ORM relies on schema definitions. If the schema for the users table in Cockroachdb does not enforce uniqueness and proper indexing on the identifier column used for authentication, an attacker may leverage timing differences or ambiguous matches to bypass expected guard behavior. Without proper row-level security patterns implemented at the application layer, the combination of Adonisjs guards and Cockroachdb’s SQL interface can expose endpoints that appear protected but are not.

For example, consider a route that fetches a user profile using a path parameter without verifying that the authenticated user owns that ID:

Route.get('/users/:id', async ({ params, auth }) => {
  const user = await User.findOrFail(params.id)
  return user
})

If the auth instance is not enforced (e.g., the route lacks an auth middleware) or if the guard does not scope the query to the authenticated user’s ID, an attacker can enumerate IDs and access other users’ profiles. This is not a Cockroachdb-specific flaw but an application-layer bypass enabled by weak authorization logic combined with direct database access patterns.

Another vector involves session fixation or improper guard configuration. Adonisjs supports multiple guards (e.g., web, api). If a developer configures a guard incorrectly or uses raw client sessions without validating the guard’s context, a user may be authenticated under a less-privileged guard while accessing admin routes that rely on a different guard configuration.

Finally, in distributed deployments using Cockroachdb, ensure that all authentication-related queries explicitly use parameterized statements to avoid injection or confusion in transaction contexts. Adonisjs’s query builder helps, but developers must avoid falling back to raw queries that bypass model-level protections.

To remediate auth bypass risks when using Cockroachdb with Adonisjs, enforce strict scoping of queries to the authenticated user and validate all identifiers server-side. Use Adonisjs’s built-in authentication guards and ensure every data access path checks ownership or permissions, especially when interacting with Cockroachdb via Lucid ORM.

First, always use route-level middleware to enforce authentication. For example, protect user-specific routes with the auth middleware and scope queries to the authenticated user’s ID:

Route.get('/users/me', async ({ auth }) => {
  const user = await auth.getUserOrFail()
  return user
}).middleware(['auth'])

Second, when retrieving resources by ID, verify that the authenticated user has permission to access that resource. Avoid using raw IDs directly without ownership checks:

Route.get('/users/:id', async ({ params, auth }) => {
  const user = await auth.getUserOrFail()
  if (user.id !== params.id) {
    throw new Error('Unauthorized')
  }
  return user
}).middleware(['auth'])

Third, ensure your Cockroachdb schema enforces constraints that support secure lookups. For example, define a unique index on the identifier used for authentication:

import { BaseSchema } from '@ioc:Adonisjs/Lucid/Schema'

export default class extends BaseSchema {
  protected tableName = 'users'

  up () {
    this.schema.createTable(this.tableName, (table) =>
      table.increments('id').primary()
      table.string('email', 255).notNullable().unique()
      table.string('password', 180).notNullable()
      table.timestamp('created_at', { useTz: true })
      table.timestamp('updated_at', { useTz: true })
    )
  }

  down () {
    this.schema.dropTable(this.tableName)
  }
}

Fourth, when using raw queries for Cockroachdb, always parameterize inputs and avoid concatenating identifiers:

const user = await Database.from('users').where('id', dbId).first()

Do not write:

const user = await Database.from('users').where('id', userId).first() // unsafe if userId is user-controlled

Instead, validate and sanitize userId against the authenticated user’s ID before using it in any query. With Cockroachdb, ensure that transactions are explicit and do not rely on implicit session state that might be misaligned across distributed nodes.

Finally, use Adonisjs’s provider configuration to define a custom guard if needed, ensuring that the user provider correctly resolves the model used for authentication against Cockroachdb:

// start/auth.ts
import { HttpContextContract } from '@ioc:Adonis/Core/HttpContext'
import { rules, schema } from '@ioc:Adonis/Core/Validator'

const AuthSchema = schema.create({
  email: schema.string({ trim: true }, [rules.email(), rules.exists({ table: 'users', column: 'email' })]),
  password: schema.string({}, [rules.confirmed()]),
})

export default class AuthController {
  public async login({ auth, request, response }: HttpContextContract) {
    const email = request.input('email')
    const password = request.input('password')
    await auth.use('api').attempt(email, password)
    return response.ok()
  }
}