đź“… Webinar - Delivering Security on Your Terms: An Intro to Self-Hosted

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đź“… Webinar - Delivering Security on Your Terms: An Intro to Self-Hosted

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My Supabase JWT Secret leaked! What should I do?

What is a Supabase JWT Secret and how it is used?

A Supabase JWT Secret is a unique key used for encoding and decoding JSON Web Tokens (JWT) in Supabase authentication, providing a secure way to authenticate users and manage access to resources.

  • Authentication: Supabase JWT Secret is used to securely generate and verify JSON Web Tokens (JWT) for user authentication. This helps in securely identifying and authorizing users when they access resources or perform actions within an application.
  • Authorization: The JWT Secret is also utilized to enforce access control and permissions by embedding user roles and permissions within the JWT. This allows developers to restrict access to certain resources based on the user's role or permissions.
  • Data Protection: By using the JWT Secret to sign and encrypt JWTs, developers can ensure the integrity and confidentiality of the data transmitted between the client and server. This enhances the overall security of the application and protects sensitive information from unauthorized access.

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1. Code snippets to prevent Supabase JWT Secret hardcoding using environment variables

Using environment variables for the Supabase JWT Secret in your code is a secure practice because:

  • Environment variables are not hard-coded in the codebase, reducing the risk of exposing sensitive information in case of a breach.
  • Environment variables are stored outside of the code repository, making it harder for unauthorized users to access them.
  • Environment variables can be managed and controlled by the system administrator, allowing for easy rotation and updating of secrets without changing the code.

How to secure your secrets using environment variables

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2. Code snippet to prevent Supabase JWT Secret hardcoding using AWS Secrets Manager

Using AWS Secrets Manager to manage Supabase JWT Secrets is a secure way to handle sensitive data. Here are code snippets in five different programming languages that demonstrate how to retrieve the Supabase JWT Secret from AWS Secrets Manager.

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3. Code snippet to prevent Supabase JWT Secret hardcoding using HashiCorp Vault

Using HashiCorp Vault for managing Supabase JWT Secrets is a great way to enhance security. Here are code snippets in five different programming languages for securely handling a Supabase JWT Secret using HashiCorp Vault.

Remember to replace the VAULT_ADDR and VAULT_TOKEN with your Vault server address and authentication token. The snippets assume that the Supabase JWT Secret is stored under the api_key field within Vault. The specifics of the Vault path and field names should be adjusted to match your Vault setup.

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4. Code snippet to prevent Supabase JWT Secret hardcoding using CyberArk Conjur

Using CyberArk Conjur to manage Supabase JWT Secret is a secure way to handle sensitive data. Here are code snippets in five different programming languages that demonstrate how to retrieve the Supabase JWT Secret from CyberArk Conjur.

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How to generate a Supabase JWT Secret?

To generate a Supabase JWT Secret, developers can follow these steps:

  1. Log in to the Supabase dashboard.
  2. Click on the Project Settings tab.
  3. Under the Authentication section, locate the JWT Secret field.
  4. Click on the Generate button next to the JWT Secret field to create a new secret.
  5. Copy the generated JWT Secret and securely store it for use in your application.

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My Supabase JWT Secret leaked, what are the possible reasons?

There are several reasons why a Supabase JWT Secret might have been leaked:

  • Poor coding practices leading to vulnerabilities in the application code.
  • Weak server security allowing unauthorized access to sensitive data.
  • Sharing the JWT Secret in plaintext through insecure communication channels.
  • Storing the JWT Secret in a public repository or insecure location.
  • Insufficient access controls allowing unauthorized users to view the JWT Secret.

What are the risks of leaking a Supabase JWT Secret

When it comes to the Supabase JWT Secret, it is crucial for developers to understand the risks associated with leaking this sensitive information. Here are some key points to consider:

  • Leaking the Supabase JWT Secret can lead to unauthorized access to your Supabase database and resources.
  • Attackers who obtain the JWT Secret can potentially impersonate legitimate users and perform malicious actions within your application.
  • Exposing the JWT Secret can result in data breaches, compromising the confidentiality and integrity of your users' data.
  • Once the JWT Secret is leaked, it can be challenging to mitigate the damage and regain control over your system.

It is essential for developers to prioritize the protection of the Supabase JWT Secret and implement robust security measures to prevent unauthorized access and potential security breaches.

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Supabase JWT Secret security best practices

  • Avoid embedding the secret directly in your code. Instead, use environment variables or secrets managers‍
  • Secure storage: store the Supabase JWT Secret in a secure location, such as a password manager or a secrets management service.
  • Regular rotation: periodically rotate the API key to minimize the risk of long-term exposure.
  • Restrict permissions: apply the principle of least privilege by only granting the key the minimum necessary permissions.
  • Monitor usage: regularly check the usage logs for any unusual activity or unauthorized access attempts.
  • Implement access controls: limit the number of users who have access to the secret and enforce strong authentication measures.
  • Use a secrets manager: utilize secret management tools like CyberArk or AWS Secrets Manager for enhanced security.

By adhering to the best practices, you can significantly reduce the risk associated with Supabase JWT Secret usage and improve the overall security of your Supabase JWT Secret implementations.

Exposing secrets on GitHub: What to do after leaking Credential and API keys

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Supabase JWT Secret leak remediation: what to do

What to do if you expose a secret: How to stay calm and respond to an incident [cheat sheet included]

How to check if Supabase JWT Secret was used by malicious actors

  • Review Access Logs: Check the access logs of your Supabase JWT Secret account for any unauthorized access or unusual activity. Pay particular attention to access from unfamiliar IP addresses (if you haven’t set up a specific allow list) or at odd hours.
  • Monitor Usage Patterns: Look for anomalies in the usage patterns, such as unexpected spikes in data access or transfer.
  • Check Active Connections and Operations: Review the list of active connections and recent operations on your database. Unusual or unauthorized operations might indicate malicious use.
  • Audit API Usage: If possible, audit the usage of your API key through any logging or monitoring services you have integrated with Supabase JWT Secret. This can give insights into any unauthorized use of your key.

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Steps to revoke the Supabase JWT Secret

Generate a new Supabase JWT Secret:

  • Log into your Supabase JWT Secret account.
  • Navigate to the API section and generate a new API key.

Update Services with the new key:

  • Replace the compromised key with the new key in all your services that use this API key.
  • Ensure all your applications and services are updated with the new key before deactivating the old one.

Deactivate the old Supabase JWT Secret:

  • Once the new key is in place and everything is functioning correctly, deactivate the old API key.
  • This can typically be done from the same section where you generated the new key.

Monitor after key rotation:

  • After deactivating the old key, monitor your systems closely to ensure that all services are running smoothly and that there are no unauthorized access attempts.

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How to understand which services will stop working

  • Inventory of services: keep an inventory of all services and applications that utilize your Supabase JWT Secret.
  • Communication and documentation: Ensure that your team is aware of which services are dependent on the key. Maintain documentation for quick reference.
  • Testing: before deactivating the old key, test your services with the new key in a staging environment. This helps in identifying any services that might face issues post rotation.
  • Fallback strategies: Have a fallback or emergency plan in case a critical service fails after the key rotation. This might include temporary measures or quick rollback procedures.

In summary, the remediation process involves identifying potential misuse, carefully rotating the key, and ensuring minimal disruption to services. Being proactive and having a well-documented process can greatly reduce the risks associated with a compromised API key.

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What about other secrets?

GitGuardian helps developers keep 350+ types of secrets out of source code. GitGuardian’s automated secrets detection and remediation solution secure every step of the development lifecycle, from code to cloud:

  • On developer workstations with git hooks (pre-commit and pre-push);
  • On code sharing platforms like GitHub, GitLab, and Bitbucket;
  • In CI environments (Circle CI, Travis CI, Jenkins CI, GitHub Actions, and many more);
  • In Docker images.

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Environment Variables
Environment Variables
Environment Variables

charge

nullable string

For card errors, the ID of the failed charge.

payment_method_type

nullable string

If the error is specific to the type of payment method, the payment method type that had a problem. This field is only populated for invoice-related errors.

doc_url

nullable string

A URL to more information about the error code reported.

request_log_url

nullable string

A URL to the request log entry in your dashboard.

charge

nullable string

If the error is specific to the type of payment method, the payment method type that had a problem. This field is only populated for invoice-related errors.

Hide
Show
child attributes

type

enum

For some errors that could be handled programmatically, a short string indicating the error code reported.

charge

nullable string

If the error is specific to the type of payment method, the payment method type that had a problem. This field is only populated for invoice-related errors.

Hide
Show
child attributes

type

enum

For some errors that could be handled programmatically, a short string indicating the error code reported.

payment_intent

nullable object

The PaymentIntent object for errors returned on a request involving a PaymentIntent.

setup_intent

nullable object

The SetupIntent object for errors returned on a request involving a SetupIntent.

Hide
Show
child attributes

type

enum

For some errors that could be handled programmatically, a short string indicating the error code reported.

Hide
Show
child attributes

type

enum

For some errors that could be handled programmatically, a short string indicating the error code reported.

CLIENT LIBRARIES

$ gem install stripe
$ pip install stripe
$ composer require stripe/stripe-php
MAVEN
<dependency>
  <groupId>com.stripe</groupId>
  <artifactId>stripe-java</artifactId>
  <version>24.16.0</version>
</dependency>

GRADLE
compile "com.stripe:stripe-java:24.16.0"
$ npm install --save stripe
$ go get github.com/stripe/stripe-go/v76
$ nuget install Stripe.net
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