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 Docker Credential leaked! What should I do?

What is a Docker Credential and how it is used?

A Docker Credential is a secure piece of information, such as a username and password or API token, that is used to authenticate and access external services or resources within a Docker environment.

Here are the main use cases for Docker Credential:

  • Securely store and manage sensitive information such as usernames, passwords, API keys, and other credentials used in Dockerized applications.
  • Facilitate the authentication process between Docker and external registries, allowing for secure access to private images and repositories.
  • Automate the deployment process by securely providing credentials to Docker containers without exposing them in plain text within Dockerfiles or scripts.

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1. Code snippets to prevent Docker Credential hardcoding using environment variables

Using environment variables for Docker credentials in your code can be considered secure for the following reasons:

  • Environment variables are not stored in your code repository, reducing the risk of exposure through version control.
  • Environment variables are specific to the container instance in which they are set, limiting access to the credentials to only that instance.
  • Environment variables can be easily managed and updated without the need to modify the code, improving security by reducing the chances of accidental exposure.

How to secure your secrets using environment variables

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2. Code snippet to prevent Docker Credential hardcoding using AWS Secrets Manager

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

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3. Code snippet to prevent Docker Credential hardcoding using HashiCorp Vault

Using HashiCorp Vault for managing Docker Credentials is a great way to enhance security. Here are code snippets in five different programming languages for securely handling a Docker Credential 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 Docker Credential 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 Docker Credential hardcoding using CyberArk Conjur

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

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How to generate a Docker Credential?

Generating a Docker Credential involves following a few steps to ensure secure and efficient access to Docker registries. Here's a guide for developers:

  1. Log in to your Docker registry using the command line or a web interface.
  2. Access the user settings or account management section to generate a new credential.
  3. Choose the type of credential you want to generate, such as a username and password, token, or SSH key.
  4. Follow the prompts to create the credential, making sure to store it securely and not share it with unauthorized users.
  5. Once the credential is generated, you can use it in your Docker commands or configuration files to authenticate with the registry and access your images.

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My Docker Credential leaked, what are the possible reasons?

There are several reasons why a Docker Credential might have been leaked:

  • Improper storage: Credentials stored in Dockerfiles, code repositories, or insecure storage locations can be easily accessed by unauthorized users.
  • Weak access controls: Inadequate access controls or permissions can lead to unauthorized users gaining access to Docker credentials.
  • Unencrypted communication: Transmitting Docker credentials over unencrypted channels can expose them to interception and theft.
  • Shared environments: In shared environments, other users or containers may inadvertently or maliciously access Docker credentials.
  • Compromised containers: If a container hosting Docker credentials is compromised, the credentials can be extracted by attackers.

What are the risks of leaking a Docker Credential

When it comes to Docker Credentials, it is crucial for developers to understand the risks associated with leaking such sensitive information. Docker Credentials are used to authenticate with container registries, allowing developers to pull and push images to these registries securely. If these credentials are leaked, it can lead to serious security vulnerabilities and potential breaches.

  • Unauthorized Access: Leaking Docker Credentials can allow unauthorized individuals to access your container registry, potentially leading to data theft or unauthorized deployments.
  • Compromised Images: Attackers with access to your Docker Credentials can push malicious images to your container registry, which can then be deployed within your infrastructure, leading to further compromises.
  • Financial Loss: Leaked Docker Credentials can be used to spin up unauthorized resources on cloud platforms, resulting in financial loss for your organization.
  • Reputation Damage: A security breach due to leaked Docker Credentials can severely damage the reputation of your organization, leading to loss of trust from customers and partners.

Therefore, it is essential for developers to follow best practices for secret management and detection to prevent the leakage of Docker Credentials and ensure the security of their containerized applications.

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Docker Credential security best practices

  • Avoid embedding the secret directly in your code. Instead, use environment variables or secrets managers‍
  • Secure storage: store the Docker Credential 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 Docker Credential usage and improve the overall security of your Docker Credential implementations.

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

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Docker Credential 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 Docker Credential was used by malicious actors

  • Review Access Logs: Check the access logs of your Docker Credential 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 Docker Credential. This can give insights into any unauthorized use of your key.

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Steps to revoke the Docker Credential

Generate a new Docker Credential:

  • Log into your Docker Credential 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 Docker Credential:

  • 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 Docker Credential.
  • 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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