My Doppler API Key leaked! What should I do?

What is a Doppler API Key and how it is used?

A Doppler API Key is a unique identifier that grants access to the Doppler API, allowing developers to securely manage and retrieve their application's secrets.

Here are the main use cases for the Doppler API Key:

Secure Access: The Doppler API Key is used to securely access and interact with the Doppler API, allowing developers to manage their secrets and configurations.
Integration with Applications: Developers can use the Doppler API Key to integrate their applications with Doppler, enabling secure access to sensitive information such as API keys, database credentials, and more.
Automated Workflows: The Doppler API Key is essential for setting up automated workflows that require access to secrets stored in Doppler, ensuring that sensitive information is securely managed and accessed only by authorized systems.

1. Code snippets to prevent Doppler API Key hardcoding using environment variables

Using environment variables for storing sensitive information like API keys, such as the Doppler API Key, is a secure practice for several reasons:

Environment variables are not hard-coded in the codebase, reducing the risk of accidental exposure through version control systems or code sharing.
Environment variables are stored outside of the codebase, making it harder for attackers to access them directly.
Environment variables can be easily managed and updated without changing the code, enhancing security by enabling quick key rotation.
Environment variables can be encrypted or obfuscated, adding an extra layer of protection to sensitive information.

How to secure your secrets using environment variables

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import os

doppler_api_key_apikey = os.getenv('DOPPLER_API_KEY_APIKEY')

2. Code snippet to prevent Doppler API Key hardcoding using AWS Secrets Manager

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

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import botocore 
import botocore.session 
from aws_secretsmanager_caching import SecretCache, SecretCacheConfig 

client = botocore.session.get_session().create_client('secretsmanager')
cache_config = SecretCacheConfig()
cache = SecretCache( config = cache_config, client = client)

dopplerapikey = cache.get_secret_string('DOPPLERAPIKEY')

3. Code snippet to prevent Doppler API Key hardcoding using HashiCorp Vault

Using HashiCorp Vault for managing Doppler API Keys is a great way to enhance security. Here are code snippets in five different programming languages for securely handling a Doppler API Key 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 Doppler API Key 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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import hvac
import os

# Get the Vault URL and token from environment variables
VAULT_URL = os.getenv('VAULT_URL')
VAULT_TOKEN = os.getenv('VAULT_TOKEN')
VAULT_PATH = os.getenv('VAULT_PATH')

# Create connection
client = hvac.Client(url=VAULT_URL, token=VAULT_TOKEN)

# Read the secret
DOPPLER_API_KEY = client.secrets.kv.v2.read_secret_version(path=VAULT_PATH)['data']['data']['DOPPLER_API_KEY']

4. Code snippet to prevent Doppler API Key hardcoding using CyberArk Conjur

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

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import requests
import os


# CyberArk credentials
ID_TENANT_URL = os.getenv("ID_TENANT_URL")
PRIVATE_CLOUD_URL = os.getenv("PRIVATE_CLOUD_URL")
PAM_USER = os.getenv("PAM_USER")
PAM_PASS = os.getenv("PAM_PASS")


def get_auth_token() -> tuple[str, str]:
    url = f"{ID_TENANT_URL}/oauth2/platformtoken"
    response = requests.post(
        url,
        data={
            "grant_type": "client_credentials",
            "client_id": PAM_USER,
            "client_secret": PAM_PASS,
        },
    )  # Use verify=True in production
    if response.status_code == 200:
        data = response.json()
        return data["token_type"], data["access_token"]
    else:
        raise Exception(
            f"Failed to authenticate: {response.status_code} {response.text}"
        )


def get_account_id(account_name: str) -> str:
    token_type, access_token = get_auth_token()
    url = f"{PRIVATE_CLOUD_URL}/PasswordVault/API/Accounts"
    headers = {"Authorization": f"{token_type} {access_token}"}
    response = requests.get(url, params={"search": account_name}, headers=headers)
    if response.status_code == 200:
        accounts = response.json()["value"]
        return accounts[0]["id"]
    else:
        raise Exception(
            f"Failed to get account: {response.status_code} {response.text}"
        )


def get_secret(secret_name: str) -> str:
    token_type, access_token = get_auth_token()
    account_id = get_account_id(secret_name)
    url = (
        f"{PRIVATE_CLOUD_URL}/PasswordVault/API/Accounts/{account_id}/Password/Retrieve"
    )
    headers = {"Authorization": f"{token_type} {access_token}"}
    response = requests.post(
        url, json={"reason": "automatic retrieval"}, headers=headers
    )
    if response.status_code == 200:
        return response.text
    else:
        raise Exception(f"Failed to get secret: {response.status_code} {response.text}")


DOPPLER_API_KEY = get_secret("DOPPLER_API_KEY")

How to generate a Doppler API Key?

To generate a Doppler API Key, follow these steps:

Log in to your Doppler account.
Go to the "Settings" section.
Click on "API Keys" in the menu.
Click on the "Generate API Key" button.
Give your API Key a name for easy identification.
Click on "Generate" to create the API Key.

Your newly generated API Key will be displayed on the screen. Make sure to copy and securely store it as it will be needed to authenticate your requests to the Doppler API.

My Doppler API Key leaked, what are the possible reasons?

There are several reasons why a Doppler API Key might have been leaked:

Improper storage: Storing API keys in plaintext files or hardcoding them in code increases the risk of exposure.
Accidental sharing: Developers may inadvertently share API keys in publicly accessible repositories or through communication channels.
Insufficient access controls: Inadequate access controls can lead to unauthorized access to API keys.
Phishing attacks: Hackers may use social engineering tactics to trick developers into revealing their API keys.
Compromised systems: If the systems where API keys are stored are compromised, the keys can be easily accessed by attackers.

What are the risks of leaking a Doppler API Key

When it comes to the risks of leaking a Doppler API Key, developers must understand the following:

An exposed Doppler API Key can be used by malicious actors to access sensitive data and resources stored in the Doppler environment.
Leaking the API Key can lead to unauthorized access to confidential information, compromising the security and integrity of the application.
Attackers can use the leaked API Key to make unauthorized API calls, potentially causing financial loss or reputation damage to the organization.
Once an API Key is exposed, it can be difficult to track and revoke its access, making it crucial to protect it from the beginning.

Doppler API Key security best practices

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

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

Doppler API Key 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 Doppler API Key was used by malicious actors

Review Access Logs: Check the access logs of your Doppler API Key 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 Doppler API Key. This can give insights into any unauthorized use of your key.

Steps to revoke the Doppler API Key

Generate a new Doppler API Key:

Log into your Doppler API Key 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 Doppler API Key:

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.

How to understand which services will stop working

Inventory of services: keep an inventory of all services and applications that utilize your Doppler API Key.
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.

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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