No API designer wants to design or implement a bad API, right? However, we all might be easily drawn by shortcuts in order to reach sprint timelines and deploy an API. Bear in mind that shortcuts will only lead you to an unwanted situation – developing an unsecure API. If you as a developer ignore eventual vulnerabilities within an API, you will produce a perfect background for malicious activities. What can you do to avoid these actions and develop a secure and reliable API? If you ask what is the solution here, you might want to think about Stoplight’s API tools that inhibit potential API vulnerabilities and prevent malicious activities.
Identify Those Vulnerabilities
As we mentioned above, every API might contain some vulnerabilities, but you should clear them out before deploying an API. Still, it is crucial for the provider to understand and implement the requirements of API’s users. Building an unsecure API is definitely a wrong way, but even high-secured APIs might be hard to use from the perspective of API users. In order to prevent your API’s vulnerabilities, you should find a fine balance between the ease of consumption and the purpose of your API.
Injecting Unintended Commands
Your API’s gateways serve as a connection with the world. However, some of the users might cause deleting, updating, dropping, or even creating arbitrary data available to your API. The most common security threat to your API is numerous injections – RegEX Injection, XML Injection, and AQL Injection.
APIs without protection
Building an API without protection through authentication is one of the biggest design failures that might seriously impact and threaten whole databases. It doesn’t matter if you have layer encryption (TLS), as lack of proper authentication might cause problems.
Debugging Issues
Your operation team and other teams should trace tools for debugging problems, so you get a clear view of all information. It would be best to encrypt a PCI cardholder data and Personal Health data, so you can track all data that is consumed.
From 2016 many developers realized that data encryption, especially sensitive data encryption, should be a top priority. That means that you should use tokens for card information and implement data masking for loggings.
Open APIs and incoming requests
If an API is open to the public face, it should have defense mechanisms against trustless incoming requests. In case an API recognizes an untrusted request, it will deny it, and in some cases let the user try again.
Attackers attempt to replay a user’s request until they become valid. Github accounts were attacked back in 2016 by reusing passwords and e-mail addresses from online services.
The great news is that you can take some countermeasures, such as to include rate-limiting policies, use sophisticated tools to analyze incoming requests, identify patterns etc. You can also incorporate HMAC timestamps to limit transaction validation and use two-step authentication.
Conclusion
In this article, we have reviewed some of the potential threats to your API and how to avoid them. It is very important to protect your API from malicious message content and mask encrypted data. A mistake with API security might cause significant consequences and that is the reason why business tend to get as safe as possible. The point is – put some effort to make your API more secure, invest in API design, and establish governance policies to make the things run smoothly.
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