Why API Security Should Be Your First Step in Protecting Your Cloud Apps

By DOUG DOOLEY

In today’s world, almost all modern applications rely on APIs to exchange data and interact with external systems. With the increasing adoption of cloud computing, the usage of APIs has grown exponentially, making API security a top priority for organizations that want to protect their cloud-based applications. API security should be one of the first steps towards securing cloud apps because APIs are the primary entry point for hackers to exploit vulnerabilities in cloud-based applications.

APIs are the data transporters for all cloud-based applications and services. APIs act as intermediaries between applications, enabling them to communicate with each other and exchange data. They also provide access to critical services and functionality in your cloud-based applications. If an attacker gains access to your APIs, they can easily bypass security measures and gain access to your cloud-based applications, which can result in data breaches, financial losses, and reputational damage. For hackers looking to have the best return on investment (ROI) of their time and energy for exploiting and exfiltrating data, APIs are one of the best targets available today.

API security is critical because APIs are often the weakest link in the security chain. Developers often prioritize speed, features, functionality, and ease of use over security, which can leave APIs vulnerable to attacks. Additionally, cloud-native APIs are often exposed directly to the internet, making them accessible to anyone. This can make it easier for hackers to exploit vulnerabilities in your APIs and gain access to your cloud-based applications.

If the above warnings are not enough, here are a few more reasons to convince you why API security should be your first step in cloud security:

• PII: APIs often expose sensitive data to external systems, making them a prime target for attackers looking to steal data. By securing your APIs, you can prevent unauthorized access to your sensitive data and protect it from data breaches. This is particularly important for organizations that deal with sensitive data such as financial, health, or personally identifiable information (PII).
• Hackers: APIs are often targeted by cybercriminals who use a variety of techniques to exploit vulnerabilities in APIs and gain access to cloud-based applications. By securing your APIs, you can mitigate the risk of cyberattacks and prevent hackers from exploiting vulnerabilities and increase your cloud security hygiene.
• Compliance & Audit: Many industries are subject to strict regulatory compliance requirements such as HIPAA, PCI-DSS, and GDPR. By securing your APIs, you can improve compliance with these regulations and avoid costly fines and legal action.
• Data Breaches: A data breach can cause significant damage to an organization’s reputation. By securing your APIs, you will help to prevent data breaches and exploits on your cloud-native applications, protecting your organization’s reputation and building trust with your customers.
• With that said, there are a few important recommended measures for organizations to secure their APIs, protect their cloud-based applications, and improve overall cloud security.
• Auth: API authentication and authorization are critical components of API security. Authentication ensures that only authorized users can access your APIs, while authorization controls what actions authorized users can perform. Implementing strong authentication and authorization mechanisms can help prevent unauthorized access to your APIs and protect your cloud-based applications.
• Encryption: Leveraging best practices in encryption is an essential component of API security. It ensures that data transmitted between systems is secure and cannot be read by hackers if intercepted. Using SSL/TLS encryption for your APIs can help protect against data breaches and ensure that sensitive data is transmitted securely.
• Inventory: IT Security’s number one mistake is underestimating how difficult it is to get an accurate system of record of all their APIs because of the ephemeral nature of cloud services. API discovery, monitoring and logging, particularly with always-on runtime capabilities, can help detect and prevent attacks on your APIs. By monitoring dynamic API usage and traffic and logging events, you can detect suspicious activity and take action before an attack.
• Protection: Finally, API run-time protection can help prevent attacks such as BOLA, DDoS and brute force attacks. Broken object level authorization (BOLA) attacks strike at the heart of the business logic within an application. Adding customized checks and policies that block API requests that attempt to break business logic can help prevent exploitation. Rate limiting restricts the number of API calls that can be made within a specific time frame, while throttling limits the rate at which requests can be made – together both can help with brute force and denial of service attacks.

With these critical cloud security requirements in mind, organizations have a number of technologies at their disposal, an alphabet soup of acronyms if you will. Different than on-premises protections, securing cloud-native APIs involves a continuous set of processes focusing on identifying, assessing, prioritizing, and adapting to risk in cloud-native applications, infrastructure, and configuration.

When it comes to securing APIs, Cloud Native Application Protection Platform (CNAPP) is a newer security framework that provides security specifically for cloud-native applications by protecting them against various threats, such as web-application attacks, API attacks, and cloud compute, storage, and database attacks. CNAPPs provide runtime protection, vulnerability management, threat detection, and response capabilities.

They can identify vulnerabilities in API code and configurations and provide mitigation. Using a CNAPP allows organizations to implement complete end-to-end security for cloud-native environments, rather than having to stitch together multiple solutions that address specific, discrete security issues.

The strength of CNAPP is that it combines the capabilities of several cloud security categories, including DevSecOps, Cloud Security Posture Management (CSPM), Infrastructure-as-Code (IaC) scanning, Kubernetes Security Posture Management (KSPM), Cloud Infrastructure Entitlement Management (CIEM), and runtime Cloud Workload Protection Platform (CWPP). Additional CNAPP advantages include:

• Full-stack application visibility for SecOps and DevOps teams.
• Runtime response to threats to protect and secure cloud-native apps.
• Automated vulnerability management and cloud configuration remediation.
• Prioritization all security exposures on APIs, applications, data, and microservices.

In addition, CNAPP provides advanced insights that improve detection rates and reduce false positives. These insights can be generated by correlating posture misconfigurations with workload alerts or over entitlements. CNAPP helps address these problems and more by offering a single converged tool with multiple security capabilities for applications and services, so organizations can reduce risk, overhead and operational costs.

When it comes to cloud security, CNAPP is well suited for organizations with cloud-native applications, microservices, and APIs that require application-level security. API security is a must-have when building out cloud-native applications, and CNAPP offers an effective approach for this critical first step in protecting cloud applications.