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Raising the Shield: Ensuring Resilient Security Through Cloud Application Testing

January 15, 2024 41 0 Cloud Computing

Raising the Shield: Ensuring Resilient Security Through Cloud Application Testing

The cloud computing landscape has revolutionized the way businesses operate, offering scalability, agility, and cost-effectiveness. However, this shift towards cloud-based infrastructure has also introduced new security challenges. Cloud environments are inherently more complex and distributed, making them more susceptible to cyberattacks. Hence, security testing in the cloud has become an indispensable aspect of cloud security management. In the era of cloud-centric operations, safeguarding cloud-based applications has become imperative. This paper comprehensively explores the best practices for security testing in the cloud, providing a roadmap for organizations to fortify their cloud-based assets against potential threats.

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Cloud Computing Testing

Problem Statement 

As organizations increasingly migrate their critical data and applications to cloud environments, there is a growing recognition of the need for robust cloud security measures. The dynamic nature of cloud computing introduces unique challenges and vulnerabilities that have the potential to compromise the confidentiality, integrity, and availability of sensitive information. The current state of cloud security is characterized by several pressing issues that demand comprehensive solutions 

1. Data Breaches and Unauthorized Access 

2. Insufficient Encryption Practices 

3. Inadequate Incident Response and Monitoring 

4. Third-Party Security Risks 

5. Lack of Standardized Security Best Practices 

 
Background 

 
Security testing in the cloud entails evaluating cloud-based applications and their associated infrastructure for vulnerabilities and potential security weaknesses. This process encompasses various techniques, including penetration testing, vulnerability scanning, and static code analysis. The objective of security testing in the cloud is to identify and remediate vulnerabilities before they can be exploited by attackers, thereby minimizing the risk of data breaches, financial losses, and reputational damage. 

 

 
Proposed Solution 
 
Cloud services are employed for various purposes in corporate environments, ranging from storing data in services like Box, accessing productivity tools through Microsoft 365, to deploying IT infrastructure in Amazon Web Services (AWS). In all these applications, organizations leverage cloud services to enhance their operational efficiency, promoting agile technology adoption often at a reduced cost. However, the utilization of any cloud service brings forth challenges and risks related to data security in the cloud. The responsibility for securing data created in the cloud, transmitted to the cloud, and retrieved from the cloud lies with the cloud customer. Safeguarding cloud data necessitates visibility and control. The subsequent steps outline a core set of best practices for cloud security, providing guidance to enterprises in achieving a secure cloud environment and addressing cloud security concerns. 

Phase 1: Understand cloud usage and risk 

Step 1: Identify sensitive or regulated data. 

The largest area of risk involves the loss or theft of data resulting in regulatory penalties or intellectual property loss. Data classification engines can categorize data, allowing companies to fully assess these risks. 

Step 2: Understand how sensitive data is being accessed and shared.  
Sensitive data can be securely held in the cloud, but companies must monitor who accesses it and where it goes. Assessing permissions on files and folders of the cloud environment, along with access context like user roles, user location, and device type, is crucial. 

Step 3: Discover shadow IT (unknown cloud use). 

Most individuals do not consult their IT team before signing up for a cloud storage account or converting a PDF online. Utilize web proxy, firewall, or SIEM logs to discover unknown cloud services in use, and then assess their risk profiles. 

Step 4: Uncover malicious user behavior. 

Both careless employees and third-party attackers can exhibit behavior indicating malicious use of cloud data. User behavior analytics (UBA) can monitor anomalies and mitigate both internal and external data loss. 

Phase 2: Protect your cloud 

Step 1: Apply data protection policies. 

With data classified as sensitive or regulated, assign policies governing what data can be stored in the cloud. Quarantine or remove sensitive data found in the cloud and coach users in case of policy violations. 

Step 2: Encrypt sensitive data with your own keys. 

While encryption available within a cloud service protects data from outside parties, the cloud service provider still has access to encryption keys. Encrypt data using your own keys for full control while allowing users to work with the data seamlessly. 

Step 3: Set limitations on how data is shared to managed and unmanaged devices. 

Enforce access control policies from the moment data enters the cloud, setting user or group permissions and controlling external sharing through shared links. 

Step 4: Apply advanced malware protection to infrastructure-as-a-service (IaaS) such as AWS or Azure. 

In IaaS environments, where security responsibilities lie with the user, apply anti-malware technology to the operating systems, applications, and network traffic. Deploy application whitelisting, memory exploit prevention for single-purpose workloads, and machine-learning-based protection for general-purpose workloads and file stores. 

 

Benefits, Cost and risk effective security solution
Benefits, Cost and risk effective security solution 

Why is Cloud Security Testing important? 

Cloud security testing is one of the most important things you need to ensure companies cloud infrastructure is safe from hackers. As the cloud computing market is growing rapidly, there is a growing need for application security solutions for the cloud to ensure that businesses are protected from cyber-attacks. Cloud security testing helps to identify potential security vulnerabilities due to which an organization can suffer from massive data theft or service disruption. Cloud security testing is useful for both organizations and cloud security auditors. Companies can use cloud security testing to identify vulnerabilities that hackers can exploit to compromise cloud infrastructure. Cloud security auditors can use cloud security testing reports to validate the cloud infrastructure security posture. Nowadays, all or most of the applications are hosted in the Cloud. Security is one of the major problems for applications. The main objective of Cloud-based security is to stop any threat or malware from accessing, stealing, or manipulating any of our confidential data. It identifies the threats in the system and measures its potential vulnerabilities. Also, it helps in detecting any security risks in the system and helps developers in fixing those problems through coding. Cloud-based Application Security Testing gives the feasibility to host the security testing tools on the Cloud for testing. With this process, tools on the Cloud can test the applications. Previously, in traditional testing, companies need to have on-premises tools and infrastructure. Now, enterprises are adopting Cloud-based testing techniques, which make the process faster, and cost-effective. 

Types of Testing Performed in Cloud 

Testing in a cloud ensures that functional needs are met and emphasis the needs to be placed on nonfunctional testing. Here are several types of testing performed in the Cloud: 

Types of Cloud Security Testing

Functional Testing: It ensures requirements are satisfied by the application. 

System Testing: This technique evaluates requirements & functionalities from end-to-end perspective. 

Acceptance Testing: It ensures that the software is ready to be used by an End-User. 

Non-functional Testing: This testing is to ensure that the expected requirements are met, including Quality of service, Usability, Reliability, and Response time. 

Security Testing: It examines the app and ensures six basic principles - Authorization, Availability, Confidentiality, Authentication, Integrity, and Non-repudiation. 

Scalability and Performance Testing: These testing helps to understand the system behavior under a certain expected load. 

Compatibility Testing: It ensures compatibility with various cloud environments and instances of different operating systems. 

Disaster Recovery Testing: Recovery Testing allows to evaluate disaster recovery time & ensure that the application is available to the user again with minimum data Loss 

Multi-Tenancy testing: This testing refers to software architecture in which its single instance runs on server & serves multiple tenants. In this testing, cloud environment aims at providing a dedicated share of the instance to every tenant including, tenant individual functionality, data, user management, configuration, and non-functional properties 

A wide range of testing tools is used in the testing of cloud-based applications. Some of them are as follows: 

SOASTA CloudTest: CloudTest is one of the largest, highly scalable, and global load testing platforms that help you to quickly validate if your project is ready for success. 

OWASP ZAP (Zed Attack Proxy): It is an open-source security testing tool designed to find vulnerabilities in web applications and it provides automated scanners as well as various tools for manual testing. 

LoadStorm: Load Storm has a simple user interface. It can generate scripts representing different user types and allocate the right volume to each. 

BlazeMeter: Blaze Meter is delivered as a self-service web application for developers and Quality Assurance (QA) professionals providing a comprehensive easy-to-use load and performance testing solution. It can even generate a report on the most complex load testing requirements and environments. 

Nessus: This cloud-testing tool can be used to detect misconfigurations, vulnerabilities, and missing patches. This cloud-testing tool is a boon for banking and healthcare industries as it can generate an audit report as well. This tool is one of the most widely used testing tools and its benefits are not just limited only to healthcare and banking but for other industries as well. 

Burp Suite: it is a comprehensive platform for web application security testing. It includes features for scanning, crawling, and analyzing web applications for security vulnerabilities 

App Perfect: This tool concentrates on Cloud testing for web applications, wherein we can do functional tests and load tests for web applications using real traffic over the Internet. We can test web applications on different browsers, hardware, and operating system combinations by using the Cloud Testing framework. We can design, develop, and execute your tests using the company's servers over the cloud infrastructure. 

Watir: As it is an open-source and effective tool, you do not have to spend anything to use it. It consists of Ruby libraries, which makes the tool more user-friendly and powerful. 

Conclusion

Security testing in the cloud represents a crucial element in the cloud security strategy of any organization. Through the adoption of a comprehensive and proactive approach to cloud security testing, organizations can proficiently recognize, prioritize, and address vulnerabilities before potential exploitation. This process aids in safeguarding digital assets, ensuring compliance, and cultivating trust among customers and partners within the dynamic digital landscape. 
 

References


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