Cloud Security Testing

Defend Against the Latest Cybersecurity Threats with Expert Penetration Testing

Cloud Security Testing and Cloud Penetration Testing 

Cyber Legion’s Cloud Penetration Testing service is a critical assessment process designed to enhance the security of cloud-based applications and infrastructure. This service involves simulating real-world attacks by skilled security professionals to identify vulnerabilities, misconfigurations, and weaknesses within cloud environments. Our goal is proactive: to uncover potential security risks and offer recommendations for strengthening your cloud-based systems’ security posture, ensuring the confidentiality, integrity, and availability of your data and applications.

As a CREST Approved provider in EMEA, Cyber Legion not only offers state-of-the-art testing services but also follows a structured process to ensure comprehensive coverage and minimize risks.

AWS Security Testing

Amazon Web Services (AWS) offers a vast array of cloud hosting options, with over 90 different services available. These services encompass a wide range of areas, including compute and storage, content delivery, security management, network infrastructure, and physical hosting facilities for tenant organizations. These services are generally categorized into three main types: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

These virtual environments can be used for a variety of purposes, including internal organizational use, as a service to consumers, or a combination of both. The most popular uses include networking, data storage, web application services, and code development.

One of the key features of AWS is its security testing for user-operated services, which includes cloud offerings created and configured by the user. For example, an organization can thoroughly test their AWS EC2 instance, excluding tactics that could disrupt business continuity, such as launching Denial of Service (DoS) attacks.

AWS Security Testing
AWS Penetration Testing

AWS Penetration Testing

Penetration testing on Vendor Operated Services offered by Amazon Web Services (AWS) is limited to the evaluation of the cloud environment’s implementation and configuration, rather than the underlying infrastructure. This means that while services like CloudFront and API Gateway may be tested, the physical hosting infrastructure is off-limits.

One popular service that can be penetration tested on AWS is Elastic Cloud Computing (EC2). When conducting a pen test on an EC2 instance, common areas that are examined include the API (e.g. HTTP/HTTPS), web and mobile applications hosted by the organization, the application server and associated stack (e.g. programming languages such as Python or React), and virtual machines and operating systems.

It is worth noting that these are not the only areas that can be tested, but are commonly included in an AWS pen test.

Azure Security Testing

Microsoft no longer requires pre-approval to conduct a security tastings against Azure resources. This process is only related to Microsoft Azure, and not applicable to any other Microsoft Cloud Service.

The first step in Azure security testing is to understand how Azure is deployed on your end. Security management depends on the type of deployment. There are two types of deployment

  • Classis mode: You get a bundled cloud service, containing a virtual machine, load balancer, an external IP, and a network interface card.
  • Resource Management mode: You get all the cloud services bundled into a single entity. In this, you get a tool named Azure Resource Manager (ARM). As the name suggests, you can use this to better manage all your cloud services and apply security protocols in a standardized way. It also lets you apply role-based access control across all virtual resources in the group.
a laptop computer with a check mark and a phone

Azure Penetration Testing

Microsoft encourages users to pen-test their Azure services and report their findings to help in fixing and patching the security gaps. However, to protect their customer’s data and to avoid disruption in their services, users need to follow some rules while pen-testing.

The following steps are encouraged by Microsoft to conduct Azure penetration testing:

  • Create multiple test or trial accounts to test cross-account access vulnerabilities. However, using these test accounts to access other customer’s data is prohibited.
  • Running vulnerability scanning tools, port scan, or fuzz on your virtual machine.
  • Testing your account by generating traffic which is expected to match regular working periods and can also include surge capacity.
  • Try to break out of Azure services to access other customer assets. If any such vulnerability is found, you should inform Microsoft and cease any further tests.
  • Test Microsoft Intune to ensure all restrictions function as expected.

GCP Security Testing

Google cloud security testing is a mandatory process for organizations that are seriously considering cloud deployment.

Cloud penetration testing is a unique network penetration testing that focuses on cloud applications and infrastructure security. The goal of cloud penetration testing is to test for cloud application vulnerabilities that may impact the security of the organization’s internal network. Google Cloud Platform (GCP) is one of the widely used cloud platforms, and it’s equally important to understand how to keep it secure.

For a security testing to be effective, it needs to be comprehensive. That means testing not just the application but also the underlying cloud infrastructure. It also means testing the whole system, including the cloud, to ensure there are no weak spots.

cyber security is a term that is used to describe the protection of information and data from unauthorized

GCP Penetration Testing

Penetration testing is an integral part of any security program, but it’s even more critical in the cloud. That’s because cloud environments are shared resources that sit outside an organization’s firewall. 

The importance of google cloud penetration testing is not limited to this; here are few more points to understand the purpose of pen testing:

  • Identify security vulnerabilities
  • Identify broken access controls
  • What all things hackers can get from your google cloud?
  • Real-life exploitation of security risks and vulnerabilities.
  • Standard best practices to prevent security risks.

Cloud Security Threats

Insecure APIs: Application programming interfaces or APIs enables companies to share their applications data and functions with third-party companies. API keys are used for identifying and authenticating between companies and third parties. If we don’t protect our API keys, someone can gain access to them. API services are commonly used, and insecure APIs can lead to severe data leaks. To prevent these cases, don’t embed API keys into code, and keep them in a safe place where unauthorized people can’t access them. In addition, for all our API services, there should be an authentication/authorization mechanism to prevent broken access control.

Outdated software: If our software is outdated, this may cause some major security issues like data leaks or credentials leaks. Make sure that the software in use is the latest version. One of the reasons to update these applications is to prevent getting damaged security flaws in the old versions that need to be solved. For this reason,  the threat should be removed by updating your programs.

Misconfigurations on the cloud: According to the research, between February 2018 and June 2019, 90% of all Cloud-based security issues were due to misconfigurations. There is always a story in the news about a big company being subject to a data leak or disclosing a breach of privacy. While these may occur on the Cloud, the root cause is nearly always a case of human error on the company’s configuration side.

Stolen credentials: Credentials may leak in some way or can be hardcoded in the application. This may cause our credentials to be stolen. We should not share our credentials such as the access key, secret access key, or API keys in the codebase. That’s basically like giving our master key to a stranger.

Access privileges: There is a concept in the cloud called “the least privilege principle”. That means giving the user the least amount of privileges to do their job. If we give them excessive privilege and the account gets hacked or stolen, this may lead to serious problems. To prevent them, we should always give the least amount of privilege to the users. For more information, check out the Google Cloud Platform approach for least privilege.

Cloud Security Threats

Cloud Penetration Testing Authorization and Policies

We should always check the cloud providers’ service policies. The tables below visualize AWS’s policy on what we can and can’t test:

AWS allows penetration testing on:

  • Amazon EC2 instances, NAT Gateways, and Elastic Load Balancers
  • Amazon RDS
  • Amazon CloudFront
  • Amazon Aurora
  • Amazon API Gateways
  • AWS Lambda and Lambda Edge functions
  • Amazon Lightsail resources
  • Amazon Elastic Beanstalk environments

Users can perform penetration testing on these services without any issues.

Challenges of the Cloud Pentesting

No classic way: There is no standard way of performing cloud pen testing. It all ties to the client and what they want.

Different technology, different cases: Cloud pen testing process is often performed on different cloud providers and different technologies depending on the clients. That’s why we need to know which cloud services are used and what are possible security misconfigurations, and the vulnerabilities related to these services. Knowing all cloud services can be challenging for pen testers.

Different pen testing policy: Every cloud provider has their own policy for pen testing. Because of that, the cloud pen testing process could change depending on the provider. For some of the services, we may have to notify the providers before pen testing.

cyber security is a term that is used to describe the protection of information and data from unauthorized

Cloud Security Controls

  • Governance and Risk Assessment

    Define and understand the framework for managing risk, asset identification, and usage policies to ensure a secure cloud environment

  • Policy and Access Management

    Develop access control policies and procedures for managing and revoking permissions, emphasizing the importance of clear IT security guidelines

  • Network Security

    Implement strategies for network management and security, including controls and isolation practices to safeguard against unauthorized access

  • Defense Strategies

    Deploy layered defense mechanisms against DDoS attacks and malicious code, ensuring robust protection for cloud services

  • Data Encryption and Protection

    Focus on encryption practices for data at rest and in transit, including secure management of SSL keys and PIN protection

  • Access Controls

    Secure console and API access, manage IPSec tunnels, and enforce strict controls over access points to prevent breaches

  • Monitoring and Logging

    Establish comprehensive logging and monitoring frameworks to detect anomalies, with centralized log storage for better insight into security events

  • Intrusion Detection

    Implement and maintain intrusion detection systems, with a clear strategy for responding to and mitigating detected threats

  • Documentation and Inventory

    Maintain up-to-date documentation and inventory of assets, policies, and security measures, ensuring accountability and easy access to information

  • IAM Oversight

    Regularly review IAM credentials and reports to prevent unauthorized access, aggregating data from multiple sources for a complete security overview


Cloud penetration testing, often referred to as cloud pen testing, is a security assessment method specifically designed for environments hosted in cloud platforms like Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), and others. This type of testing involves simulating cyberattacks against a cloud-based system to identify vulnerabilities and security weaknesses before malicious attackers can exploit them.

The primary goal of cloud penetration testing is to ensure the security of cloud-hosted applications, data, and services by identifying and addressing potential vulnerabilities. This process helps in enhancing the security posture of cloud environments, making them more resilient against cyber threats.

Cloud penetration testing encompasses several key aspects, including but not limited to:

  • Assessment of Cloud Configuration: Reviewing and testing the configuration of the cloud environment to ensure that it is set up securely and in accordance with best practices.
  • Application Security Testing: Identifying security issues within applications hosted in the cloud, such as injection flaws, broken authentication, and insecure deserialization.
  • Network Security Testing: Evaluating the security of the cloud environment’s network architecture, including the inspection of firewalls, intrusion detection systems, and other network security controls.
  • Access Controls Testing: Verifying that access controls are properly implemented and effective in restricting unauthorized access to cloud resources.
  • Data Encryption and Storage Security: Assessing the mechanisms in place for encrypting data at rest and in transit, as well as the security of data storage solutions.


Given the shared responsibility model in cloud computing, where both the cloud service provider (CSP) and the customer share responsibilities for different aspects of security, it’s crucial for organizations to clearly understand their responsibilities. They must ensure comprehensive coverage of their cloud assets and data through regular penetration testing.

Moreover, cloud penetration testing should be conducted in accordance with the rules and guidelines provided by the CSP, as unauthorized testing activities could violate the terms of service and potentially disrupt services not only for the testing entity but for other customers of the cloud provider as well.

Cloud Security Testing Service FeaturesSupported
Comprehensive Cloud Infrastructure Assessment
Identity and Access Management (IAM) Best Practices Evaluation
Configuration and Compliance Auditing against AWS, Azure, GCP Standards
Automated Security Scanning for Cloud Resources
Serverless Architecture Security Assessment
Container Security Testing (Docker, Kubernetes)
Data Encryption and Protection Mechanisms Validation
Network Security and Segmentation Testing
Compliance with SOC2, ISO27001, HIPAA in Cloud Environments
Hacker-Style Offensive Pentest for Cloud Services
Adherence to Cloud Security Alliance (CSA) Best Practices
Executive and Technical Reports with Cloud Focus
Continuous Cloud Security Monitoring and Alerting
Collaboration with Cloud Architects and Security Stakeholders
Checks against Baseline Security Requirements for Cloud

The OWASP Security Knowledge Framework is an open source web application that explains secure coding principles in multiple programming languages. The goal of OWASP-SKF is to help you learn and integrate security by design in your software development and build applications that are secure by design.

API’s have increasingly become a target for hackers and malicious users over the years. Improper security can lead to massive data breaches and loss of user data which can go undetected due to the API being abused in a way that seems normal.

API security testing can provide several benefits, including:

  1. Identifying vulnerabilities: API security testing helps identify any vulnerabilities that could potentially compromise the security of your system.

  2. Improving data security: By testing for security vulnerabilities, you can ensure that sensitive data is protected from unauthorized access.

  3. Meeting compliance requirements: Many industries have strict compliance requirements, and API security testing can help ensure that your system meets these requirements.

  4. Protecting against cyber attacks: API security testing can help prevent cyber attacks by identifying and fixing vulnerabilities that could be exploited by hackers.

  5. Enhancing user trust: By ensuring the security of your system, you can build trust with your users and improve customer satisfaction.


Penetration tests (or pen tests) are attacks on your companies’ software and hardware systems, carried out by ‘ethical hackers’ to expose your system’s vulnerabilities. One example is a web application pen test. Web apps, browsers and plug-ins can house sensitive financial or personal data, so hackers are increasingly putting their efforts towards gaining access to them. The test would examine the endpoint of every web application.

The time that penetration testing takes depends on the size and complexity of your organization’s system structure, as well as the scope of the test itself. For the ‘average’ company, a network penetration test should take around three days. For a merchant processing millions of credit cards a year, for example, a pen test will take over a week, or possibly two.

The penetration testing cost depends on the facts identified during scoping, such as the agreed time, goals, technical resources, approach, and remedial support.

Security Testing Pricing list refence 

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Cyber Legion convert threats into trust by leveraging Advanced Technology and Expertise in Product Security and Business Continuity. Our approach integrates Secure by Design, comprehensive Security Assurance, Red Teaming, Adversary Emulation and Threat Intelligence, Penetration Testing, and Expert Security Advisory and Consultancy. We ensure compliance with meticulous security assurance and detailed documentation, from design to post-market.

As a CREST-certified Penetration Testing provider in the EMEA region, we are committed to the highest security standards.Cyber Legion - CREST Approved