Cloud Penetration Testing

If your business utilises cloud services and applications to support day-to-day operations, security is of paramount importance and should include a robust security assessment programme.
Cloud pen testing is designed to gauge the effectiveness of security controls and identify, safely exploit and help to eliminate vulnerabilities before they are compromised by malicious adversaries. Our range of custom cloud security assessments can help your organisation overcome these challenges by uncovering and addressing vulnerabilities that could leave critical assets exposed.


What are the cloud pen testing methods?

There are three categories of cloud penetration testing, each serving different purposes based on the specific needs and requirements of the system(s) being assessed. Regardless of the type, all forms involve testers emulating attackers to uncover genuine and exploitable weaknesses in the system.

Transparent box testing

Testers possess administrative-level access to the cloud environment, providing them with comprehensive knowledge and access to the system(s) they aim to compromise. This allows for a deep understanding of the system's intricacies.

Semi-transparent box testing

Testers have partial knowledge about the system(s) they are attempting to hack. While they may not possess full access or understanding, they have some insights that enable them to assess vulnerabilities and potential exploits.

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Opaque box testing

Testers commence their testing activities with no prior knowledge or access to the cloud systems. This simulates a scenario where the testers have no information about the system, replicating the perspective of an external attacker.

Cloud penetration testing helps to:

    Identifying unknown vulnerabilities, threats, and gaps in the system: By conducting penetration testing, organisations can discover vulnerabilities that were previously unknown. This allows for prompt mitigation and ensures a more robust security posture.
    Understanding the impact of exploitable vulnerabilities: Through testing, the potential consequences of exploiting identified vulnerabilities can be assessed. This knowledge helps organisations gauge the severity and potential impact of a successful attack, allowing them to prioritise security measures accordingly.
    Determining how to leverage any access obtained via exploitation: Penetration testing assists in understanding the extent to which an attacker can exploit identified vulnerabilities. This information helps organisations comprehend the possible paths an attacker may take and develop effective countermeasures.
    Providing security advice and recommendations: After completing penetration testing, experts can provide valuable insights and recommendations to strengthen the system's security. This enables organisations to implement robust security measures based on the identified weaknesses and potential attack vectors.

Cloud vulnerabilities

Our range of cloud security assessments are designed to identify some of the biggest and most common threats to cloud environments, including:

    Authentication flaws
    Unpatched vulnerabilities
    Application misconfigurations
    Weak identities and credentials

    Advanced Persistent Threats (APTs)
    Poor password management
    Insufficient log management
    Insecure interfaces and APIs

Why do you need to choose ESKA for your pentest? 

Still have some hesitations whether cooperation with us is worth the trouble? Check 10 reasons why you should choose us among other companies!


We have 8+ years of experience in the Cybersecurity market.


We have certified experts who are ready for the most difficult challenges.


We are trusted by more than 200 companies (including Governments and international corporations).

Up to date

We always discover the cyber security market and use the most modern technics and tools.

Team work

We are the team and we always work shoulder to shoulder that's why we are flexible and scalable.


ESKA that's not just a contractor it is your partner, that's why we are always ready to help in the future. If it's needed we can provide a developer who can fix your vulnerability. We always focused on the relationships and on the customer success!


We don't provide just a report with an incomprehensible list of issues. We always manual check the vulnerability and explain in what way and how to close it, give road map and recommendations.


We are Ukrainian company - Ukraine today faced with the most strong cyberwar and in this war, we are getting the best experience.

Clients that secure with ESKA


Workflow how our white hackers work

A penetration test is usually roughly divided into five phases:

Phases 2 - 4 are usually repeated several times.The actual penetration test usually begins with a tool-based scan of the network.

Methodologies we use

  • Stage 1. Preparation

    Research of all artifacts and resources related to the customer (domain names, IPs, 3d party resources) including from Darknet.Сoordination of test objectives, scope, test methods, and devices.

  • Stage 2. Scanning phase

    At this stage, we are looking for open paths to computers and resources. The system is "touched" for the first time. Here we are attempting to obtain information from different sources.

  • Stage 3. Enumeration

    This phase often runs at the same time as stage 2. Its goal is to get real, useful information through the security check. To carry out the attacks successfully, it is necessary to obtain the most accurate information possible about the system. At this stage, we search for suitable exploits, conduct detailed network analysis, hash cracking, and coordinate further attacks.

  • Stage 4. Exploit phase

    The vulnerabilities found must now be exploited to carry out real attacks on the system. In this way, existing security gaps and weak points are revealed. Here we conduct the verification tests (exploitation of vulnerabilities, circumvention of security measures and active intrusion, man-in-the-middle attacks, post-exploitation, etc.)
    Then we repeat levels 2 to 4.

  • Stage 5. Evaluation and reporting

    To be able to realistically assess the actual security situation, a detailed and comprehensive report is necessary. Management can derive appropriate measures from the management reports to achieve proper IT security. During the final analysis, we evaluate and document the results, make the summary and presentation, and listing of weak points, and give recommendations for countermeasures.

  • Stage 6. Post-implementation review

    We will provide specific recommendations for your further actions required and support you in their implementation if needed. We will check all corrections and improvements to make sure that our recommendations work in right way.

What do you get in the result?

Cloud penetration testing is an invaluable tool in enhancing the security of cloud systems. By identifying vulnerabilities, understanding their impact, determining exploitation leverage, and receiving expert guidance, organisations can build a more resilient and secure environment.How secure computer systems and networks are can only be found out through realistic IT penetration tests, which reveal all possible gaps. After we complete a penetration test, we would uncover your security gaps before the hackers get to exploit them. As a result:

    You will receive an assessment of the vulnerabilities found according to their risk.
    IT security would be either increased or confirmed – from a technical and organizational point of view.

We will discuss specific recommendations for your further actions required and support you in the further procedure even after the review.


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