Cloud penetration testing is an authorised attempt to break into the cloud systems and settings your business controls.
It shows whether an exposed service, weak identity, broad permission, vulnerable application or misconfigured storage creates a usable path. That path can end at your data or an administrator account.
The test follows an agreed scope and the provider’s rules. It does not target the underlying AWS, Azure or Google Cloud infrastructure.
For an Australian SMB, the report does two jobs. It tells your team what to fix first. It also gives clients, tender panels, certifiers or insurers dated evidence of what was tested.
The scope decides whether that evidence answers the business question in front of you. Let’s take a closer look.
What Is Cloud Penetration Testing?
Cloud penetration testing is a controlled test of whether someone can exploit weaknesses in the cloud resources your business owns or configures, which places it within offensive security, where testers simulate attacker behaviour instead of reviewing controls on paper.
It applies the purpose of a penetration test to AWS accounts, Azure tenants and subscriptions, and Google Cloud projects.
The tester you choose may examine identities, permissions, applications, APIs, virtual machines, containers, serverless functions and cloud storage. Where a public application sits in scope, that part of the work overlaps with web application penetration testing, which targets application logic, authentication and API behaviour rather than the cloud account around them.
Cloud testing puts extra attention on identity and control-plane access. For example, a small permission error can link a public application to a workload identity, a secret store or sensitive data without relying on a traditional network vulnerability. That chain is how a single configuration mistake becomes a data breach rather than an isolated finding.
The shared responsibility model sets the testing boundary:
| Cloud model | Customer-controlled areas commonly tested |
|---|---|
| Infrastructure as a service (IaaS) | Identities, network rules, operating systems, workloads, applications and data |
| Platform as a service (PaaS) | Identities, service configuration, applications, APIs and data access |
| Software as a service (SaaS) | Tenant settings, users, data sharing and integrations allowed by the provider |
A configuration review can flag risky settings such as public storage or excessive permissions. Penetration testing checks whether those settings create a usable attack path and what the tester can reach. If you need both jobs, put both in the proposal.
How Does Cloud Penetration Testing Work?
Cloud penetration testing moves through five controlled stages: scope, authorisation, discovery, validation and reporting with retesting.
As a reference, the PCI Security Standards Council penetration testing guidance groups the work into pre-engagement, engagement and post-engagement phases.
The point is simple: agree on the targets, testing method and permitted level of exploitation before anyone starts.
| Stage | What happens | What your team should confirm |
|---|---|---|
| 1. Define the job | Name the business service and question the test must answer | Which customer platform, data path, tender requirement or known risk is driving the test? |
| 2. Set scope and rules | List the cloud accounts, identities, applications, workloads, dates and exclusions | Who owns each target, which techniques are allowed and when must the tester stop? |
| 3. Map the environment | Discover public endpoints and authorised cloud relationships | Are private resources, trust paths and control-plane permissions included? |
| 4. Validate attack paths | Manually test whether separate weaknesses can be combined | How far can the tester go, and what proof is enough without collecting unnecessary data? |
| 5. Report and retest | Record the path, impact, evidence and fix, then verify remediation | How are urgent findings escalated, and is retesting included? |
That sequence is straightforward. The depth depends on two choices: the tester’s starting access and written scope, then the tools used to support the work.
Testing Methods and Scope
The testing method defines the tester’s starting access, while the written scope defines where they can go and what they can examine.
So you should start by choosing the access model that best reflects the attack scenario you want to test:
| Method | Starting point | Best use |
|---|---|---|
| Black box | No credentials or internal documentation | Testing public exposure from an unknown attacker’s perspective |
| Grey box | Limited credentials and selected context | Testing what a compromised user, developer or service account could reach |
| White box | Detailed architecture, configuration access and test accounts | Testing identity, workloads, applications and data paths across the agreed environment |
Grey-box or white-box testing is usually more useful when you need to assess identity controls or privilege-escalation paths, the same assumed-access premise behind internal penetration testing on a corporate network.
Black-box testing works well for public exposure, the same outside-in starting position used in external penetration testing. It will not show what a compromised account could reach unless you include that scenario in scope.
Once you choose the method, define the cloud layers in scope.
But, a label such as “AWS cloud penetration testing” is too broad because it does not show whether the tester will assess identities, applications, storage, workloads or delivery paths.
Break the scope into these areas:
| Scope area | What to name in the proposal |
|---|---|
| Identity and control plane | Users, roles, service principals, service accounts, MFA, access keys and trust policies |
| Applications and public exposure | Domains, public IPs, load balancers, management interfaces, applications and APIs |
| Storage and data | Buckets, blob containers, databases, snapshots, resource policies and cross-account access |
| Workloads | Virtual machines, containers, Kubernetes, serverless functions, metadata services and runtime identities |
| Hybrid and delivery paths | VPNs, peering, CI/CD pipelines, infrastructure-as-code and secret stores |
Your scope must also follow each provider’s testing rules:
- AWS permits testing of listed customer resources without prior approval. You cannot test AWS infrastructure or the AWS services themselves. Command-and-control testing requires prior approval.
- Microsoft Azure does not require pre-approval for testing Azure resources. The tester must still follow Microsoft’s rules of engagement.
Check the current policy for every provider and SaaS platform in scope. Written permission to test your tenant does not authorise you to test the provider’s service or another tenant.
Tools Used in Cloud Penetration Testing
Cloud penetration testing tools speed up discovery and make repeatable checks easier. The tester must still confirm whether a weakness creates a usable attack path, the step that separates the engagement from a vulnerability assessment, which records known weaknesses without proving they can be exploited.
Each tool category supports a different part of that work:
| Tool category | Examples | Job in the test |
|---|---|---|
| Provider interfaces | AWS CLI and APIs, Azure CLI and Resource Manager, Google Cloud CLI and APIs | Map authorised resources, identities, policies and relationships |
| Public service and application testing | Nmap, Burp Suite and OWASP ZAP | Inspect exposed services and test web applications and APIs |
| Configuration assessment | Prowler and Scout Suite | Identify risky settings and establish the initial attack surface |
| Identity and attack-path analysis | Pacu for AWS and AzureHound with BloodHound for Azure and Entra ID | Analyse permissions, trust relationships and privilege-escalation paths within the approved scope |
| Workload and delivery testing | Container, Kubernetes, dependency, secret and infrastructure-as-code scanners | Find weaknesses in workloads and deployment material included in scope |
Always remember that no single tool can assess a cloud environment end to end.
So, ask the provider which findings they will validate manually and how each tool maps to your agreed scope. An automated configuration report on its own is not a penetration test, and the same limit applies to automated penetration testing tools that produce findings without a tester confirming the path.
What Makes an Effective Cloud Penetration Test?
An effective cloud penetration test gives you three things: a defined scope, verified attack paths and a penetration testing report your engineers and decision-makers can use.
Use these five checks to judge whether a proposal will deliver that outcome:
| Check | What to look for | Why it matters |
|---|---|---|
| Business-led scope | The proposal maps the business service to its cloud accounts, identities, applications, workloads and data | The report answers the client, tender or risk question that triggered the test |
| Written authority | The proposal records ownership, provider rules, the testing window, permitted techniques, stop conditions and escalation contacts | Testing stays controlled, and urgent findings reach the right person |
| Cloud-native validation | The tester examines identity and control-plane paths alongside the applications, APIs and networks included in scope | The report separates potential weaknesses from verified paths your team can prioritise |
| Useful evidence | Each finding identifies the affected resource, attack path, proof, business impact and practical fix | Engineers know what to fix, and decision-makers can see the business exposure |
| Retesting | The provider records the original finding, retest date and outcome | You can provide dated evidence that the reported attack path was closed |
The scope tells you what will be tested. A sample finding shows whether the final report will help your team act. Before you sign, ask for a redacted example and confirm:
- Whether identity and control-plane testing are included
- Who will perform the work and their experience with your cloud platform
- How urgent findings will be escalated to your team
- Which systems and techniques are excluded
- Whether the quote includes a remediation briefing and retest.
If the proposal lists only a scanner or a set of public IP addresses, you do not have enough detail to compare it properly with other providers on scope, tester days or penetration testing cost.
Why Does Cloud Penetration Testing Matter for Australian Businesses?
For Australia business, the cloud penetration testing matters because it shows whether a weakness in your cloud environment could affect a live business service.
It also gives your team evidence to prioritise fixes, respond to cybersecurity compliance or tender reviews, and support cyber insurance due diligence.
As described by the ASD, cloud security is a shared responsibility. That means your provider protects parts of the platform, while your team remains responsible for identities, permissions, applications and data access.
That evidence is useful in several Australia business situations:
| Business need | What the test can show | Practical outcome |
|---|---|---|
| Prioritising remediation | Which weaknesses form a reachable attack path | Your team can fix the issues with the greatest business impact first |
| Customer or tender review | What was tested, what was found and what was retested | You can answer security questions with independent, dated evidence and keep the review moving |
| Essential Eight or SMB1001 work | Which tested controls worked and where gaps remain | You can focus readiness work before an assessment or certification review |
| Cyber insurance due diligence | The test date, scope, findings and remediation status | You can prepare a current evidence pack for your broker or insurer |
The sections below explain what a cloud penetration testing report can contribute and which evidence your team still needs to provide separately.
Cloud Penetration Testing and Australian Compliance Requirements
Cloud penetration testing can strengthen your compliance and tender evidence, but it cannot prove Essential Eight maturity or grant SMB1001 certification on its own. The Essential Eight is assessed as eight mitigation strategies at a target maturity level across your whole environment, not only the cloud scope in the test.
A test report provides technical proof for the systems in scope. Your assessor, certification provider or customer may still need broader evidence about how your controls operate across the required environment.
| Evidence request | What the test can provide | What still needs separate evidence |
|---|---|---|
| Essential Eight | Findings and retest records relevant to patching, MFA and restricted administrator access in the tested cloud scope | Evidence across every Essential Eight strategy at your target maturity level |
| SMB1001 | Technical findings, remediation records and retest results relevant to the target tier | The current standard, target tier and certification provider determine the required evidence |
| Client or tender assurance | The test date, scope, method, findings and remediation status | The buyer decides which systems, report format and test recency it will accept |
A test report provides technical proof for the systems in scope. Your assessor, certification provider or customer may still need broader evidence about how your controls operate across the required environment.
Before commissioning the test, copy the exact wording from the tender, contract or assessment plan.
Name the systems that must be tested and confirm whether the reviewer will accept an executive summary, an attestation, the full report or retest evidence. For SMB1001, the tier you are certifying against sets which controls and records the certification provider expects, so the scope should follow that list rather than the other way around.
Cloud Penetration Testing and Cyber Insurance
A dated cloud penetration test can support a cyber insurance application or renewal by showing what you tested, what you found and whether serious findings were addressed.
Prepare the evidence your broker or insurer is likely to request:
| Insurer or broker question | Evidence to prepare |
|---|---|
| Was a recent test completed? | Test date, provider and assessment type |
| Did it cover the relevant cloud service? | Accounts, subscriptions, applications, workloads and data paths in scope |
| Were serious issues found? | Executive summary and risk-ranked findings |
| Were those issues addressed? | Remediation status, owners and retest results |
But always confirm with your broker or insurer what format it needs before sharing the full technical report.
Because the full reports contain sensitive architecture and exploitation details, a controlled summary or attestation may be enough.
The insurer decides whether the evidence is acceptable. A completed test does not guarantee cover, a lower premium or claim acceptance.
Strengthen Your Cloud Security with Redscale
When cloud security is pushed behind delivery priorities, a customer review, tender submission or insurance renewal can arrive before you have evidence that the relevant service has been tested.
That can delay project approval, slow customer onboarding or leave your team fixing issues under pressure.
A test that stops at public IP addresses can miss the identities, permissions, storage and workloads behind the service. You can pay for an assessment and still lack the evidence the reviewer asked for.
Start with the service under review, then test the cloud path that supports it.
RedScale’s penetration testing services can scope the relevant AWS, Azure or Google Cloud environment across identities, applications, APIs, storage and workloads.
The engagement validates exploitable weaknesses, prioritises remediation and provides test and retest evidence your engineers and commercial team can use.
Book a discussion with Redscale to plan a penetration test across your cloud environment.
