ESSENTIAL GUIDANCE · CLOUD TESTING · 11 min read
Part of Validate insights →Cloud penetration testing UK: a buyer's guide to cloud security assurance
What UK buyers should scope, authorise and expect when commissioning penetration testing across AWS, Azure or Google Cloud.
What UK buyers should scope, authorise and expect when commissioning penetration testing across AWS, Azure or Google Cloud.
Need an acronym translated?Open the cyber glossary →Cloud testing covers relationships, not just hosts
Cloud risk often sits between identity, configuration, networking, storage, workloads, APIs and deployment pipelines. A useful assessment follows those trust relationships and tests whether apparently modest weaknesses can be combined. A conventional host scan may still form part of the work, but it cannot by itself answer whether cloud permissions, service roles and control-plane configuration create a practical attack pathi.
Confirm responsibility and provider rules
The customer remains responsible for authorising the engagement and defining the accounts, subscriptions, projects and services in scope. Review the current testing rules of the relevant cloud provider and identify any managed services or third-party components that require separate permission. Record prohibited actions, data-handling restrictions, escalation contacts and stop conditionsi before testing begins.
Scope identity and control planes
Include human and workload identities, privileged roles, federation, keys, secrets, conditional access, management interfaces and trust between environments. Misconfiguration is not limited to publicly readable storage. Excessive permissions, weak separation and exposed credentials can allow movement from an application or CI/CD system into more sensitive cloud resources.
Provide enough context for meaningful testing
Grey- or white-box access can improve coverage by allowing testers to review roles, configurations and logging that are invisible from the internet. That does not make the test less rigorous; it uses limited time to investigate the controls the organisation actually relies on. External testing remains valuable for the attacker view, particularly when paired with continuous discovery of public assets and change.
Buy evidence, remediation and closure
Ask who will perform the work, how evidence is quality-assured, when material findings will be raised and how limitations will be reported. Outputs should work for cloud engineers and decision-makers, with clear ownership and practical remediation guidance. Pentesys Validate supports AWS, Azure and GCP scopes, combines automated breadth with qualified human judgement and includes retestingi to verify important fixes.
This guide covers the essentials. Continue into our technical analysis for a firmer position, practical implications and recommended action.
Read “Modern penetration testing should create decisions, not just findings” →
