Cloud Penetration Testing

Cloud Penetration Testing Services

Cloud environments fail differently from on-premise infrastructure. Misconfigurations in IAM roles, storage permissions, network security groups, and serverless functions create attack paths that traditional penetration testing approaches do not cover. Our cloud penetration testing is built specifically for AWS, Azure, and GCP: finding the exploitable paths before attackers do.

AWS / Azure / GCP
All platforms covered
IAM misconfig
Leading cloud risk tested
CIS Benchmarks
Assessment baseline
Container
And serverless included
IAM Configuration & Privilege Escalation

IAM Configuration & Privilege Escalation

Over-permissive IAM roles and policies are the most commonly exploited attack vector in cloud breaches. We enumerate every role, policy, and permission boundary in your environment to identify paths from a low-privilege identity to administrative access: including cross-account escalation paths that span multiple AWS accounts or Azure subscriptions.

Storage & Data Exposure Testing

Storage & Data Exposure Testing

Publicly accessible S3 buckets, Azure Blob containers, and GCP Cloud Storage buckets have been responsible for some of the largest data breaches in history. We enumerate all storage resources and test for public access, over-permissive bucket policies, and sensitive data that should not be accessible from outside your environment.

Network Security & Exposed Services

Network Security & Exposed Services

We audit security groups, network ACLs, VPC configurations, and firewall rules for misconfigurations that expose management interfaces, internal services, or sensitive databases to the internet. We also test for SSRF vulnerabilities that could allow an attacker to access the instance metadata service and retrieve credentials.

Serverless & Container Security

Serverless & Container Security

Lambda functions, Azure Functions, and GCP Cloud Functions often have excessive permissions and insufficient input validation. We test serverless functions for injection vulnerabilities, event injection, insecure direct object reference, and IAM permission abuse. Container environments are tested for image vulnerabilities, misconfigured registries, and container escape paths.

Cloud Reconnaissance & Attack Surface

Cloud Reconnaissance & Attack Surface

We enumerate your cloud attack surface from an external perspective: discovering publicly exposed resources, misconfigured DNS records, exposed APIs, and unauthenticated services. We also test from an authenticated low-privilege perspective to simulate what an attacker with stolen credentials could access.

Cloud Security Assessment Report

Cloud Security Assessment Report

Findings are documented with evidence screenshots, exploitation steps, the business risk represented, and specific remediation guidance. Reports are structured to support cloud security frameworks including CIS AWS Foundations Benchmark, Azure Security Benchmark, and GCP CIS Benchmark.



What Makes Us Different From Others

Cloud Penetration Testing Services
  • Cloud-Native Testing Methodology We use cloud-specific attack techniques and tooling built for AWS, Azure, and GCP: not generic penetration testing tools adapted for cloud environments.
  • IAM Attack Path Analysis We enumerate and graph IAM permissions to identify privilege escalation paths that are not obvious from looking at individual policies in isolation.
  • Multi-Cloud Coverage AWS, Azure, and GCP are all in scope. We also test hybrid environments where on-premise infrastructure connects to cloud through VPNs or ExpressRoute/Direct Connect.
  • CIS Benchmark Alignment Cloud findings are mapped to the relevant CIS Benchmark controls so your remediation work directly improves your compliance posture.
  • Developer-Friendly Remediation Guidance Cloud misconfigurations are fixed in infrastructure-as-code. Our remediation guidance includes specific Terraform, CloudFormation, and ARM template changes where applicable.
  • Retesting Included We verify that IAM policies, security group rules, and storage permissions have been correctly tightened after remediation.

Client results

See how we have helped

Technology / SaaS

SaaS Startup — AWS Security Hardening

A seed-stage SaaS startup had customer data in a public S3 bucket. garrisonOne conducted a full AWS security assessment against CIS benchmarks and hardened the environment in 4 weeks.

3
Public S3 buckets closed
19
Overprivileged IAM roles fixed
100%
Security review passed
Read full story

Frequently asked questions

What does cloud penetration testing cover?

Cloud penetration testing covers IAM configuration and privilege escalation paths, storage and data exposure, network security group and firewall misconfiguration, serverless function security, container security, metadata service exploitation, cross-account trust abuse, and externally exposed services. The specific coverage depends on which cloud platforms and services you use.

Is cloud penetration testing different from a cloud security assessment?

A cloud security assessment is primarily a configuration review: checking your environment against best practices and benchmarks like the CIS AWS Foundations Benchmark. Cloud penetration testing is adversarial: we attempt to actively exploit misconfigured IAM roles, storage permissions, and network controls to demonstrate the real impact of findings. We recommend combining both approaches for comprehensive coverage.

Do you need AWS/Azure/GCP credentials to do cloud penetration testing?

For an authenticated cloud penetration test, yes: we typically need credentials representing a low-privilege user or role to simulate what an attacker with stolen credentials could access. For external testing, we can begin without credentials to simulate an unauthenticated attacker. The most thorough assessments combine both.

Will cloud penetration testing affect our production environment?

We work with your team to scope testing appropriately and avoid production disruption. Destructive tests: such as deleting resources: are never performed without explicit authorization. We test read access, privilege escalation paths, and configuration issues rather than causing service disruption.

What are the most common critical findings in cloud penetration tests?

The most common critical findings are: over-privileged IAM roles with wildcard permissions, publicly accessible S3 buckets or storage containers containing sensitive data, instance metadata service (IMDS) accessible without IMDSv2 enforcement, security groups allowing unrestricted inbound access to management ports, and Lambda or Cloud Function IAM roles with excessive permissions enabling lateral movement.

Do you test Kubernetes and container environments?

Yes. Kubernetes and container security is included in cloud penetration testing engagements. We test for misconfigured RBAC, exposed API servers, insecure pod security policies, container escape paths, and image pull secret exposure.

Is cloud penetration testing required for compliance?

PCI DSS requires penetration testing of all in-scope systems including cloud environments. SOC 2 and ISO 27001 include requirements that typically require cloud security testing. FedRAMP requires cloud security assessment and penetration testing for government-connected cloud environments.

How long does cloud penetration testing take?

A focused cloud penetration test of a single AWS account or Azure subscription typically takes one to two weeks. Multi-account or multi-cloud environments may require two to four weeks. We provide a timeline after reviewing your cloud architecture.

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