Skip to content
TrustLayerLabs
Book a Call
Home/Services/SaaS Penetration Testing
Offensive Multi-Tenant Security Assessment

SaaS Penetration Testing & Tenant Isolation VAPT

Automated vulnerability scanners cannot understand tenant boundaries or complex workflow logic. We conduct deep manual security testing across multi-tenant data partitioning, Broken Object Level Authorization (BOLA), RBAC privilege escalation, and background job queues to guarantee Customer A can never access Customer B's data.

AUDIT TIMELINE

๐Ÿ•’ 5โ€“7 business days with critical findings debrief within 48โ€“72h.

RETEST GUARANTEE

Free 30-day retesting included with verified third-party attestation letter.

MUTUAL NDA

Bilateral NDA executed upfront prior to architecture or credential exchange.

Who Needs SaaS Penetration Testing

Our multi-tenant testing methodology is purpose-built for engineering leaders and security stakeholders responsible for safeguarding customer datasets.

B2B SaaS Engineering Teams

Verify that enterprise tenant isolation boundaries remain unbreachable across complex multi-tenant database schemas and microservices.

SaaS Startups Closing Enterprise Deals

Provide certified third-party pentest attestations and detailed remediation evidence to satisfy enterprise customer vendor security reviews.

SOC 2 Type II & ISO 27001 Seekers

Fulfill annual independent technical penetration testing requirements with audit-ready documentation and zero false-positive proof.

High-Growth Product Companies

Prevent privilege escalation between free, pro, and enterprise tiers, safeguarding revenue models and proprietary customer workspaces.

SaaS Assessment Scope & Testing Focus Areas

We systematically probe the architectural fault lines where multi-tenant SaaS applications commonly leak data or fail authorization checks.

TENANT-ISO

Multi-Tenant Data Isolation & Partitioning

Testing row-level security (RLS), tenant database schemas, and shared cache stores (Redis) to ensure Tenant A cannot read, modify, or delete Tenant B records.

BOLA-IDOR

Broken Object Level Authorization (BOLA)

Systematically manipulating workspace UUIDs, document IDs, project tokens, and export parameters to uncover authorization bypasses automated scanners miss.

RBAC-ABAC

Role & Privilege Boundary Escalation

Testing horizontal and vertical privilege boundaries between Owners, Admins, Members, and Viewers to prevent unauthorized administrative actions.

ASYNC-JOBS

Background Worker & Queue Isolation

Auditing background task processors (Celery, BullMQ, Sidekiq) to ensure queued export and reporting jobs do not run under ambient un-scoped service roles.

BILLING-TIER

Subscription Tier & Feature Flag Tampering

Manipulating client-side states, API parameters, and Stripe/payment gateway webhooks to attempt unauthorized access to restricted enterprise features.

SSO-OAUTH

SAML, OAuth 2.0 & Session Security

Auditing enterprise single sign-on (SSO), SAML assertion forging, session fixation, token expiration, and multi-factor authentication (MFA) bypasses.

Executive & Engineering Deliverables

You receive zero-fluff, actionable technical documentation designed for both developer patch implementation and enterprise customer security reviews.

Technical Remediation Report:Complete CVSS v3.1 scoring, step-by-step curl reproduction commands, and copy-paste code patches.
Auditor-Ready Attestation Letter:Official signed third-party attestation letter certifying testing scope and verified remediation status for enterprise buyers.
Interactive Developer Debrief:30-to-60 minute video call with lead offensive engineers to walk through vulnerability findings and remediation guidance.
Complimentary 30-Day Retesting:Full verification retest within 30 days of patch deployment to certify that identified vulnerabilities are completely resolved.

Assessment Scope Boundaries & Safe Harbor Limitations

To preserve stability and data integrity, testing strictly follows agreed rules of engagement:

  • In Scope: All proprietary web application frontends, REST/GraphQL APIs, tenant authorization logic, authentication flows, and background worker queues.
  • Out of Scope: Denial of Service (DoS/DDoS) attacks, social engineering of employees, physical cloud data centers, and third-party SaaS services (e.g., Stripe, SendGrid, AWS underlying infrastructure).
  • Safe Harbor: Testing is conducted strictly under authorized safe harbor terms, preventing data corruption, irreversible account modification, or service degradation.

Frequently Asked SaaS Penetration Testing Questions

How can SaaS companies test multi-tenant isolation?

SaaS companies test tenant isolation by provisioning two or more independent test organizations in staging (e.g., Tenant A Admin, Tenant A Member, Tenant B Admin) and systematically attempting cross-tenant access. Testing probes database row-level security (RLS), ORM query filters, shared Redis caches, and background worker queues to ensure Customer A can never access or mutate Customer B's records under parameter tampering.

What is BOLA and why is it dangerous in multi-tenant SaaS?

Broken Object Level Authorization (BOLA/IDOR) occurs when API endpoints rely on user-supplied IDs (such as workspaceId, documentId, or accountId) without validating that the authenticated session owns that object. In SaaS architectures, BOLA allows an authenticated user in one organization to view, modify, or delete another organization's proprietary datasets by simply altering the identifier in the request.

How do you test multi-tenant SaaS isolation without risking live customer data?

We conduct assessments using dedicated testing tenants in staging environments, or isolated tenant sandboxes in production. Our practitioners use dual-account matrix testing (Tenant A Admin/User vs. Tenant B Admin/User) to prove cross-tenant access without touching or exposing real customer records.

Does your SaaS penetration test satisfy SOC 2 Type II and ISO 27001 requirements?

Yes. Our assessments fulfill the technical penetration testing mandates of SOC 2 Trust Services Criteria (CC6.1, CC6.6, CC6.8) and ISO/IEC 27001 Control A.12.6. We deliver an auditor-ready technical report and retest verification letter signed by certified security practitioners. Formal SOC 2 audit reports and ISO certificates are issued by independent accredited CPA/certification bodies.

What credentials and access are required for a SaaS penetration test?

For thorough grey-box testing, we require two testing organizations or tenants with two roles in each (e.g. one Admin and one standard User per tenant). We also request API specifications (OpenAPI/Swagger) and staging access under a mutual Non-Disclosure Agreement (NDA).

What is the typical turnaround time for a SaaS pentest?

Standard SaaS engagements require 5 to 7 business days of active testing. We conduct an initial debrief of critical findings within 48 to 72 hours, deliver the complete technical report upon completion, and include 30 days of free retesting following your patch deployment.

What is considered out of scope during a SaaS penetration test?

Testing strictly targets your proprietary web application code, API logic, and cloud configurations. Physical data centers, underlying infrastructure of third-party cloud providers (AWS, GCP, Azure), and external third-party subprocessors (e.g. Stripe backend servers) are out of scope.

Book a 30-Minute SaaS Penetration Testing Scoping Call

Schedule a confidential technical consultation with our lead security architects under mutual NDA. We review your tenant model, endpoint counts, and compliance timeline to deliver an immediate fixed-price proposal.

Contact Security Team

Initiate Your Security Assessment

Request a scope review or connect directly with our offensive security practitioners. Mutual NDA executed upfront.

Direct Practitioner Channels 24h response SLA

Connect with us for scoping advice, security assessment enquiries, or to execute a mutual NDA before technical discussions.

Delivery Operations:

๐Ÿ“ Distributed Team: Remote-First Security Assessments

Jurisdiction: Govt. of India Registered MSME ยท UDYAM-AP-21-0044317

Select a slot directly with our security architect: Live Availability
Live Practitioner Availability

30-Minute Confidential Security Review

Speak directly with an offensive security architect. Choose your time slot with real-time calendar synchronization.

Instant Confirmation & NDA