From Signal to the Android SDK: Chaining Path Traversal, Mimetype Confusion, Security Check Bypass and File Descriptor Bruteforce for Arbitrary File Access
Read more →Secure Your Web Authentication System
Test authentication the way attackers do: by exercising end-to-end user journeys and validating what happens at runtime, not just what’s configured. Model your authentication surface: login, registration, password reset, step-up challenges, and session handling
Detect bypass conditions and logic gaps: missing checks, inconsistent enforcement, and broken transitions between steps
Validate session and token lifecycle: login, refresh, logout, expiry, privilege/role changes
Generate developer-ready findings with evidence, impact, and specific remediation guidance
Retest quickly after fixes to confirm closure and prevent regressions
They trust us
Test Web Authentication Across Every User Journey
With Ostorlab, simulate real authentication flows, validate session behavior, and capture proof-backed results—covering passwords, OTPs, SSO, custom headers, and step-up mechanisms for complete confidence in your web app’s login security.
1
Broad Authentication Support (No “only these providers” limitation)
Test common and custom mechanisms
2
Flow-First Testing, Not Checkbox Testing
Instead of generic checks, Ostorlab focuses on how your users actually authenticate, and the exact points where enforcement breaks across pages, endpoints, and states.
3
Scriptable in the Format Teams Can Maintain
Get remediation-ready guidance ordered by impact — not just a long list of alerts.
4
Recorded Runs + Session Proof (Validation You Can Trust)
Flows are recorded and replayed to provide runtime proof that authentication actually worked, confirming the user successfully signed in, that a valid session or token was issued, and that subsequent requests behave as expected in an authenticated state (access, redirects, and permissions match the intended level of access).
Clear Ownership Handoff – Fix the Right Layer
Our findings indicate precisely which layer is affected, helping your team assign responsibility and remediate efficiently
Frontend Logic
UI assumptions, missing state enforcement, or broken transitions that may allow bypasses.
Backend / API Enforcement
Authorization checks, token handling, or endpoint protections that require fixes on the server side.
Identity Provider / SSO Configuration
Misconfigurations or gaps in external authentication services.
Session & Token Lifecycle
Issues with login, refresh, logout, expiry, or privilege/role changes that impact session security.
Seamless Integrations with Your Tech Stack
Don't let security become a bottleneck. Ostorlab integrates directly with the tools your development and security teams already use, ensuring that vulnerability management is automated, traceable, and fast.
Jira
Jenkins
GitHub
GitLab
Bitbucket
SAML
Azure DevOps
Microsoft AppCenter
CircleCI
GoCD
TeamCity
Okta
Google Workspace
OneLogin
Azure Active Directory
Slack
Vanta
ServiceNow
Bitrise
Harness
Why Teams Choose Us
Support, Scalability, Transparency
Accompanied at Every Step
Hands-on guidance and support from onboarding to outcome to ensure seamless usage of features evolved through customer feedback.
Free Unlimited Invites
Collaborate without constraints by adding as many profiles as needed per application, enabling teams to work together seamlessly with no user number restrictions and no additional costs.
No Hidden Fees
Simple, transparent pricing with no hidden costs. Know what you pay for, and back it with a full refund guarantee if unsatisfied.
Trusted by Security Teams Worldwide
Discover why industry experts love working with our platform
Very efficient team, the support engineers are very good and knowledgeable. The product is always evolving and they take customer input very seriously.
A reliable product with unique features and a personalized approach to products.
The platform helped us evaluate our internal mobile applications easily and efficiently. The onboarding was smooth and the UI dynamic automation is great.
The product meets our needs perfectly and is easy to set up and use. The team is very reactive.
Very professional and technical. Five star. Excellent delivery.
We selected Ostorlab as our sole partner in providing mobile applications and web vulnerability scans. We have a very good partnership.
Their customer service is top notch and their product is constantly improving.
Easy to use and getting better with new updates, they are also quick to help and very efficient.
Great product, with amazing customer service, very useful, accurate, and straightforward to use.
Prompt support and personalized features highlighted.
I had a very excellent experience with Ostorlab as a MAST solution.
Very efficient team, the support engineers are very good and knowledgeable. The product is always evolving and they take customer input very seriously.
A reliable product with unique features and a personalized approach to products.
The platform helped us evaluate our internal mobile applications easily and efficiently. The onboarding was smooth and the UI dynamic automation is great.
The product meets our needs perfectly and is easy to set up and use. The team is very reactive.
Very professional and technical. Five star. Excellent delivery.
We selected Ostorlab as our sole partner in providing mobile applications and web vulnerability scans. We have a very good partnership.
Their customer service is top notch and their product is constantly improving.
Easy to use and getting better with new updates, they are also quick to help and very efficient.
Great product, with amazing customer service, very useful, accurate, and straightforward to use.
Prompt support and personalized features highlighted.
I had a very excellent experience with Ostorlab as a MAST solution.
Very efficient team, the support engineers are very good and knowledgeable. The product is always evolving and they take customer input very seriously.
A reliable product with unique features and a personalized approach to products.
The platform helped us evaluate our internal mobile applications easily and efficiently. The onboarding was smooth and the UI dynamic automation is great.
The product meets our needs perfectly and is easy to set up and use. The team is very reactive.
Very professional and technical. Five star. Excellent delivery.
We selected Ostorlab as our sole partner in providing mobile applications and web vulnerability scans. We have a very good partnership.
Their customer service is top notch and their product is constantly improving.
Easy to use and getting better with new updates, they are also quick to help and very efficient.
Great product, with amazing customer service, very useful, accurate, and straightforward to use.
Prompt support and personalized features highlighted.
I had a very excellent experience with Ostorlab as a MAST solution.
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Frequently Asked Questions
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