oauth-sso-attack

To test OAuth 2.0 redirect_uri validation, apply documented attack vectors like redirect_uri hijacking to evaluate if an application properly validates callback URLs and prevents session takeover. This includes verifying deterministic testing across web and mobile integrations.

A missing state parameter CSRF attack in OpenID Connect exploits weak state handling during the authentication flow to hijack user sessions. It targets the trust boundary where the application fails to bind the authorization request to the user's active session.

Detect token leakage in SSO flows by testing token exposure across service-to-service integrations and social login buttons. Use concrete payload examples to verify if access tokens are improperly transmitted or logged through insecure redirect endpoints.

Yes, this OAuth security testing approach works for mobile apps by evaluating redirect_uri validation, state handling, and scope management across web, mobile, and service-to-service integrations to identify misconfigured trust boundaries.

The best way to prevent scope uplift in OAuth flows is to analyze scope management controls using concrete attack vectors and payload examples. Verify that applications strictly enforce requested scopes against authorized permissions during the token issuance process.