90255ef7d8
# Which Problems Are Solved
ZITADEL allows the use of JSON Web Token (JWT) Profile OAuth 2.0 for Authorization Grants in machine-to-machine (M2M) authentication. Multiple keys can be managed for a single machine account (service user), each with an individual expiry.
A vulnerability existed where expired keys can be used to retrieve tokens. Specifically, ZITADEL fails to properly check the expiration date of the JWT key when used for Authorization Grants. This allows an attacker with an expired key to obtain valid access tokens.
This vulnerability does not affect the use of JWT Profile for OAuth 2.0 Client Authentication on the Token and Introspection endpoints, which correctly reject expired keys.
# How the Problems Are Solved
Added proper validation of the expiry of the stored public key.
# Additional Changes
None
# Additional Context
None
(cherry picked from commit 315503beab)
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Are you searching for a user management tool that is quickly set up like Auth0 and open source like Keycloak?
Do you have a project that requires multi-tenant user management with self-service for your customers?
Look no further — ZITADEL is the identity infrastructure, simplified for you.
We provide you with a wide range of out-of-the-box features to accelerate your project, including:
✅ Multi-tenancy with team management
✅ Secure login
✅ Self-service
✅ OpenID Connect
✅ OAuth2.x
✅ SAML2
✅ LDAP
✅ Passkeys / FIDO2
✅ OTP
and an unlimited audit trail is there for you, ready to use.
With ZITADEL, you are assured of a robust and customizable turnkey solution for all your authentication and authorization needs.
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We built ZITADEL with a complex multi-tenancy architecture in mind and provide the best solution to handle B2B customers and partners. Yet it offers everything you need for a customer identity (CIAM) use case.
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Secure a React Application using OpenID Connect Authorization Code with PKCE
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