جزئیات آسیب‌پذیری

Dapr Sentry's OIDC discovery endpoint derives the issuer and jwks_uri of the /.well-known/openid-configuration document from the request Host, honoring an attacker-controlled X-Forwarded-Host header without validation when no allowed-hosts list is configured (the default), and serves the document with a one-hour public cache lifetime. A remote unauthenticated attacker can poison the discovery document so relying parties performing dynamic (unpinned) discovery fetch the JWKS from an attacker-controlled server, causing attacker-signed JWTs to be accepted. Exploitation requires the OIDC server enabled without a configured jwt-issuer or oidc-allowed-hosts.

• https://github.com/dapr/dapr/pull/10027 issue-trackingpatch
• https://github.com/dapr/dapr/pull/10028 issue-trackingpatch
• https://github.com/dapr/dapr/pull/10029 issue-trackingpatch
• https://www.vulncheck.com/advisories/dapr-oidc-discovery-issuer-and-jwks-uri-injection-via-unvalidated-x-forwarded-host third-party-advisory