Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the client may bypass JSON Web Token (JWT) checks and forge fake original paths. The header `x-envoy-original-path` should be an internal header, but Envoy does not remove this header from the request at the beginning of request processing when it is sent from an untrusted client. The faked header would then be used for trace logs and grpc logs, as well as used in the URL used for `jwt_authn` checks if the `jwt_authn` filter is used, and any other upstream use of the x-envoy-original-path header. Attackers may forge a trusted `x-envoy-original-path` header. Versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9 have patches for this issue.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-04-04T15:42:34.330Z

Updated: 2024-08-02T12:09:43.442Z

Reserved: 2023-03-01T19:03:56.634Z

Link: CVE-2023-27487

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2023-04-04T16:15:07.343

Modified: 2023-04-11T15:05:03.007

Link: CVE-2023-27487

cve-icon Redhat

Severity : Important

Publid Date: 2023-04-04T19:00:00Z

Links: CVE-2023-27487 - Bugzilla