Skip to content
OpenAdvisories
Critical · 10.0 CVE-2022-29226 EUVD-2022-33588

Trivial authentication bypass in Envoy

Published Jun 9, 2022 · Updated Apr 23, 2025 · Assigned by GitHub_M

Description

Envoy is a cloud-native high-performance proxy. In versions prior to 1.22.1 the OAuth filter implementation does not include a mechanism for validating access tokens, so by design when the HMAC signed cookie is missing a full authentication flow should be triggered. However, the current implementation assumes that access tokens are always validated thus allowing access in the presence of any access token attached to the request. Users are advised to upgrade. There is no known workaround for this issue.

Affected products

VendorProductAffectedFixed
envoyproxy envoy < 1.22.1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Red Hat Service Mesh 2 servicemesh +6 2.1.3-1.el8 RHSA-2022:5004
Red Hat Service Mesh 2 servicemesh-operator 2.1.3-2.el8 RHSA-2022:5004
Red Hat Service Mesh 2 servicemesh-prometheus 2.23.0-7.el8 RHSA-2022:5004

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 cri-o 1.23.3-1.el8 ELSA-2022-9588
Oracle Linux 8 cri-tools 1.23.0-1.el8 ELSA-2022-9588
Oracle Linux 8 etcd 3.5.1-2.el8 ELSA-2022-9588
Oracle Linux 8 istio +1 1.13.5-1.el8 ELSA-2022-9588, ELSA-2022-9586
Oracle Linux 8 kata 1.12.1-5.el8 ELSA-2022-9588
Oracle Linux 8 kubeadm +2 1.23.7-1.el8 ELSA-2022-9588
Oracle Linux 8 olcne-metallb-chart +1 1.5.4-3.el8 ELSA-2022-9588
Oracle Linux 8 olcnectl +10 1.4.6-2.el8 ELSA-2022-9588, ELSA-2022-9586
Oracle Linux 7 cri-o 1.23.3-1.el7 ELSA-2022-9589
Oracle Linux 7 cri-tools 1.23.0-1.el7 ELSA-2022-9589
Oracle Linux 7 etcd 3.5.1-2.el7 ELSA-2022-9589
Oracle Linux 7 istio +1 1.13.5-1.el7 ELSA-2022-9589, ELSA-2022-9587
Oracle Linux 7 kata 1.12.1-5.el7 ELSA-2022-9589
Oracle Linux 7 kubeadm +2 1.23.7-1.el7 ELSA-2022-9589
Oracle Linux 7 olcne-metallb-chart +1 1.5.4-3.el7 ELSA-2022-9589
Oracle Linux 7 olcnectl +10 1.4.6-2.el7 ELSA-2022-9589, ELSA-2022-9587

Advisories 6

References