CVE-2022-21701

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Summary

CVECVE-2022-21701
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-01-19 22:15:00 UTC
Updated2022-01-27 14:03:00 UTC
DescriptionIstio is an open platform to connect, manage, and secure microservices. In versions 1.12.0 and 1.12.1 Istio is vulnerable to a privilege escalation attack. Users who have `CREATE` permission for `gateways.gateway.networking.k8s.io` objects can escalate this privilege to create other resources that they may not have access to, such as `Pod`. This vulnerability impacts only an Alpha level feature, the Kubernetes Gateway API. This is not the same as the Istio Gateway type (gateways.networking.istio.io), which is not vulnerable. Users are advised to upgrade to resolve this issue. Users unable to upgrade should implement any of the following which will prevent this vulnerability: Remove the gateways.gateway.networking.k8s.io CustomResourceDefinition, set PILOT_ENABLE_GATEWAY_API_DEPLOYMENT_CONTROLLER=true environment variable in Istiod, or remove CREATE permissions for gateways.gateway.networking.k8s.io objects from untrusted users.

Risk And Classification

Problem Types: CWE-863

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Istio Istio 1.12.0 - All All
Application Istio Istio 1.12.0 alpha0 All All
Application Istio Istio 1.12.0 alpha1 All All
Application Istio Istio 1.12.0 alpha5 All All
Application Istio Istio 1.12.0 beta0 All All
Application Istio Istio 1.12.0 beta1 All All
Application Istio Istio 1.12.0 beta2 All All
Application Istio Istio 1.12.0 rc1 All All
Application Istio Istio 1.12.1 All All All

References

ReferenceSourceLinkTags
Privileged Escalation in Kubernetes Gateway API · Advisory · istio/istio · GitHub CONFIRM github.com
Istio / Announcing Istio 1.12.2 MISC istio.io
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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