CVE-2022-23635

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Summary

CVECVE-2022-23635
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-02-22 22:15:00 UTC
Updated2023-07-13 16:32:00 UTC
DescriptionIstio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, `istiod`, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing. This endpoint is served over TLS port 15012, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [multicluster](https://istio.io/latest/docs/setup/install/multicluster/primary-remote/) topologies, this port is exposed over the public internet. There are no effective workarounds, beyond upgrading. Limiting network access to Istiod to the minimal set of clients can help lessen the scope of the vulnerability to some extent.

Risk And Classification

Problem Types: CWE-1284

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Istio Istio All All All All

References

ReferenceSourceLinkTags
[release-1.13] Harden validation of untrusted inputs (#90) (#96) · istio/istio@5f3b5ed · GitHub MISC github.com
Unauthenticated control plane denial of service attack · Advisory · istio/istio · GitHub CONFIRM github.com
Istio / ISTIO-SECURITY-2022-003 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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