CVE-2022-39388

Istio may allow identity impersonation if user has localhost access

CVSS 7.6 HIGHEPSS 0.5%CWE-863

Istio is an open platform to connect, manage, and secure microservices. In versions on the 1.15.x branch prior to 1.15.3, a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane. Version 1.15.3 contains a patch for this issue. There are no known workarounds.

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Affected products

istio · istio

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References

https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32 https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9 https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4 https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3/