CVE-2022-39388

Istio may allow identity impersonation if user has localhost access

Description

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.

Category

7.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.16%
Vendor Advisory istio.io
Affected: istio istio
Published at:
Updated at:

References

Link Tags
https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4 third party advisory
https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32 third party advisory patch
https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9 third party advisory patch
https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3/ release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-39388?
CVE-2022-39388 has been scored as a high severity vulnerability.
How to fix CVE-2022-39388?
To fix CVE-2022-39388, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-39388 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-39388 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-39388?
CVE-2022-39388 affects istio istio.
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