What is the severity of CVE-2022-39388?

The severity of CVE-2022-39388 is high, with a severity value of 3.5.

How can CVE-2022-39388 be exploited?

CVE-2022-39388 can be exploited by an attacker with localhost access to the Istiod control plane, allowing them to impersonate any workload identity within the service mesh.

How do I fix CVE-2022-39388?

To fix CVE-2022-39388, update Istio to version 1.15.3 or later, which contains a patch for this vulnerability.

Where can I find more information about CVE-2022-39388?

You can find more information about CVE-2022-39388 on the Istio GitHub repository and the Istio security advisories page.

Vulnerability/
CVE-2022-39388

high

7.6

CWE

863

10/11/2022

3/8/2024

CVE-2022-39388: Istio may allow identity impersonation if user has localhost access

Q: What is CVE-2022-39388?

CVE-2022-39388 is a vulnerability in Istio, where a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane.

First published: Thu Nov 10 2022(Updated: )

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.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Istio Istio	>=1.15.0<=1.15.2

Remedy

https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32

Remedy

https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9

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Reference Links

Frequently Asked Questions

What is CVE-2022-39388?
CVE-2022-39388 is a vulnerability in Istio, where a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane.
What is the severity of CVE-2022-39388?
The severity of CVE-2022-39388 is high, with a severity value of 3.5.
How can CVE-2022-39388 be exploited?
CVE-2022-39388 can be exploited by an attacker with localhost access to the Istiod control plane, allowing them to impersonate any workload identity within the service mesh.
How do I fix CVE-2022-39388?
To fix CVE-2022-39388, update Istio to version 1.15.3 or later, which contains a patch for this vulnerability.
Where can I find more information about CVE-2022-39388?
You can find more information about CVE-2022-39388 on the Istio GitHub repository and the Istio security advisories page.

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