CVE-2022-39388

Istio may allow identity impersonation if user has localhost access

Severity Score

3.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Istio es una plataforma abierta para conectar, administrar y proteger microservicios. En las versiones de la rama 1.15.x anteriores a la 1.15.3, un usuario puede suplantar cualquier identidad de carga de trabajo dentro de la malla de servicios si tiene acceso de host local al plano de control de Istiod. La versión 1.15.3 contiene un parche para este problema. No se conocen workarounds.

*Credits: N/A

CVSS Scores

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

Attack Vector

Adjacent

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-09-02 CVE Reserved
2022-11-10 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-863: Incorrect Authorization

CAPEC

References (4)

URL	Tag	Source
https://github.com/istio/istio/security/advisories/GHSA-6c6p-h79f-g6p4	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/istio/istio/commit/346260e5115e9fbc65ba8a559bc686e6ca046a32	2022-11-15
https://github.com/istio/istio/commit/9a643e270421560afb2630e00f76d46a55499df9	2022-11-15

URL	Date	SRC
https://istio.io/latest/news/releases/1.15.x/announcing-1.15.3	2022-11-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Istio Search vendor "Istio"		Istio Search vendor "Istio" for product "Istio"				>= 1.15.0 <= 1.15.2 Search vendor "Istio" for product "Istio" and version " >= 1.15.0 <= 1.15.2"		-		Affected