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

Quick assessment

Affected
istio istio
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Istio是一套连接、管理和保护微服务的开放平台。 Istio 1.15.x至1.15.3之前版本的分支存在安全漏洞，该漏洞源于拥有对Istiod控制平面的本地主机访问权限的用户可以在服务网格中模拟任何工作负载标识。

CVSS 7.6 · High EPSS 0.48% · P39

Possible ATT&CK Techniques 1 AI

T1098.004 · SSH Authorized Keys
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I. Basic Information for CVE-2022-39388

Vulnerability Information
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Vulnerability Title
Istio may allow identity impersonation if user has localhost access
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Istio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Istio是一套连接、管理和保护微服务的开放平台。 Istio 1.15.x至1.15.3之前版本的分支存在安全漏洞，该漏洞源于拥有对Istiod控制平面的本地主机访问权限的用户可以在服务网格中模拟任何工作负载标识。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
istio istio >= 1.15.0-beta.0, < 1.15.3 -

II. Public POCs for CVE-2022-39388

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III. Intelligence Information for CVE-2022-39388

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Patches & Fixes for CVE-2022-39388 (2)

Vendor Advisories for CVE-2022-39388 (1)

Other References for CVE-2022-39388 (1)

IV. Related Vulnerabilities

Same product: istio
Same vendor: istio
Same weakness: CWE-863

V. Comments for CVE-2022-39388

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