Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2022-39278— Istio vulnerable to denial of service attack due to Golang Regex Library

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 存在资源管理错误漏洞，该漏洞源于容易受到请求处理错误的影响，攻击者利用该漏洞可以发送特制或超大消息，从而在 Kubernetes 验证或变异 webhook 服务公开时导致控制平台崩溃。

CVSS 7.5 · High EPSS 1.16% · P65
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2022-39278

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Istio vulnerable to denial of service attack due to Golang Regex Library
Source: CVE Program / CVE List V5
Vulnerability Description
Istio is an open platform-independent service mesh that provides traffic management, policy enforcement, and telemetry collection. Prior to versions 1.15.2, 1.14.5, and 1.13.9, the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted or oversized message which results in the control plane crashing when the Kubernetes validating or mutating webhook service is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially external istiod topologies, this port is exposed over the public internet. Versions 1.15.2, 1.14.5, and 1.13.9 contain patches for this issue. There are no effective workarounds, beyond upgrading. This bug is due to an error in `regexp.Compile` in Go.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Istio 资源管理错误漏洞
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 存在资源管理错误漏洞，该漏洞源于容易受到请求处理错误的影响，攻击者利用该漏洞可以发送特制或超大消息，从而在 Kubernetes 验证或变异 webhook 服务公开时导致控制平台崩溃。
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 < 1.13.9 -

II. Public POCs for CVE-2022-39278

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-39278

请登录查看更多情报信息。

Vendor Advisories for CVE-2022-39278 (1)

Other References for CVE-2022-39278 (3)

IV. Related Vulnerabilities

Same product: istio
Same vendor: istio
Same weakness: CWE-400

V. Comments for CVE-2022-39278

No comments yet

Leave a comment