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CVE-2022-31183— mTLS client verification is skipped in fs2 on Node.js

Quick assessment

Affected
typelevel fs2
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.

Node.js是一个开源、跨平台的 JavaScript 运行时环境。 Node.js上的fs2 存在信任管理问题漏洞，该漏洞源于在 Node.js 上使用 fs2-io 建立服务器模式TLSSocket 时，会忽略参数 requestCert = true，跳过对等证书验证，并继续连接，以下产品和版本受到影响:co.fs2:fs2-io_sjs1_2.12 3.2.11之前版本、co.fs2:fs2-io_sjs1_2.13 3.2.11之前版本、co.fs2:fs2-io_sjs1_3 3.2.11之

CVSS 9.1 · Critical EPSS 0.79% · P53

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-31183

Vulnerability Information
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Vulnerability Title
mTLS client verification is skipped in fs2 on Node.js
Source: CVE Program / CVE List V5
Vulnerability Description
fs2 is a compositional, streaming I/O library for Scala. When establishing a server-mode `TLSSocket` using `fs2-io` on Node.js, the parameter `requestCert = true` is ignored, peer certificate verification is skipped, and the connection proceeds. The vulnerability is limited to: 1. `fs2-io` running on Node.js. The JVM TLS implementation is completely independent. 2. `TLSSocket`s in server-mode. Client-mode `TLSSocket`s are implemented via a different API. 3. mTLS as enabled via `requestCert = true` in `TLSParameters`. The default setting is `false` for server-mode `TLSSocket`s. It was introduced with the initial Node.js implementation of fs2-io in 3.1.0. A patch is released in v3.2.11. The requestCert = true parameter is respected and the peer certificate is verified. If verification fails, a SSLException is raised. If using an unpatched version on Node.js, do not use a server-mode TLSSocket with requestCert = true to establish a mTLS connection.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Node.js 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Node.js是一个开源、跨平台的 JavaScript 运行时环境。 Node.js上的fs2 存在信任管理问题漏洞，该漏洞源于在 Node.js 上使用 fs2-io 建立服务器模式TLSSocket 时，会忽略参数 requestCert = true，跳过对等证书验证，并继续连接，以下产品和版本受到影响:co.fs2:fs2-io_sjs1_2.12 3.2.11之前版本、co.fs2:fs2-io_sjs1_2.13 3.2.11之前版本、co.fs2:fs2-io_sjs1_3 3.2.11之
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
typelevel fs2 >= 3.1.0, < 3.2.11 -

II. Public POCs for CVE-2022-31183

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III. Intelligence Information for CVE-2022-31183

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Patches & Fixes for CVE-2022-31183 (1)

Vendor Advisories for CVE-2022-31183 (1)

Other References for CVE-2022-31183 (1)

IV. Related Vulnerabilities

Same product: fs2
Same vendor: typelevel
Same weakness: CWE-295

V. Comments for CVE-2022-31183

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