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CVE-2023-34054— Reactor Netty HTTP Server Metrics DoS Vulnerability

Quick assessment

Affected
Spring Reactor Netty
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.

Reactor Netty是基于 Netty 框架的非阻塞和背压就绪的 TCP/HTTP/UDP/QUIC 客户端和服务器。 Reactor Netty存在安全漏洞，该漏洞源于HTTP Server允许攻击者通过特制的HTTP请求导致拒绝服务（DOS）。受影响的产品和版本：Reactor Netty HTTP Server 1.1.13之前的1.1.x版本和1.0.39之前的1.0.x版本。

CVSS 5.3 · Medium EPSS 0.91% · P59

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-34054

Vulnerability Information
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Vulnerability Title
Reactor Netty HTTP Server Metrics DoS Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition. Specifically, an application is vulnerable if Reactor Netty HTTP Server built-in integration with Micrometer is enabled.
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:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Reactor Netty 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Reactor Netty是基于 Netty 框架的非阻塞和背压就绪的 TCP/HTTP/UDP/QUIC 客户端和服务器。 Reactor Netty存在安全漏洞，该漏洞源于HTTP Server允许攻击者通过特制的HTTP请求导致拒绝服务（DOS）。受影响的产品和版本：Reactor Netty HTTP Server 1.1.13之前的1.1.x版本和1.0.39之前的1.0.x版本。
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
Spring Reactor Netty 1.1.0 ~ 1.1.13 -

II. Public POCs for CVE-2023-34054

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III. Intelligence Information for CVE-2023-34054

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Other References for CVE-2023-34054 (1)

Same Patch Batch · Spring · 2023-11-28 · 3 CVEs total

CVE-2023-34055 5.3 MEDIUM Spring Boot server Web Observations DoS Vulnerability
CVE-2023-34053 5.3 MEDIUM Spring Framework server Web Observations DoS Vulnerability

IV. Related Vulnerabilities

Same product: Reactor Netty
Same vendor: Spring

V. Comments for CVE-2023-34054

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