CVE-2020-5403— DoS Via Malformed URL with Reactor Netty HTTP Server
Quick assessment
Affected
Pivotal 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.
Netty是Netty社区的一款非阻塞I/O客户端-服务器框架，它主要用于开发Java网络应用程序，如协议服务器和客户端等。 Pivotal Software Reactor Netty HttpServer 0.9.3版本和0.9.4版本中存在安全漏洞。攻击者可借助特制的URL利用该漏洞造成连接中断。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-5403
Vulnerability Information
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Vulnerability Title
DoS Via Malformed URL with Reactor Netty HTTP Server
Source: CVE Program / CVE List V5
Vulnerability Description
Reactor Netty HttpServer, versions 0.9.3 and 0.9.4, is exposed to a URISyntaxException that causes the connection to be closed prematurely instead of producing a 400 response.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Pivotal Software Reactor Netty HttpServer 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netty是Netty社区的一款非阻塞I/O客户端-服务器框架，它主要用于开发Java网络应用程序，如协议服务器和客户端等。 Pivotal Software Reactor Netty HttpServer 0.9.3版本和0.9.4版本中存在安全漏洞。攻击者可借助特制的URL利用该漏洞造成连接中断。
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 |
|---|---|---|---|---|
| Pivotal | Reactor Netty | 0.9 v0.9.3.RELEASE | - |
|
II. Public POCs for CVE-2020-5403
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2020-5403 (1)
-
https://pivotal.io/security/cve-2020-5403 x_refsource_CONFIRM
IV. Related Vulnerabilities
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CVE-2026-41715
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V. Comments for CVE-2020-5403
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