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CVE-2023-40167— Jetty accepts "+" prefixed value in Content-Length

Quick assessment

Affected
eclipse jetty.project
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse Jetty是Eclipse基金会的一个开源的、基于Java的Web服务器和Java Servlet容器。 Eclipse Jetty 存在安全漏洞，该漏洞源于拒绝请求并返回400响应。

CVSS 5.3 · Medium EPSS 1.28% · P69

Possible ATT&CK Techniques 1 AI

T1102 · Web Service
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I. Basic Information for CVE-2023-40167

Vulnerability Information
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Vulnerability Title
Jetty accepts "+" prefixed value in Content-Length
Source: CVE Program / CVE List V5
Vulnerability Description
Jetty is a Java based web server and servlet engine. Prior to versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1, Jetty accepts the `+` character proceeding the content-length value in a HTTP/1 header field. This is more permissive than allowed by the RFC and other servers routinely reject such requests with 400 responses. There is no known exploit scenario, but it is conceivable that request smuggling could result if jetty is used in combination with a server that does not close the connection after sending such a 400 response. Versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1 contain a patch for this issue. There is no workaround as there is no known exploit scenario.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
长度参数不一致性处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse Jetty 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse Jetty是Eclipse基金会的一个开源的、基于Java的Web服务器和Java Servlet容器。 Eclipse Jetty 存在安全漏洞，该漏洞源于拒绝请求并返回400响应。
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
eclipse jetty.project >= 9.0.0, <= 9.4.51 -

II. Public POCs for CVE-2023-40167

# POC Description Source Link Shenlong Link
1 None https://github.com/uthrasri/Jetty-v9.4.31_CVE-2023-40167- POC Details
2 None https://github.com/uthrasri/Jetty-v9.4.31_CVE-2023-40167 POC Details
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III. Intelligence Information for CVE-2023-40167

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Vendor Advisories for CVE-2023-40167 (2)

Mailing List Discussions for CVE-2023-40167 (1)

Other References for CVE-2023-40167 (1)

Same Patch Batch · eclipse · 2023-09-15 · 3 CVEs total

CVE-2023-41900 3.5 LOW Jetty's OpenId Revoked authentication allows one request
CVE-2023-36479 3.5 LOW Jetty vulnerable to errant command quoting in CGI Servlet

IV. Related Vulnerabilities

Same product: jetty.project
Same vendor: eclipse
Same weakness: CWE-130

V. Comments for CVE-2023-40167

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