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CVE-2022-24823— Local Information Disclosure Vulnerability in io.netty:netty-codec-http

Quick assessment

Affected
netty 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。 Netty的软件包io.netty:netty-codec-http 4.1.77之前版本存在安全漏洞，该漏洞源于启用了磁盘上临时上传功能，就可以通过本地系统临时目录公开本地信息。

CVSS 5.5 · Medium EPSS 1.04% · P64

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2022-24823

Vulnerability Information
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Vulnerability Title
Local Information Disclosure Vulnerability in io.netty:netty-codec-http
Source: CVE Program / CVE List V5
Vulnerability Description
Netty is an open-source, asynchronous event-driven network application framework. The package `io.netty:netty-codec-http` prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own `java.io.tmpdir` when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
将资源暴露给错误范围
Source: CVE Program / CVE List V5
Vulnerability Title
Netty 安全漏洞
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。 Netty的软件包io.netty:netty-codec-http 4.1.77之前版本存在安全漏洞，该漏洞源于启用了磁盘上临时上传功能，就可以通过本地系统临时目录公开本地信息。
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
netty netty <= 4.1.76.Final -

II. Public POCs for CVE-2022-24823

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III. Intelligence Information for CVE-2022-24823

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Patches & Fixes for CVE-2022-24823 (1)

Vendor Advisories for CVE-2022-24823 (4)

IV. Related Vulnerabilities

Same product: netty
Same vendor: netty
Same weakness: CWE-668