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CVE-2022-24801— HTTP Request Smuggling in twisted.web

Quick assessment

Affected
twisted twisted
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.

Twisted是一款使用Python语言编写的事件驱动的开源网络引擎。 Twisted 存在环境问题漏洞，该漏洞源于在版本22.4.0rc1之前，Twisted Web HTTP 1.1服务器位于Twisted中。网状物http模块，比RFC 7230允许的更轻松地解析了几个http请求构造。如果请求通过多个HTTP解析器，这种不一致的解析可能会导致去同步，从而可能导致HTTP请求走私。

CVSS 8.1 · High EPSS 2.80% · P85
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I. Basic Information for CVE-2022-24801

Vulnerability Information
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Vulnerability Title
HTTP Request Smuggling in twisted.web
Source: CVE Program / CVE List V5
Vulnerability Description
Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to version 22.4.0rc1, the Twisted Web HTTP 1.1 server, located in the `twisted.web.http` module, parsed several HTTP request constructs more leniently than permitted by RFC 7230. This non-conformant parsing can lead to desync if requests pass through multiple HTTP parsers, potentially resulting in HTTP request smuggling. Users who may be affected use Twisted Web's HTTP 1.1 server and/or proxy and also pass requests through a different HTTP server and/or proxy. The Twisted Web client is not affected. The HTTP 2.0 server uses a different parser, so it is not affected. The issue has been addressed in Twisted 22.4.0rc1. Two workarounds are available: Ensure any vulnerabilities in upstream proxies have been addressed, such as by upgrading them; or filter malformed requests by other means, such as configuration of an upstream proxy.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: CVE Program / CVE List V5
Vulnerability Title
Twisted 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Twisted是一款使用Python语言编写的事件驱动的开源网络引擎。 Twisted 存在环境问题漏洞，该漏洞源于在版本22.4.0rc1之前，Twisted Web HTTP 1.1服务器位于Twisted中。网状物http模块，比RFC 7230允许的更轻松地解析了几个http请求构造。如果请求通过多个HTTP解析器，这种不一致的解析可能会导致去同步，从而可能导致HTTP请求走私。
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
twisted twisted <= 22.2.0 -

II. Public POCs for CVE-2022-24801

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III. Intelligence Information for CVE-2022-24801

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Patches & Fixes for CVE-2022-24801 (1)

Vendor Advisories for CVE-2022-24801 (2)

Mailing List Discussions for CVE-2022-24801 (2)

Other References for CVE-2022-24801 (1)

IV. Related Vulnerabilities

Same product: twisted
Same vendor: twisted
Same weakness: CWE-444

V. Comments for CVE-2022-24801

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