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Twisted Web HTTP Server Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling) Vulnerability - CVE-2022-24801 - Vulnerability Database
Twisted Web HTTP Server

Twisted Web HTTP Server Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling) Vulnerability - CVE-2022-24801

High
Reference: CVE-2022-24801
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2022-24801
Title: Twisted Web HTTP Server Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling) Vulnerability
Overview:

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 Web39s 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.