Safety vulnerability ID: 47974
The information on this page was manually curated by our Cybersecurity Intelligence Team.
Twisted 22.4.0rc1 includes a fix for CVE-2022-24801: 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. Two workarounds are available: Ensure any vulnerabilities in upstream proxies have been addressed, such as by upgrading them; or filtering malformed requests by other means, such as configurating an upstream proxy.
https://github.com/twisted/twisted/security/advisories/GHSA-c2jg-hw38-jrqq
Latest version: 24.3.0
An asynchronous networking framework written in Python
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. See CVE-2022-24801.
CONFIRM:https://github.com/twisted/twisted/security/advisories/GHSA-c2jg-hw38-jrqq: https://github.com/twisted/twisted/security/advisories/GHSA-c2jg-hw38-jrqq
MISC:https://github.com/twisted/twisted/commit/592217e951363d60e9cd99c5bbfd23d4615043ac: https://github.com/twisted/twisted/commit/592217e951363d60e9cd99c5bbfd23d4615043ac
MISC:https://github.com/twisted/twisted/releases/tag/twisted-22.4.0rc1: https://github.com/twisted/twisted/releases/tag/twisted-22.4.0rc1
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