HTTP Request Smuggling Affecting tornado package, versions [,6.3.3)
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Test your applications- Snyk ID SNYK-PYTHON-TORNADO-5840803
- published 15 Aug 2023
- disclosed 14 Aug 2023
- credit kenballus
How to fix?
Upgrade tornado
to version 6.3.3 or higher.
Overview
tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.
Affected versions of this package are vulnerable to HTTP Request Smuggling due to improper parsing of the -
, +
, and _
characters in chunk length and Content-Length
fields through the int
constructor.
Note: Exploiting this vulnerability is possible if Tornado is deployed behind certain proxies that interpret non-standard characters differently, such as older versions of haproxy.
References
CVSS Scores
version 3.1