CVE-2022-24790

CRITICAL

Puma < 4.3.12 and 5.0.0-5.6.4 - HTTP Request Smuggling via Proxy Request Parsing Discrepancy

Title source: llm
STIX 2.1

Description

Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230 standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow requests to be smuggled via the front-end proxy to Puma. The vulnerability has been fixed in 5.6.4 and 4.3.12. Users are advised to upgrade as soon as possible. Workaround: when deploying a proxy in front of Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.

References (8)

Core 8
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://github.com/puma/puma/security/advisories/GHSA-h99w-9q5r-gjq9
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2022/dsa-5146
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202208-28
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/08/msg00015.html

Scores

CVSS v3 9.1
EPSS 0.0202
EPSS Percentile 78.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-444
Status published
Products (7)
debian/debian_linux 10.0
debian/debian_linux 11.0
fedoraproject/fedora 35
fedoraproject/fedora 36
fedoraproject/fedora 37
puma/puma < 4.3.12
rubygems/puma 5.0.0 - 5.6.4RubyGems
Published Mar 30, 2022
Tracked Since Feb 18, 2026