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Security Advisories: GSA_kwCzR0hTQS1oOTl3LTlxNXItZ2pxOc028Q
Puma vulnerable to HTTP Request Smuggling
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 following vulnerabilities are addressed by this advisory:
- Lenient parsing of
Transfer-Encodingheaders, when unsupported encodings should be rejected and the final encoding must bechunked. - Lenient parsing of malformed
Content-Lengthheaders and chunk sizes, when only digits and hex digits should be allowed. - Lenient parsing of duplicate
Content-Lengthheaders, when they should be rejected. - Lenient parsing of the ending of chunked segments, when they should end with
\r\n.
The vulnerability has been fixed in 5.6.4 and 4.3.12. When deploying a proxy in front of Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
These proxy servers are known to have "good" behavior re: this standard and upgrading Puma may not be necessary. Users are encouraged to validate for themselves.
- Nginx (latest)
- Apache (latest)
- Haproxy 2.5+
- Caddy (latest)
- Traefik (latest)
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1oOTl3LTlxNXItZ2pxOc028Q
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: about 2 years ago
Updated: 12 months ago
CVSS Score: 9.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Identifiers: GHSA-h99w-9q5r-gjq9, CVE-2022-24790
References:
- https://github.com/puma/puma/security/advisories/GHSA-h99w-9q5r-gjq9
- https://github.com/puma/puma/commit/5bb7d202e24dec00a898dca4aa11db391d7787a5
- https://nvd.nist.gov/vuln/detail/CVE-2022-24790
- https://portswigger.net/web-security/request-smuggling
- https://www.debian.org/security/2022/dsa-5146
- https://security.gentoo.org/glsa/202208-28
- https://lists.debian.org/debian-lts-announce/2022/08/msg00015.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/L7NESIBFCNSR3XH7LXDPKVMSUBNUB43G/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TUBFJ44NCKJ34LECZRAP4N5VL6USJSIB/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/F6YWGIIKL7KKTS3ZOAYMYPC7D6WQ5OA5/
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puma/CVE-2022-24790.yml
- https://github.com/advisories/GHSA-h99w-9q5r-gjq9
Blast Radius: 51.0
Affected Packages
rubygems:puma
Dependent packages: 627Dependent repositories: 404,320
Downloads: 357,648,490 total
Affected Version Ranges: < 4.3.12, >= 5.0.0, < 5.6.4
Fixed in: 4.3.12, 5.6.4
All affected versions: 0.8.0, 0.8.1, 0.8.2, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.9.4, 0.9.5, 1.0.0, 1.1.0, 1.1.1, 1.2.0, 1.2.1, 1.2.2, 1.3.0, 1.3.1, 1.4.0, 1.5.0, 1.6.0, 1.6.1, 1.6.2, 1.6.3, 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.3.2, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.7.0, 2.7.1, 2.8.0, 2.8.1, 2.8.2, 2.9.0, 2.9.1, 2.9.2, 2.10.0, 2.10.1, 2.10.2, 2.11.0, 2.11.1, 2.11.2, 2.11.3, 2.12.0, 2.12.1, 2.12.2, 2.12.3, 2.13.0, 2.13.1, 2.13.2, 2.13.3, 2.13.4, 2.14.0, 2.15.0, 2.15.1, 2.15.2, 2.15.3, 2.16.0, 3.0.0, 3.0.1, 3.0.2, 3.1.0, 3.1.1, 3.2.0, 3.3.0, 3.4.0, 3.5.0, 3.5.1, 3.5.2, 3.6.0, 3.6.1, 3.6.2, 3.7.0, 3.7.1, 3.8.0, 3.8.1, 3.8.2, 3.9.0, 3.9.1, 3.10.0, 3.11.0, 3.11.1, 3.11.2, 3.11.3, 3.11.4, 3.12.0, 3.12.1, 3.12.2, 3.12.4, 3.12.5, 3.12.6, 4.0.0, 4.0.1, 4.1.0, 4.1.1, 4.2.0, 4.2.1, 4.3.0, 4.3.1, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 4.3.10, 4.3.11, 5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.1.0, 5.1.1, 5.2.0, 5.2.1, 5.2.2, 5.3.0, 5.3.1, 5.3.2, 5.4.0, 5.5.0, 5.5.1, 5.5.2, 5.6.0, 5.6.1, 5.6.2
All unaffected versions: 4.3.12, 5.6.4, 5.6.5, 5.6.6, 5.6.7, 5.6.8, 6.0.0, 6.0.1, 6.0.2, 6.1.0, 6.1.1, 6.2.0, 6.2.1, 6.2.2, 6.3.0, 6.3.1, 6.4.0, 6.4.1, 6.4.2