9.8
CRITICAL
CVE-2023-40175
Puma HTTP Request Smuggling Vulnerability
Description

Puma is a Ruby/Rack web server built for parallelism. Prior to versions 6.3.1 and 5.6.7, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in a way that allowed HTTP request smuggling. Severity of this issue is highly dependent on the nature of the web site using puma is. This could be caused by either incorrect parsing of trailing fields in chunked transfer encoding bodies or by parsing of blank/zero-length Content-Length headers. Both issues have been addressed and this vulnerability has been fixed in versions 6.3.1 and 5.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

INFO

Published Date :

Aug. 18, 2023, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 8:18 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2023-40175 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-40175 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Puma puma
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-40175.

URL Resource
https://github.com/puma/puma/commit/690155e7d644b80eeef0a6094f9826ee41f1080a Patch
https://github.com/puma/puma/security/advisories/GHSA-68xg-gqqm-vgj8 Vendor Advisory
https://github.com/puma/puma/commit/690155e7d644b80eeef0a6094f9826ee41f1080a Patch
https://github.com/puma/puma/security/advisories/GHSA-68xg-gqqm-vgj8 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Dockerfile Python PHP C JavaScript Go Rust Java Ruby Lua

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 19, 2024, 4:50 p.m. This repo has been linked 4 different CVEs too.

Differential fuzzing REPL for HTTP implementations.

differential-testing http

Dockerfile Python PHP JavaScript C Go Rust Java Ruby Lua

Updated: 1 month ago
715 stars 64 fork 64 watcher
Born at : Dec. 29, 2023, 3:18 p.m. This repo has been linked 4 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-40175 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-40175 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/puma/puma/commit/690155e7d644b80eeef0a6094f9826ee41f1080a
    Added Reference https://github.com/puma/puma/security/advisories/GHSA-68xg-gqqm-vgj8
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Aug. 24, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/puma/puma/commit/690155e7d644b80eeef0a6094f9826ee41f1080a No Types Assigned https://github.com/puma/puma/commit/690155e7d644b80eeef0a6094f9826ee41f1080a Patch
    Changed Reference Type https://github.com/puma/puma/security/advisories/GHSA-68xg-gqqm-vgj8 No Types Assigned https://github.com/puma/puma/security/advisories/GHSA-68xg-gqqm-vgj8 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* versions up to (excluding) 5.6.7 *cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* versions from (including) 6.0.0 up to (excluding) 6.3.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-40175 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-40175 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.48 }} 0.11%

score

0.75425

percentile

CVSS31 - Vulnerability Scoring System
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