CVE-2024-21647
Puma HTTP Request Smuggling Vulnerability
Description
Puma is a web server for Ruby/Rack applications built for parallelism. Prior to version 6.4.2, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies in a way that allowed HTTP request smuggling. Fixed versions limits the size of chunk extensions. Without this limit, an attacker could cause unbounded resource (CPU, network bandwidth) consumption. This vulnerability has been fixed in versions 6.4.2 and 5.6.8.
INFO
Published Date :
Jan. 8, 2024, 2:15 p.m.
Last Modified :
Jan. 11, 2024, 5:31 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2024-21647.
| URL | Resource |
|---|---|
| https://github.com/puma/puma/commit/5fc43d73b6ff193325e657a24ed76dec79133e93 | Patch |
| https://github.com/puma/puma/security/advisories/GHSA-c2f4-cvqm-65w2 | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-21647 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-21647 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jan. 11, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/puma/puma/commit/5fc43d73b6ff193325e657a24ed76dec79133e93 No Types Assigned https://github.com/puma/puma/commit/5fc43d73b6ff193325e657a24ed76dec79133e93 Patch Changed Reference Type https://github.com/puma/puma/security/advisories/GHSA-c2f4-cvqm-65w2 No Types Assigned https://github.com/puma/puma/security/advisories/GHSA-c2f4-cvqm-65w2 Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* versions up to (excluding) 5.6.8 *cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* versions from (including) 6.0.0 up to (excluding) 6.4.2 -
CVE Received by [email protected]
Jan. 08, 2024
Action Type Old Value New Value Added Description Puma is a web server for Ruby/Rack applications built for parallelism. Prior to version 6.4.2, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies in a way that allowed HTTP request smuggling. Fixed versions limits the size of chunk extensions. Without this limit, an attacker could cause unbounded resource (CPU, network bandwidth) consumption. This vulnerability has been fixed in versions 6.4.2 and 5.6.8. Added Reference GitHub, Inc. https://github.com/puma/puma/security/advisories/GHSA-c2f4-cvqm-65w2 [No types assigned] Added Reference GitHub, Inc. https://github.com/puma/puma/commit/5fc43d73b6ff193325e657a24ed76dec79133e93 [No types assigned] Added CWE GitHub, Inc. CWE-444 Added CVSS V3.1 GitHub, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-21647 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-2024-21647
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.10265
percentile