CVE-2024-24762
Apache Python-multipart Regular Expression Denial of Service
Description
`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.
INFO
Published Date :
Feb. 5, 2024, 3:15 p.m.
Last Modified :
Feb. 17, 2024, 2:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2024-24762 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2024-24762.
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).
A centralized repository of standalone security patches for open source libraries.
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The following list is the news that have been mention
CVE-2024-24762 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-24762 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 -
CVE Modified by [email protected]
Feb. 17, 2024
Action Type Old Value New Value Changed Description FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.1. `python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7. Added Reference GitHub, Inc. https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p [No types assigned] Added Reference GitHub, Inc. https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4 [No types assigned] Added Reference GitHub, Inc. https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238 [No types assigned] Added Reference GitHub, Inc. https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74 [No types assigned] Added Reference GitHub, Inc. https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5 [No types assigned] -
Reanalysis by [email protected]
Feb. 16, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:tiangolo:fastapi:*:*:*:*:*:*:*:* versions up to (excluding) 1.109.1 OR *cpe:2.3:a:tiangolo:fastapi:*:*:*:*:*:*:*:* versions up to (excluding) 0.109.1 -
Initial Analysis by [email protected]
Feb. 13, 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/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc No Types Assigned https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc Patch Changed Reference Type https://github.com/tiangolo/fastapi/releases/tag/0.109.1 No Types Assigned https://github.com/tiangolo/fastapi/releases/tag/0.109.1 Product Changed Reference Type https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389 No Types Assigned https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389 Exploit, Vendor Advisory Added CWE NIST CWE-1333 Added CPE Configuration OR *cpe:2.3:a:tiangolo:fastapi:*:*:*:*:*:*:*:* versions up to (excluding) 1.109.1 -
CVE Modified by [email protected]
Feb. 09, 2024
Action Type Old Value New Value Changed Description FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.0. FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.1. -
CVE Received by [email protected]
Feb. 05, 2024
Action Type Old Value New Value Added Description FastAPI is a web framework for building APIs with Python 3.8+ based on standard Python type hints. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests. It's a ReDoS(Regular expression Denial of Service), it only applies to those reading form data, using `python-multipart`. This vulnerability has been patched in version 0.109.0. Added Reference GitHub, Inc. https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389 [No types assigned] Added Reference GitHub, Inc. https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc [No types assigned] Added Reference GitHub, Inc. https://github.com/tiangolo/fastapi/releases/tag/0.109.1 [No types assigned] Added CWE GitHub, Inc. CWE-400 Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/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-2024-24762 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-2024-24762
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.07%
score
0.45734
percentile