CVE-2023-46136
Werkzeug Denial of Service (DoS) Vulnerability
Description
Werkzeug is a comprehensive WSGI web application library. If an upload of a file that starts with CR or LF and then is followed by megabytes of data without these characters: all of these bytes are appended chunk by chunk into internal bytearray and lookup for boundary is performed on growing buffer. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. This vulnerability has been patched in version 3.0.1.
INFO
Published Date :
Oct. 25, 2023, 6:17 p.m.
Last Modified :
Jan. 10, 2024, 6:58 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
2.1
Public PoC/Exploit Available at Github
CVE-2023-46136 has a 2 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-2023-46136.
| URL | Resource |
|---|---|
| https://github.com/pallets/werkzeug/commit/f3c803b3ade485a45f12b6d6617595350c0f03e2 | Patch |
| https://github.com/pallets/werkzeug/security/advisories/GHSA-hrfv-mqp8-q5rw | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20231124-0008/ | Third Party 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
Python Dockerfile
None
Python Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-46136 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-46136 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 -
Modified Analysis by [email protected]
Jan. 10, 2024
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20231124-0008/ No Types Assigned https://security.netapp.com/advisory/ntap-20231124-0008/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:palletsprojects:werkzeug:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.1 OR *cpe:2.3:a:palletsprojects:werkzeug:*:*:*:*:*:*:*:* versions up to (excluding) 2.3.8 *cpe:2.3:a:palletsprojects:werkzeug:3.0.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 24, 2023
Action Type Old Value New Value Added Reference GitHub, Inc. https://security.netapp.com/advisory/ntap-20231124-0008/ [No types assigned] -
Initial Analysis by [email protected]
Nov. 01, 2023
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/pallets/werkzeug/commit/f3c803b3ade485a45f12b6d6617595350c0f03e2 No Types Assigned https://github.com/pallets/werkzeug/commit/f3c803b3ade485a45f12b6d6617595350c0f03e2 Patch Changed Reference Type https://github.com/pallets/werkzeug/security/advisories/GHSA-hrfv-mqp8-q5rw No Types Assigned https://github.com/pallets/werkzeug/security/advisories/GHSA-hrfv-mqp8-q5rw Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:palletsprojects:werkzeug:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-46136 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-2023-46136
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.01%
score
0.19266
percentile