CVE-2023-45803
"Urllib3 HTTP Redirection Body Disclosure Vulnerability"
Description
urllib3 is a user-friendly HTTP client library for Python. urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 301, 302, or 303 after the request had its method changed from one that could accept a request body (like `POST`) to `GET` as is required by HTTP RFCs. Although this behavior is not specified in the section for redirects, it can be inferred by piecing together information from different sections and we have observed the behavior in other major HTTP client implementations like curl and web browsers. Because the vulnerability requires a previously trusted service to become compromised in order to have an impact on confidentiality we believe the exploitability of this vulnerability is low. Additionally, many users aren't putting sensitive data in HTTP request bodies, if this is the case then this vulnerability isn't exploitable. Both of the following conditions must be true to be affected by this vulnerability: 1. Using urllib3 and submitting sensitive information in the HTTP request body (such as form data or JSON) and 2. The origin service is compromised and starts redirecting using 301, 302, or 303 to a malicious peer or the redirected-to service becomes compromised. This issue has been addressed in versions 1.26.18 and 2.0.7 and users are advised to update to resolve this issue. Users unable to update should disable redirects for services that aren't expecting to respond with redirects with `redirects=False` and disable automatic redirects with `redirects=False` and handle 301, 302, and 303 redirects manually by stripping the HTTP request body.
INFO
Published Date :
Oct. 17, 2023, 8:15 p.m.
Last Modified :
Nov. 3, 2023, 10:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.5
Public PoC/Exploit Available at Github
CVE-2023-45803 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-2023-45803.
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
A centralized repository of standalone security patches for open source libraries.
appsec backport cve devsecops fix hotfix open-source patch protection remediation seal security update upgrade vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-45803 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-45803 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]
Nov. 03, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 03, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/4R2Y5XK3WALSR3FNAGN7JBYV2B343ZKB/ [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 25, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/urllib3/urllib3/commit/4e98d57809dacab1cbe625fddeec1a290c478ea9 No Types Assigned https://github.com/urllib3/urllib3/commit/4e98d57809dacab1cbe625fddeec1a290c478ea9 Patch Changed Reference Type https://github.com/urllib3/urllib3/security/advisories/GHSA-g4mx-q9vg-27p4 No Types Assigned https://github.com/urllib3/urllib3/security/advisories/GHSA-g4mx-q9vg-27p4 Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/PPDPLM6UUMN55ESPQWJFLLIZY4ZKCNRX/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/PPDPLM6UUMN55ESPQWJFLLIZY4ZKCNRX/ Mailing List Changed Reference Type https://www.rfc-editor.org/rfc/rfc9110.html#name-get No Types Assigned https://www.rfc-editor.org/rfc/rfc9110.html#name-get Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:python:urllib3:*:*:*:*:*:*:*:* versions up to (excluding) 1.26.18 *cpe:2.3:a:python:urllib3:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.0.7 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 21, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PPDPLM6UUMN55ESPQWJFLLIZY4ZKCNRX/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-45803 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-2023-45803
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
0.08190
percentile