CVE-2023-45803 (Medium) detected in urllib3-1.26.8-py2.py3-none-any.whl

[mend-bolt-for-github]

CVE-2023-45803 - Medium Severity Vulnerability

Vulnerable Library - urllib3-1.26.8-py2.py3-none-any.whl

HTTP library with thread-safe connection pooling, file post, and more.

Library home page: https://files.pythonhosted.org/packages/4e/b8/f5a25b22e803f0578e668daa33ba3701bb37858ec80e08a150bd7d2cf1b1/urllib3-1.26.8-py2.py3-none-any.whl

Path to dependency file: /server/requirements.txt

Path to vulnerable library: /server/requirements.txt

Dependency Hierarchy:

• coreapi-2.3.3-py2.py3-none-any.whl (Root Library)
  • requests-2.27.1-py2.py3-none-any.whl
    • ❌ urllib3-1.26.8-py2.py3-none-any.whl (Vulnerable Library)

Found in HEAD commit: f5138814bd6e253a8a5e8826b5a576edb13ed346

Found in base branch: main

Vulnerability Details

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.

Publish Date: 2023-10-17

URL: CVE-2023-45803

CVSS 3 Score Details (4.2)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Adjacent
  • Attack Complexity: High
  • Privileges Required: High
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-g4mx-q9vg-27p4

Release Date: 2023-10-17

Fix Resolution: urllib3 - 1.26.18,2.0.7

---

Step up your Open Source Security Game with Mend here