HTTP Request Smuggling Affecting python3-gunicorn package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON3GUNICORN-6649530
  • published18 Apr 2024
  • disclosed15 Apr 2024

Introduced: 15 Apr 2024

CVE-2024-1135  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 python3-gunicorn.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-gunicorn package and not the python3-gunicorn package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks including cache poisoning, session manipulation, and data exposure.

CVSS Scores

version 3.1