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HTTP Request Smuggling Affecting aiohttp package, versions [,3.9.2)

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.07% (32nd percentile)
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NVD
6.5 medium
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Red Hat
6.5 medium
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SUSE
5.3 medium

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  • Snyk ID SNYK-PYTHON-AIOHTTP-6209407
  • published 30 Jan 2024
  • disclosed 29 Jan 2024
  • credit Paul J. Dorn
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Introduced: 29 Jan 2024

CVE-2024-23829 Open this link in a new tab
CWE-444 Open this link in a new tab

How to fix?

Upgrade aiohttp to version 3.9.2 or higher.

Overview

Affected versions of this package are vulnerable to HTTP Request Smuggling due to improper validation of HTTP request elements. An attacker can potentially inject additional requests or cause unhandled exceptions leading to excessive resource consumption by exploiting leniencies in the HTTP parser and inconsistencies in error handling.

PoC 

GET / HTTP/1ö1
GET / HTTP/1.𝟙
GET/: HTTP/1.1
Content-Encoding?: chunked