CVE-2023-49082 aiohttp's ClientSession is vulnerable to CRLF injection via method

2023-11-2920:07:29

CWE-93

CWE-20

GitHub_M

www.cve.org

aiohttp

clientsession

crlf injection

async

asyncio

python

http request

vulnerability

request smuggling

version 3.9.0

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

6.1 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.8%

JSON

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation makes it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new HTTP request if the attacker controls the HTTP method. The vulnerability occurs only if the attacker can control the HTTP method (GET, POST etc.) of the request. If the attacker can control the HTTP version of the request it will be able to modify the request (request smuggling). This issue has been patched in version 3.9.0.

CNA Affected

[
  {
    "vendor": "aio-libs",
    "product": "aiohttp",
    "versions": [
      {
        "version": "< 3.9.0",
        "status": "affected"
      }
    ]
  }
]