CVE-2023-25578 Starlite DoS vulnerability when parsing multipart request body

2023-02-1514:58:31

CWE-770

GitHub_M

www.cve.org

starlite

dos

vulnerability

multipart

request

parsing

cpu

ram

denial of service

remote

unauthenticated

asgi

framework

worker

patch

out-of-memory

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

48.3%

JSON

Starlite is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to version 1.5.2, the request body parsing in starlite allows a potentially unauthenticated attacker to consume a large amount of CPU time and RAM. The multipart body parser processes an unlimited number of file parts and an unlimited number of field parts. This is a remote, potentially unauthenticated Denial of Service vulnerability. This vulnerability affects applications with a request handler that accepts a Body(media_type=RequestEncodingType.MULTI_PART). The large amount of CPU time required for processing requests can block all available worker processes and significantly delay or slow down the processing of legitimate user requests. The large amount of RAM accumulated while processing requests can lead to Out-Of-Memory kills. Complete DoS is achievable by sending many concurrent multipart requests in a loop. Version 1.51.2 contains a patch for this issue.

CNA Affected

[
  {
    "vendor": "starlite-api",
    "product": "starlite",
    "versions": [
      {
        "version": "< 1.51.2",
        "status": "affected"
      }
    ]
  }
]