CVE-2024-42367: fallo de gravedad media en aio-libs aiohttp
In aiohttp, compressed files as symlinks are not protected from path traversal
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 4.8epss 0.7%
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions on the 3.10 branch prior to version 3.10.2, static routes which contain files with compressed variants (`.gz` or `.br` extension) are vulnerable to path traversal outside the root directory if those variants are symbolic links. The server protects static routes from path traversal outside the root directory when `follow_symlinks=False` (default). It does this by resolving the requested URL to an absolute path and then checking that path relative to the root. However, these checks are not performed when looking for compressed variants in the `FileResponse` class, and symbolic links are then automatically followed when performing the `Path.stat()` and `Path.open()` to send the file. Version 3.10.2 contains a patch for the issue.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Productos afectados
aio-libs · aiohttpCVEs relacionadas — aio-libs aiohttp
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-23334MEDIUMaiohttp.web.static(follow_symlinks=True) is vulnerable to directory traversalEPSS 76.9%CVE-2021-21330LOWOpen redirect vulnerability in aiohttpEPSS 1.9%CVE-2023-37276MEDIUMaiohttp vulnerable to HTTP request smugglingEPSS 1.3%CVE-2024-30251HIGHDenial of service when trying to parse malformed POST requests in aiohttpEPSS 1.1%CVE-2024-23829MEDIUMaiohttp's HTTP parser (the python one, not llhttp) still overly lenient about separatorsEPSS 1.0%CVE-2023-49082MEDIUMaiohttp's ClientSession is vulnerable to CRLF injection via methodEPSS 0.9%
Referencias
https://github.com/aio-libs/aiohttp/blob/e0ff5246e1d29b7710ab1a2bbc972b48169f1c05/aiohttp/web_fileresponse.py#L177https://github.com/aio-libs/aiohttp/blob/e0ff5246e1d29b7710ab1a2bbc972b48169f1c05/aiohttp/web_urldispatcher.py#L674https://github.com/aio-libs/aiohttp/commit/ce2e9758814527589b10759a20783fb03b98339fhttps://github.com/aio-libs/aiohttp/pull/8653https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jwhx-xcg6-8xhj