CVE-2024-42367: falha de média gravidade em aio-libs aiohttp
In aiohttp, compressed files as symlinks are not protected from path traversal
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
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
Produtos afetados
aio-libs · aiohttpCVEs relacionadas — aio-libs aiohttp
No mesmo produto, das mais perigosas para as 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%
Referências
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