{
  "id": "CVE-2024-42367",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2024-08-12T13:38:34.240",
  "lastModified": "2024-08-12T13:41:36.517",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. 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."
    },
    {
      "lang": "es",
      "value": "aiohttp es un framework cliente/servidor HTTP as\u00edncrono para asyncio y Python. Antes de la versi\u00f3n 3.10.2, las rutas est\u00e1ticas que contienen archivos con variantes comprimidas (extensi\u00f3n `.gz` o `.br`) son vulnerables al path traversal fuera del directorio ra\u00edz si esas variantes son enlaces simb\u00f3licos. El servidor protege las rutas est\u00e1ticas contra el path traversal fuera del directorio ra\u00edz cuando `follow_symlinks=False` (predeterminado). Para ello, resuelve la URL solicitada en una ruta absoluta y luego verifica esa ruta en relaci\u00f3n con la ra\u00edz. Sin embargo, estas comprobaciones no se realizan cuando se buscan variantes comprimidas en la clase `FileResponse`, y los enlaces simb\u00f3licos se siguen autom\u00e1ticamente al realizar `Path.stat()` y `Path.open()` para enviar el archivo. La versi\u00f3n 3.10.2 contiene un parche para el problema."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 2.5
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security-advisories@github.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-61"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/aio-libs/aiohttp/blob/e0ff5246e1d29b7710ab1a2bbc972b48169f1c05/aiohttp/web_fileresponse.py#L177",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/aio-libs/aiohttp/blob/e0ff5246e1d29b7710ab1a2bbc972b48169f1c05/aiohttp/web_urldispatcher.py#L674",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/aio-libs/aiohttp/commit/ce2e9758814527589b10759a20783fb03b98339f",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/aio-libs/aiohttp/pull/8653",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-jwhx-xcg6-8xhj",
      "source": "security-advisories@github.com"
    }
  ]
}