pysec-2024-162
Vulnerability from pysec
Published
2024-02-28 00:15
Modified
2025-01-14 05:22
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details

A Regular Expression Denial of Service (ReDoS) vulnerability exists in the XMLFeedSpider class of the scrapy/scrapy project, specifically in the parsing of XML content. By crafting malicious XML content that exploits inefficient regular expression complexity used in the parsing process, an attacker can cause a denial-of-service (DoS) condition. This vulnerability allows for the system to hang and consume significant resources, potentially rendering services that utilize Scrapy for XML processing unresponsive.

Impacted products
Name purl
scrapy pkg:pypi/scrapy
Aliases


To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "scrapy",
        "purl": "pkg:pypi/scrapy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "479619b340f197a8f24c5db45bc068fb8755f2c5"
            },
            {
              "fixed": "479619b340f197a8f24c5db45bc068fb8755f2c5"
            }
          ],
          "repo": "https://github.com/scrapy/scrapy",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.11.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10.4.2364",
        "0.12.0.2550",
        "0.14.1",
        "0.14.2",
        "0.14.3",
        "0.14.4",
        "0.16.0",
        "0.16.1",
        "0.16.2",
        "0.16.3",
        "0.16.4",
        "0.16.5",
        "0.18.0",
        "0.18.1",
        "0.18.2",
        "0.18.3",
        "0.18.4",
        "0.20.0",
        "0.20.1",
        "0.20.2",
        "0.22.0",
        "0.22.1",
        "0.22.2",
        "0.24.0",
        "0.24.1",
        "0.24.2",
        "0.24.3",
        "0.24.4",
        "0.24.5",
        "0.24.6",
        "0.7",
        "0.8",
        "0.9",
        "1.0.0",
        "1.0.0rc1",
        "1.0.0rc2",
        "1.0.0rc3",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.0.4",
        "1.0.5",
        "1.0.6",
        "1.0.7",
        "1.1.0",
        "1.1.0rc1",
        "1.1.0rc2",
        "1.1.0rc3",
        "1.1.0rc4",
        "1.1.1",
        "1.1.2",
        "1.1.3",
        "1.1.4",
        "1.2.0",
        "1.2.1",
        "1.2.2",
        "1.2.3",
        "1.3.0",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.4.0",
        "1.5.0",
        "1.5.1",
        "1.5.2",
        "1.6.0",
        "1.7.0",
        "1.7.1",
        "1.7.2",
        "1.7.3",
        "1.7.4",
        "1.8.0",
        "1.8.1",
        "1.8.2",
        "1.8.3",
        "1.8.4",
        "2.0.0",
        "2.0.1",
        "2.1.0",
        "2.10.0",
        "2.10.1",
        "2.11.0",
        "2.2.0",
        "2.2.1",
        "2.3.0",
        "2.4.0",
        "2.4.1",
        "2.5.0",
        "2.5.1",
        "2.6.0",
        "2.6.1",
        "2.6.2",
        "2.6.3",
        "2.7.0",
        "2.7.1",
        "2.8.0",
        "2.9.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-1892"
  ],
  "details": "A Regular Expression Denial of Service (ReDoS) vulnerability exists in the XMLFeedSpider class of the scrapy/scrapy project, specifically in the parsing of XML content. By crafting malicious XML content that exploits inefficient regular expression complexity used in the parsing process, an attacker can cause a denial-of-service (DoS) condition. This vulnerability allows for the system to hang and consume significant resources, potentially rendering services that utilize Scrapy for XML processing unresponsive.",
  "id": "PYSEC-2024-162",
  "modified": "2025-01-14T05:22:21.870348+00:00",
  "published": "2024-02-28T00:15:53+00:00",
  "references": [
    {
      "type": "EVIDENCE",
      "url": "https://huntr.com/bounties/271f94f2-1e05-4616-ac43-41752389e26b"
    },
    {
      "type": "FIX",
      "url": "https://github.com/scrapy/scrapy/commit/479619b340f197a8f24c5db45bc068fb8755f2c5"
    },
    {
      "type": "FIX",
      "url": "https://huntr.com/bounties/271f94f2-1e05-4616-ac43-41752389e26b"
    },
    {
      "type": "REPORT",
      "url": "https://huntr.com/bounties/271f94f2-1e05-4616-ac43-41752389e26b"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/271f94f2-1e05-4616-ac43-41752389e26b"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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