ghsa-577p-7j7h-2jgf
Vulnerability from github
Published
2024-11-15 12:31
Modified
2024-11-18 21:23
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Deserialization of Untrusted Data in dompdf/dompdf
Details

DomPDF before version 2.0.0 is vulnerable to PHAR (PHP Archive) deserialization due to a lack of checking on the protocol before passing it into the file_get_contents() function. An attacker who can upload files of any type to the server can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution, especially when DOMPdf is used with frameworks with documented POP chains like Laravel or vulnerable developer code.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "dompdf/dompdf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-3838"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-15T20:36:04Z",
    "nvd_published_at": "2024-11-15T11:15:05Z",
    "severity": "CRITICAL"
  },
  "details": "DomPDF before version 2.0.0 is vulnerable to PHAR (PHP Archive) deserialization due to a lack of checking on the protocol before passing it into the file_get_contents() function. An attacker who can upload files of any type to the server can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution, especially when DOMPdf is used with frameworks with documented POP chains like Laravel or vulnerable developer code.",
  "id": "GHSA-577p-7j7h-2jgf",
  "modified": "2024-11-18T21:23:08Z",
  "published": "2024-11-15T12:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3838"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dompdf/dompdf/commit/99aeec1efec9213e87098d42eb09439e7ee0bb6a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dompdf/dompdf"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/0bdddc12-ff67-4815-ab9f-6011a974f48e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Deserialization of Untrusted Data in dompdf/dompdf"
}


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